PAWS Lab - User contributions [en]

User:Myudelson

2018-01-11T00:06:10Z

Myudelson: /* Michael V. Yudelson */

= Michael V. Yudelson =
Ph.D., Senior Research Scientist

[[Image:MikhailYudelson-800x800.jpg|300px|left]]

Human-Computer Interaction Institute 
Carnegie Mellon University 
5000 Forbes Ave. 
Newell-Simon Hall, rm. 2602C 
Pittsburgh, PA, 15219 USA 
Tel: +1 (412) 690-2442 x222 
Web: http://yudelson.info/

Mikhail (Michael) Yudelson, IS Ph.D. graduated in 2010. He is a Senior Research Scientist at [https://www.act.org ACT, Inc.]/[https://www.actnext.org ACTNext] since mid-2017. Prior to that, he worked as a Project Scientist at Human-Computer Interaction Institute, Carnegie Mellon University since early 2016. From 2013 to 2016 he was a Research Scientist at Carnegie Learning, Inc. After graduating from the University of Pittsburgh in 2010 and till 2013, he was a post-doctoral fellow at Human-Computer Interaction Institute and Pittsburgh Science of Learning Center of Carnegie Mellon University. Michael works on the issues of cognitive student modeling, knowledge transfer, and scalable building of hierarchical linear models and hidden Markov models. At Carnegie Learning, Michael worked on the issues of Big Data analytics and data-driven optimization of the intelligent tutoring systems such as Cognitive Tutor Algebra.

== Projects ==
*[[Personalized Access to Open Corpus Educational Resources through Adaptive Navigation Support and Adaptive Visualization]]
*[[Supporting Learning from Examples in a Programming Course]]

== Systems ==
* [[Ensemble]]
* [[Knowledge Tree]]
* [[CUMULATE]]
* [[PERSEUS]]
* [[NavEx]]
* [[CoPE]]
* [[WebEx]]

User:Myudelson

2018-01-11T00:05:51Z

Myudelson: /* Michael V. Yudelson */

= Michael V. Yudelson =
Ph.D. Project Scientist

[[Image:MikhailYudelson-800x800.jpg|300px|left]]

Human-Computer Interaction Institute 
Carnegie Mellon University 
5000 Forbes Ave. 
Newell-Simon Hall, rm. 2602C 
Pittsburgh, PA, 15219 USA 
Tel: +1 (412) 690-2442 x222 
Web: http://yudelson.info/

Mikhail (Michael) Yudelson, IS Ph.D. graduated in 2010. He is a Senior Research Scientist at [https://www.act.org ACT, Inc.]/[https://www.actnext.org ACTNext] since mid-2017. Prior to that, he worked as a Project Scientist at Human-Computer Interaction Institute, Carnegie Mellon University since early 2016. From 2013 to 2016 he was a Research Scientist at Carnegie Learning, Inc. After graduating from the University of Pittsburgh in 2010 and till 2013, he was a post-doctoral fellow at Human-Computer Interaction Institute and Pittsburgh Science of Learning Center of Carnegie Mellon University. Michael works on the issues of cognitive student modeling, knowledge transfer, and scalable building of hierarchical linear models and hidden Markov models. At Carnegie Learning, Michael worked on the issues of Big Data analytics and data-driven optimization of the intelligent tutoring systems such as Cognitive Tutor Algebra.

== Projects ==
*[[Personalized Access to Open Corpus Educational Resources through Adaptive Navigation Support and Adaptive Visualization]]
*[[Supporting Learning from Examples in a Programming Course]]

== Systems ==
* [[Ensemble]]
* [[Knowledge Tree]]
* [[CUMULATE]]
* [[PERSEUS]]
* [[NavEx]]
* [[CoPE]]
* [[WebEx]]

User:Myudelson

2018-01-11T00:05:36Z

Myudelson: /* Michael V. Yudelson */

= Michael V. Yudelson =
Ph.D. Project Scientist

[[Image:MikhailYudelson-800x800.jpg|200px|left]]

Human-Computer Interaction Institute 
Carnegie Mellon University 
5000 Forbes Ave. 
Newell-Simon Hall, rm. 2602C 
Pittsburgh, PA, 15219 USA 
Tel: +1 (412) 690-2442 x222 
Web: http://yudelson.info/

Mikhail (Michael) Yudelson, IS Ph.D. graduated in 2010. He is a Senior Research Scientist at [https://www.act.org ACT, Inc.]/[https://www.actnext.org ACTNext] since mid-2017. Prior to that, he worked as a Project Scientist at Human-Computer Interaction Institute, Carnegie Mellon University since early 2016. From 2013 to 2016 he was a Research Scientist at Carnegie Learning, Inc. After graduating from the University of Pittsburgh in 2010 and till 2013, he was a post-doctoral fellow at Human-Computer Interaction Institute and Pittsburgh Science of Learning Center of Carnegie Mellon University. Michael works on the issues of cognitive student modeling, knowledge transfer, and scalable building of hierarchical linear models and hidden Markov models. At Carnegie Learning, Michael worked on the issues of Big Data analytics and data-driven optimization of the intelligent tutoring systems such as Cognitive Tutor Algebra.

== Projects ==
*[[Personalized Access to Open Corpus Educational Resources through Adaptive Navigation Support and Adaptive Visualization]]
*[[Supporting Learning from Examples in a Programming Course]]

== Systems ==
* [[Ensemble]]
* [[Knowledge Tree]]
* [[CUMULATE]]
* [[PERSEUS]]
* [[NavEx]]
* [[CoPE]]
* [[WebEx]]

User:Myudelson

2018-01-11T00:04:15Z

Myudelson: /* Michael V. Yudelson */

= Michael V. Yudelson =
Ph.D. Project Scientist

[[Image:MikhailYudelson-800x800.jpg| left]]

Human-Computer Interaction Institute 
Carnegie Mellon University 
5000 Forbes Ave. 
Newell-Simon Hall, rm. 2602C 
Pittsburgh, PA, 15219 USA 
Tel: +1 (412) 690-2442 x222 
Web: http://yudelson.info/

Mikhail (Michael) Yudelson, IS Ph.D. graduated in 2010. He is a Senior Research Scientist at [https://www.act.org ACT, Inc.]/[https://www.actnext.org ACTNext] since mid-2017. Prior to that, he worked as a Project Scientist at Human-Computer Interaction Institute, Carnegie Mellon University since early 2016. From 2013 to 2016 he was a Research Scientist at Carnegie Learning, Inc. After graduating from the University of Pittsburgh in 2010 and till 2013, he was a post-doctoral fellow at Human-Computer Interaction Institute and Pittsburgh Science of Learning Center of Carnegie Mellon University. Michael works on the issues of cognitive student modeling, knowledge transfer, and scalable building of hierarchical linear models and hidden Markov models. At Carnegie Learning, Michael worked on the issues of Big Data analytics and data-driven optimization of the intelligent tutoring systems such as Cognitive Tutor Algebra.

== Projects ==
*[[Personalized Access to Open Corpus Educational Resources through Adaptive Navigation Support and Adaptive Visualization]]
*[[Supporting Learning from Examples in a Programming Course]]

== Systems ==
* [[Ensemble]]
* [[Knowledge Tree]]
* [[CUMULATE]]
* [[PERSEUS]]
* [[NavEx]]
* [[CoPE]]
* [[WebEx]]

User:Myudelson

2013-06-19T16:29:50Z

Myudelson: /* Michael V. Yudelson */

== Michael V. Yudelson ==
Ph.D. Research Scientist

[[Image:Michael_V_Yudelson.gif]]

Carnegie Learning Inc. 
437 Grant St. 
Pittsburgh, PA, 15219 USA 
Tel: +1 (412) 690-2442 x222 
Web: https://sites.google.com/site/myudelson/home

== Systems ==
* [[Ensemble]]
* [[Knowledge Tree]]
* [[CUMULATE]]
* [[PERSEUS]]
* [[NavEx]]
* [[CoPE]]
* [[WebEx]]

User:Myudelson

2013-06-19T16:28:46Z

Myudelson: /* Michael V. Yudelson */

== Michael V. Yudelson ==
Research Scientist

[[Image:Michael_V_Yudelson.gif]]

Carnegie Learning Inc. 
437 Grant St. 
Pittsburgh, PA, 15219 USA 
Tel: +1 (412) 690-2442 x222 
Web: https://sites.google.com/site/myudelson/home

== Systems ==
* [[Ensemble]]
* [[Knowledge Tree]]
* [[CUMULATE]]
* [[PERSEUS]]
* [[NavEx]]
* [[CoPE]]
* [[WebEx]]

User:Myudelson

2013-06-19T16:28:24Z

Myudelson: /* Michael V. Yudelson */

== Michael V. Yudelson ==
PHD Candidate

[[Image:Michael_V_Yudelson.gif]]

Carnegie Learning Inc. 
437 Grant St. 
Pittsburgh, PA, 15219 USA 
Tel: +1 (412) 690-2442 x222 
Web: https://sites.google.com/site/myudelson/home

== Systems ==
* [[Ensemble]]
* [[Knowledge Tree]]
* [[CUMULATE]]
* [[PERSEUS]]
* [[NavEx]]
* [[CoPE]]
* [[WebEx]]

User:Myudelson

2013-02-05T01:56:52Z

Myudelson: /* Michael V. Yudelson */

== Michael V. Yudelson ==
PHD Candidate

[[Image:Michael_V_Yudelson.gif]]

Human Computer Interaction Institute 
Carnegie Mellon University 
5000 Forbes Ave 
Newell-Simon Hall, Rm. 2602K 
Pittsburgh, PA, 15213 USA 
Tel: +1-412-268-9672 
Web: https://sites.google.com/site/myudelson/home

== Systems ==
* [[Ensemble]]
* [[Knowledge Tree]]
* [[CUMULATE]]
* [[PERSEUS]]
* [[NavEx]]
* [[CoPE]]
* [[WebEx]]

User:Myudelson

2013-02-05T01:56:35Z

Myudelson: /* Michael V. Yudelson */

== Michael V. Yudelson ==
PHD Candidate

[[Image:Michael_V_Yudelson.gif]]

Human Computer Interaction Institute 
Carnegie Mellon University 
5000 Forbes Ave
Newell-Simon Hall, Rm. 2602K 
Pittsburgh, PA, 15213 USA 
Tel: +1-412-268-9672 
Web: https://sites.google.com/site/myudelson/home

== Systems ==
* [[Ensemble]]
* [[Knowledge Tree]]
* [[CUMULATE]]
* [[PERSEUS]]
* [[NavEx]]
* [[CoPE]]
* [[WebEx]]

PERSEUS adaptation for Ensemble project

2011-02-15T20:44:42Z

Myudelson: /* Relevant Links */

= About Ensemble =
[[Ensemble]] is a new NSF NSDL Pathways project working to establish a national, distributed digital library for computing education. Our project is building a distributed portal providing access to a broad range of existing educational resources for computing while preserving the collections and their associated curation processes. We want to encourage contribution, use, reuse, review and evaluation of educational materials at multiple levels of granularity and we seek to support the full range of computing education communities including computer science, computer engineering, software engineering, information science, information systems and information technology as well as other areas often called “computing + X” or “X informatics.”

= Overview =
[[Image:Portal-group-social-navigation.png|thumb|'''100'''|Figure 1. Group-based social navigation]]
[[Image:Portal-group-n-individual-social-navigation.png|thumb|'''100'''|Figure 2. Group-based and individual social navigation]]
The main goal of enhancing Ensemble portal (http://www.computingportal.org) with adaptation is to provide an extra value to the rich collection of resources that the portal is currently hosting. Out of a large set of possible adaptation techniques we selected the one that captures the social traits of portal users. Namely, visualizes users' browsing behaviors.

In Figure 1 there is a screenshot of an existing portal page with adaptive navigation cues added. Here green bullets of various shades denote the intensity of the users' click traffic: the darker the shade - the more clicks visits the page has. Here users are not distinguished from each other. Instead, a page-viewing behavior of a community of all portal users is visualized. Figure 2 is a more elaborate example where each individual user is contrasted to the rest of the community. The bullet background represents the whole user community, an the foreground person icon denotes an individual user.

For the adaptation to work, Ensemble portal has to "cooperate" with the adaptation providers. There are two components that are responsible for adaptation.
# User modeling server [[CUMULATE]], that collects user page-viewing behavior. Portal should be able to send page-view events containing the viewed page URL and potentially additional information about the user.
# Adaptation server [[PERSEUS]], that, upon request, renders a visualization of aggregated user viewing-behaviors collected by the user modeling server. Portal should be able to query [[PERSEUS]] to obtain navigation icons (just like those in figure 1 and 2) for links on a particular portal page (all or a subset). It should also to be able to parse the [[PERSEUS]]'s response and paste these icons on the rendered page.

= Implementation =

== Reporting users's page-views ==
This par is absolutely necessary. Adaptation requires a special kind of user-data processing and cannot be easily implemented as a plugin for Drupal (the basis for Ensemble portal). Portal has to send an HTTP GET request to the [[CUMULATE|user modeling server's]] listening url that contains:
* URL of the page being viewed
* Some form of user identity (e.g. client IP address or portal login). This information is optional but desirable to be able to support a more advanced adaptation such as the one in Figure 2.

== Requesting adaptation ("easy", abandoned) ==
[[Image:Ensemble-embedlet-browser.png|thumb|'''100'''|Figure 3. [[PERSEUS]] embedlet rendered in a browser]]
Adaptation can be provided in a fairly painless manner by inserting '''embed''' HTML tags, just like those [http://www.youtube.com YouTube] offers. [[PERSEUS]]'s embedlet is, in some way, an iframe and [[PERSEUS]] assumes full responsibility to render links' presentation (see Figure 3 for an example of embedlet's rendering in a browser).

The use of these '''embedlets''' requires for the list of links adaptation is provided for to be cached in advance, so that the enumeration of links to be adaptively presented can be done in a concise manner and the invoked embedlet URL does not exceed 255 characters.

Embedlet could work in both group-based mode providing adaptation similar to the one shown in Figure 1, or group-and-individual mode, similar to the one shown in Figure 2.

== Requesting adaptation ("hard", implemented) ==
Here the Content Management System (CMS) has to be more engaged but the solution is more flexible.

The two requirements for the CMS that is has to be able to send a query to [[PERSEUS]] with a list of links to adapt and to be able to parse the response. Concrete format of the request/response is not important, since a special version of the adaptation services would be built for [[Ensemble]].

The following is a working draft for invoking [[PERSEUS]] adaptation (HTTP POST request is a must):
* '''http://adapt2.sis.pitt.edu/pservice/service/ensemble-sn/invoke/ensemble-sn''' is a base URL of PERSEUS social navigation support service for [[Ensemble]]
* HTTP POST should be used to invoke, HTTP GET to access a 'manual' mode for testing
* '''user_id''' - user id login of the logged-in portal user; currently meta user '''meta_ensemble''' should be used
* '''group_id''' group id, id of the portal community; currently meta community '''meta_group''' should be used
* '''uri''' - list of links to adapt; these are the links sent to CUMULATE with reports of user clicks; the list items should be separated by CR (carriage return)
* '''vis_id''' - an id of a visualizer that formats the output by selecting appropriate annotations for the aggregated numerical values; at this point should be equal to '''ensemble-sn-shadeviz'''; alternatively '''/vis/ensemble-sn-shadeviz/''' could be added at the end of the base URL to achieve the same result, so the URL would be '''http://adapt2.sis.pitt.edu/pservice/service/ensemble-sn/invoke/ensemble-sn/vis/ensemble-sn-shadeviz'''
* returned response is a list of annotations - HTML snippets (e.g. img tag and maybe something extra) to be placed in front of the link; the order of annotations is the same as in the request.

== Relevant Links ==
* [http://www.computingportal.org/ Ensemble Computing Portal]
* [[CUMULATE_protocol|Protocol]] for exchanging data with [[CUMULATE]]'s user model, in particular - a [[CUMULATE_protocol#Protocol_for_reporting_user_activity|section]] on how to send clicks to the user model
* [http://www.computingportal.org/admin/settings/navigation_cues Module for sending user clicks to CUMULATE settings page] (authentication necessary)

= Progress Blog =
* 13:49, 9 July 2010 (EDT) : Drupal Rules module identified as a way to redirect user clicks to [[CUMULATE]] UMS
* 18:27, 15 July 2010 (EDT) : [[CUMULATE]] configured for accepting test input of Ensemble portal user navigation reports via [[CUMULATE_protocol#Protocol_for_reporting_user_activity|this]] protocol. Preliminary by-hand testing is successful.
* 18:51, 15 July 2010 (EDT) : Preliminary test of Ensemble portal user navigation reports to [[CUMULATE]] successful
* 10:44, 27 July 2010 (EDT) : Drupal module for sending user clicks to [[CUMULATE]] is confirmed to work properly on [http://owaine.dlib.vt.edu/sites/ U. of Oregon test portal]
* 12:05, 29 July 2010 (EDT) Meeting with [http://web.cecs.pdx.edu/~lmd/ Dr. Delcambre] and Elizabeth on moving forward with building the adaptation into the portal. Decided to look further onto Drupal themes and modules (Elizabeth) for ways to paste the calls for adaptations and to create a specialized version of [[PERSEUS]] service for the Portal ([[User:Myudelson|Michael]]).
* 16:43, 31 August 2010 (EDT) : Stub [[PERSEUS]] social navigation service for [[Ensemble]] is created and deployed ([[User:Myudelson|Michael]]).
* 07:06, 3 September 2010 (EDT) : first vanilla working [http://ensemble.cs.pdx.edu/vanilla example] of [[PERSEUS]] adaptation on the portal is deployed by Elizabeth
* 14:13, 23 September 2010 (EDT) : Group-based social adaptation is now fully operational. It is currently deployed on U. of Portland test server. Check [http://ensemble.cs.pdx.edu/vanilla vanilla example].
* 11:14, 28 September 2010 (EDT) : Group-based social adaptation [[PERSEUS]] adaptation is fully operational on the main server, refer to [http://owaine.dlib.vt.edu/sites/cs1 this example].

= Contacts =
* [[User:Myudelson | Michael V. Yudelson]]
* Elizabeth Heinlein

PERSEUS adaptation for Ensemble project

2011-02-15T14:10:08Z

Myudelson: /* Relevant Links */

= About Ensemble =
[[Ensemble]] is a new NSF NSDL Pathways project working to establish a national, distributed digital library for computing education. Our project is building a distributed portal providing access to a broad range of existing educational resources for computing while preserving the collections and their associated curation processes. We want to encourage contribution, use, reuse, review and evaluation of educational materials at multiple levels of granularity and we seek to support the full range of computing education communities including computer science, computer engineering, software engineering, information science, information systems and information technology as well as other areas often called “computing + X” or “X informatics.”

= Overview =
[[Image:Portal-group-social-navigation.png|thumb|'''100'''|Figure 1. Group-based social navigation]]
[[Image:Portal-group-n-individual-social-navigation.png|thumb|'''100'''|Figure 2. Group-based and individual social navigation]]
The main goal of enhancing Ensemble portal (http://www.computingportal.org) with adaptation is to provide an extra value to the rich collection of resources that the portal is currently hosting. Out of a large set of possible adaptation techniques we selected the one that captures the social traits of portal users. Namely, visualizes users' browsing behaviors.

In Figure 1 there is a screenshot of an existing portal page with adaptive navigation cues added. Here green bullets of various shades denote the intensity of the users' click traffic: the darker the shade - the more clicks visits the page has. Here users are not distinguished from each other. Instead, a page-viewing behavior of a community of all portal users is visualized. Figure 2 is a more elaborate example where each individual user is contrasted to the rest of the community. The bullet background represents the whole user community, an the foreground person icon denotes an individual user.

For the adaptation to work, Ensemble portal has to "cooperate" with the adaptation providers. There are two components that are responsible for adaptation.
# User modeling server [[CUMULATE]], that collects user page-viewing behavior. Portal should be able to send page-view events containing the viewed page URL and potentially additional information about the user.
# Adaptation server [[PERSEUS]], that, upon request, renders a visualization of aggregated user viewing-behaviors collected by the user modeling server. Portal should be able to query [[PERSEUS]] to obtain navigation icons (just like those in figure 1 and 2) for links on a particular portal page (all or a subset). It should also to be able to parse the [[PERSEUS]]'s response and paste these icons on the rendered page.

= Implementation =

== Reporting users's page-views ==
This par is absolutely necessary. Adaptation requires a special kind of user-data processing and cannot be easily implemented as a plugin for Drupal (the basis for Ensemble portal). Portal has to send an HTTP GET request to the [[CUMULATE|user modeling server's]] listening url that contains:
* URL of the page being viewed
* Some form of user identity (e.g. client IP address or portal login). This information is optional but desirable to be able to support a more advanced adaptation such as the one in Figure 2.

== Requesting adaptation ("easy", abandoned) ==
[[Image:Ensemble-embedlet-browser.png|thumb|'''100'''|Figure 3. [[PERSEUS]] embedlet rendered in a browser]]
Adaptation can be provided in a fairly painless manner by inserting '''embed''' HTML tags, just like those [http://www.youtube.com YouTube] offers. [[PERSEUS]]'s embedlet is, in some way, an iframe and [[PERSEUS]] assumes full responsibility to render links' presentation (see Figure 3 for an example of embedlet's rendering in a browser).

The use of these '''embedlets''' requires for the list of links adaptation is provided for to be cached in advance, so that the enumeration of links to be adaptively presented can be done in a concise manner and the invoked embedlet URL does not exceed 255 characters.

Embedlet could work in both group-based mode providing adaptation similar to the one shown in Figure 1, or group-and-individual mode, similar to the one shown in Figure 2.

== Requesting adaptation ("hard", implemented) ==
Here the Content Management System (CMS) has to be more engaged but the solution is more flexible.

The two requirements for the CMS that is has to be able to send a query to [[PERSEUS]] with a list of links to adapt and to be able to parse the response. Concrete format of the request/response is not important, since a special version of the adaptation services would be built for [[Ensemble]].

The following is a working draft for invoking [[PERSEUS]] adaptation (HTTP POST request is a must):
* '''http://adapt2.sis.pitt.edu/pservice/service/ensemble-sn/invoke/ensemble-sn''' is a base URL of PERSEUS social navigation support service for [[Ensemble]]
* HTTP POST should be used to invoke, HTTP GET to access a 'manual' mode for testing
* '''user_id''' - user id login of the logged-in portal user; currently meta user '''meta_ensemble''' should be used
* '''group_id''' group id, id of the portal community; currently meta community '''meta_group''' should be used
* '''uri''' - list of links to adapt; these are the links sent to CUMULATE with reports of user clicks; the list items should be separated by CR (carriage return)
* '''vis_id''' - an id of a visualizer that formats the output by selecting appropriate annotations for the aggregated numerical values; at this point should be equal to '''ensemble-sn-shadeviz'''; alternatively '''/vis/ensemble-sn-shadeviz/''' could be added at the end of the base URL to achieve the same result, so the URL would be '''http://adapt2.sis.pitt.edu/pservice/service/ensemble-sn/invoke/ensemble-sn/vis/ensemble-sn-shadeviz'''
* returned response is a list of annotations - HTML snippets (e.g. img tag and maybe something extra) to be placed in front of the link; the order of annotations is the same as in the request.

== Relevant Links ==
* [http://www.computingportal.org/ Ensemble Computing Portal]
* [[CUMULATE_protocol|Protocol]] for exchanging data with [[CUMULATE]]'s user model, in particular - a [[CUMULATE_protocol#Protocol_for_reporting_user_activity|section]] on how to send clicks to the user model
* [http://owaine.dlib.vt.edu/sites/admin/settings/http_request_per_page Module for sending user clicks to CUMULATE settings page] (authentication necessary)

= Progress Blog =
* 13:49, 9 July 2010 (EDT) : Drupal Rules module identified as a way to redirect user clicks to [[CUMULATE]] UMS
* 18:27, 15 July 2010 (EDT) : [[CUMULATE]] configured for accepting test input of Ensemble portal user navigation reports via [[CUMULATE_protocol#Protocol_for_reporting_user_activity|this]] protocol. Preliminary by-hand testing is successful.
* 18:51, 15 July 2010 (EDT) : Preliminary test of Ensemble portal user navigation reports to [[CUMULATE]] successful
* 10:44, 27 July 2010 (EDT) : Drupal module for sending user clicks to [[CUMULATE]] is confirmed to work properly on [http://owaine.dlib.vt.edu/sites/ U. of Oregon test portal]
* 12:05, 29 July 2010 (EDT) Meeting with [http://web.cecs.pdx.edu/~lmd/ Dr. Delcambre] and Elizabeth on moving forward with building the adaptation into the portal. Decided to look further onto Drupal themes and modules (Elizabeth) for ways to paste the calls for adaptations and to create a specialized version of [[PERSEUS]] service for the Portal ([[User:Myudelson|Michael]]).
* 16:43, 31 August 2010 (EDT) : Stub [[PERSEUS]] social navigation service for [[Ensemble]] is created and deployed ([[User:Myudelson|Michael]]).
* 07:06, 3 September 2010 (EDT) : first vanilla working [http://ensemble.cs.pdx.edu/vanilla example] of [[PERSEUS]] adaptation on the portal is deployed by Elizabeth
* 14:13, 23 September 2010 (EDT) : Group-based social adaptation is now fully operational. It is currently deployed on U. of Portland test server. Check [http://ensemble.cs.pdx.edu/vanilla vanilla example].
* 11:14, 28 September 2010 (EDT) : Group-based social adaptation [[PERSEUS]] adaptation is fully operational on the main server, refer to [http://owaine.dlib.vt.edu/sites/cs1 this example].

= Contacts =
* [[User:Myudelson | Michael V. Yudelson]]
* Elizabeth Heinlein

PERSEUS adaptation for Ensemble project

2011-02-15T14:09:36Z

Myudelson: /* Relevant Links */

= About Ensemble =
[[Ensemble]] is a new NSF NSDL Pathways project working to establish a national, distributed digital library for computing education. Our project is building a distributed portal providing access to a broad range of existing educational resources for computing while preserving the collections and their associated curation processes. We want to encourage contribution, use, reuse, review and evaluation of educational materials at multiple levels of granularity and we seek to support the full range of computing education communities including computer science, computer engineering, software engineering, information science, information systems and information technology as well as other areas often called “computing + X” or “X informatics.”

= Overview =
[[Image:Portal-group-social-navigation.png|thumb|'''100'''|Figure 1. Group-based social navigation]]
[[Image:Portal-group-n-individual-social-navigation.png|thumb|'''100'''|Figure 2. Group-based and individual social navigation]]
The main goal of enhancing Ensemble portal (http://www.computingportal.org) with adaptation is to provide an extra value to the rich collection of resources that the portal is currently hosting. Out of a large set of possible adaptation techniques we selected the one that captures the social traits of portal users. Namely, visualizes users' browsing behaviors.

In Figure 1 there is a screenshot of an existing portal page with adaptive navigation cues added. Here green bullets of various shades denote the intensity of the users' click traffic: the darker the shade - the more clicks visits the page has. Here users are not distinguished from each other. Instead, a page-viewing behavior of a community of all portal users is visualized. Figure 2 is a more elaborate example where each individual user is contrasted to the rest of the community. The bullet background represents the whole user community, an the foreground person icon denotes an individual user.

For the adaptation to work, Ensemble portal has to "cooperate" with the adaptation providers. There are two components that are responsible for adaptation.
# User modeling server [[CUMULATE]], that collects user page-viewing behavior. Portal should be able to send page-view events containing the viewed page URL and potentially additional information about the user.
# Adaptation server [[PERSEUS]], that, upon request, renders a visualization of aggregated user viewing-behaviors collected by the user modeling server. Portal should be able to query [[PERSEUS]] to obtain navigation icons (just like those in figure 1 and 2) for links on a particular portal page (all or a subset). It should also to be able to parse the [[PERSEUS]]'s response and paste these icons on the rendered page.

= Implementation =

== Reporting users's page-views ==
This par is absolutely necessary. Adaptation requires a special kind of user-data processing and cannot be easily implemented as a plugin for Drupal (the basis for Ensemble portal). Portal has to send an HTTP GET request to the [[CUMULATE|user modeling server's]] listening url that contains:
* URL of the page being viewed
* Some form of user identity (e.g. client IP address or portal login). This information is optional but desirable to be able to support a more advanced adaptation such as the one in Figure 2.

== Requesting adaptation ("easy", abandoned) ==
[[Image:Ensemble-embedlet-browser.png|thumb|'''100'''|Figure 3. [[PERSEUS]] embedlet rendered in a browser]]
Adaptation can be provided in a fairly painless manner by inserting '''embed''' HTML tags, just like those [http://www.youtube.com YouTube] offers. [[PERSEUS]]'s embedlet is, in some way, an iframe and [[PERSEUS]] assumes full responsibility to render links' presentation (see Figure 3 for an example of embedlet's rendering in a browser).

The use of these '''embedlets''' requires for the list of links adaptation is provided for to be cached in advance, so that the enumeration of links to be adaptively presented can be done in a concise manner and the invoked embedlet URL does not exceed 255 characters.

Embedlet could work in both group-based mode providing adaptation similar to the one shown in Figure 1, or group-and-individual mode, similar to the one shown in Figure 2.

== Requesting adaptation ("hard", implemented) ==
Here the Content Management System (CMS) has to be more engaged but the solution is more flexible.

The two requirements for the CMS that is has to be able to send a query to [[PERSEUS]] with a list of links to adapt and to be able to parse the response. Concrete format of the request/response is not important, since a special version of the adaptation services would be built for [[Ensemble]].

The following is a working draft for invoking [[PERSEUS]] adaptation (HTTP POST request is a must):
* '''http://adapt2.sis.pitt.edu/pservice/service/ensemble-sn/invoke/ensemble-sn''' is a base URL of PERSEUS social navigation support service for [[Ensemble]]
* HTTP POST should be used to invoke, HTTP GET to access a 'manual' mode for testing
* '''user_id''' - user id login of the logged-in portal user; currently meta user '''meta_ensemble''' should be used
* '''group_id''' group id, id of the portal community; currently meta community '''meta_group''' should be used
* '''uri''' - list of links to adapt; these are the links sent to CUMULATE with reports of user clicks; the list items should be separated by CR (carriage return)
* '''vis_id''' - an id of a visualizer that formats the output by selecting appropriate annotations for the aggregated numerical values; at this point should be equal to '''ensemble-sn-shadeviz'''; alternatively '''/vis/ensemble-sn-shadeviz/''' could be added at the end of the base URL to achieve the same result, so the URL would be '''http://adapt2.sis.pitt.edu/pservice/service/ensemble-sn/invoke/ensemble-sn/vis/ensemble-sn-shadeviz'''
* returned response is a list of annotations - HTML snippets (e.g. img tag and maybe something extra) to be placed in front of the link; the order of annotations is the same as in the request.

== Relevant Links ==
* [http://www.computingportal.org/ Ensemble Computing Portal]
* [[CUMULATE_protocol|Protocol]] for exchanging data with [[CUMULATE]]'s user model, in particular - a [[CUMULATE_protocol#Protocol_for_reporting_user_activity]] on how to send clicks to the user model
* [http://owaine.dlib.vt.edu/sites/admin/settings/http_request_per_page Module for sending user clicks to CUMULATE settings page] (authentication necessary)

= Progress Blog =
* 13:49, 9 July 2010 (EDT) : Drupal Rules module identified as a way to redirect user clicks to [[CUMULATE]] UMS
* 18:27, 15 July 2010 (EDT) : [[CUMULATE]] configured for accepting test input of Ensemble portal user navigation reports via [[CUMULATE_protocol#Protocol_for_reporting_user_activity|this]] protocol. Preliminary by-hand testing is successful.
* 18:51, 15 July 2010 (EDT) : Preliminary test of Ensemble portal user navigation reports to [[CUMULATE]] successful
* 10:44, 27 July 2010 (EDT) : Drupal module for sending user clicks to [[CUMULATE]] is confirmed to work properly on [http://owaine.dlib.vt.edu/sites/ U. of Oregon test portal]
* 12:05, 29 July 2010 (EDT) Meeting with [http://web.cecs.pdx.edu/~lmd/ Dr. Delcambre] and Elizabeth on moving forward with building the adaptation into the portal. Decided to look further onto Drupal themes and modules (Elizabeth) for ways to paste the calls for adaptations and to create a specialized version of [[PERSEUS]] service for the Portal ([[User:Myudelson|Michael]]).
* 16:43, 31 August 2010 (EDT) : Stub [[PERSEUS]] social navigation service for [[Ensemble]] is created and deployed ([[User:Myudelson|Michael]]).
* 07:06, 3 September 2010 (EDT) : first vanilla working [http://ensemble.cs.pdx.edu/vanilla example] of [[PERSEUS]] adaptation on the portal is deployed by Elizabeth
* 14:13, 23 September 2010 (EDT) : Group-based social adaptation is now fully operational. It is currently deployed on U. of Portland test server. Check [http://ensemble.cs.pdx.edu/vanilla vanilla example].
* 11:14, 28 September 2010 (EDT) : Group-based social adaptation [[PERSEUS]] adaptation is fully operational on the main server, refer to [http://owaine.dlib.vt.edu/sites/cs1 this example].

= Contacts =
* [[User:Myudelson | Michael V. Yudelson]]
* Elizabeth Heinlein

PERSEUS adaptation for Ensemble project

2011-02-15T14:09:28Z

Myudelson: /* Relevant Links */

= About Ensemble =
[[Ensemble]] is a new NSF NSDL Pathways project working to establish a national, distributed digital library for computing education. Our project is building a distributed portal providing access to a broad range of existing educational resources for computing while preserving the collections and their associated curation processes. We want to encourage contribution, use, reuse, review and evaluation of educational materials at multiple levels of granularity and we seek to support the full range of computing education communities including computer science, computer engineering, software engineering, information science, information systems and information technology as well as other areas often called “computing + X” or “X informatics.”

= Overview =
[[Image:Portal-group-social-navigation.png|thumb|'''100'''|Figure 1. Group-based social navigation]]
[[Image:Portal-group-n-individual-social-navigation.png|thumb|'''100'''|Figure 2. Group-based and individual social navigation]]
The main goal of enhancing Ensemble portal (http://www.computingportal.org) with adaptation is to provide an extra value to the rich collection of resources that the portal is currently hosting. Out of a large set of possible adaptation techniques we selected the one that captures the social traits of portal users. Namely, visualizes users' browsing behaviors.

In Figure 1 there is a screenshot of an existing portal page with adaptive navigation cues added. Here green bullets of various shades denote the intensity of the users' click traffic: the darker the shade - the more clicks visits the page has. Here users are not distinguished from each other. Instead, a page-viewing behavior of a community of all portal users is visualized. Figure 2 is a more elaborate example where each individual user is contrasted to the rest of the community. The bullet background represents the whole user community, an the foreground person icon denotes an individual user.

For the adaptation to work, Ensemble portal has to "cooperate" with the adaptation providers. There are two components that are responsible for adaptation.
# User modeling server [[CUMULATE]], that collects user page-viewing behavior. Portal should be able to send page-view events containing the viewed page URL and potentially additional information about the user.
# Adaptation server [[PERSEUS]], that, upon request, renders a visualization of aggregated user viewing-behaviors collected by the user modeling server. Portal should be able to query [[PERSEUS]] to obtain navigation icons (just like those in figure 1 and 2) for links on a particular portal page (all or a subset). It should also to be able to parse the [[PERSEUS]]'s response and paste these icons on the rendered page.

= Implementation =

== Reporting users's page-views ==
This par is absolutely necessary. Adaptation requires a special kind of user-data processing and cannot be easily implemented as a plugin for Drupal (the basis for Ensemble portal). Portal has to send an HTTP GET request to the [[CUMULATE|user modeling server's]] listening url that contains:
* URL of the page being viewed
* Some form of user identity (e.g. client IP address or portal login). This information is optional but desirable to be able to support a more advanced adaptation such as the one in Figure 2.

== Requesting adaptation ("easy", abandoned) ==
[[Image:Ensemble-embedlet-browser.png|thumb|'''100'''|Figure 3. [[PERSEUS]] embedlet rendered in a browser]]
Adaptation can be provided in a fairly painless manner by inserting '''embed''' HTML tags, just like those [http://www.youtube.com YouTube] offers. [[PERSEUS]]'s embedlet is, in some way, an iframe and [[PERSEUS]] assumes full responsibility to render links' presentation (see Figure 3 for an example of embedlet's rendering in a browser).

The use of these '''embedlets''' requires for the list of links adaptation is provided for to be cached in advance, so that the enumeration of links to be adaptively presented can be done in a concise manner and the invoked embedlet URL does not exceed 255 characters.

Embedlet could work in both group-based mode providing adaptation similar to the one shown in Figure 1, or group-and-individual mode, similar to the one shown in Figure 2.

== Requesting adaptation ("hard", implemented) ==
Here the Content Management System (CMS) has to be more engaged but the solution is more flexible.

The two requirements for the CMS that is has to be able to send a query to [[PERSEUS]] with a list of links to adapt and to be able to parse the response. Concrete format of the request/response is not important, since a special version of the adaptation services would be built for [[Ensemble]].

The following is a working draft for invoking [[PERSEUS]] adaptation (HTTP POST request is a must):
* '''http://adapt2.sis.pitt.edu/pservice/service/ensemble-sn/invoke/ensemble-sn''' is a base URL of PERSEUS social navigation support service for [[Ensemble]]
* HTTP POST should be used to invoke, HTTP GET to access a 'manual' mode for testing
* '''user_id''' - user id login of the logged-in portal user; currently meta user '''meta_ensemble''' should be used
* '''group_id''' group id, id of the portal community; currently meta community '''meta_group''' should be used
* '''uri''' - list of links to adapt; these are the links sent to CUMULATE with reports of user clicks; the list items should be separated by CR (carriage return)
* '''vis_id''' - an id of a visualizer that formats the output by selecting appropriate annotations for the aggregated numerical values; at this point should be equal to '''ensemble-sn-shadeviz'''; alternatively '''/vis/ensemble-sn-shadeviz/''' could be added at the end of the base URL to achieve the same result, so the URL would be '''http://adapt2.sis.pitt.edu/pservice/service/ensemble-sn/invoke/ensemble-sn/vis/ensemble-sn-shadeviz'''
* returned response is a list of annotations - HTML snippets (e.g. img tag and maybe something extra) to be placed in front of the link; the order of annotations is the same as in the request.

== Relevant Links ==
* [http://www.computingportal.org/ Ensemble Computing Portal]
* [[CUMULATE_protocol|Protocol]] for exchanging data with [[CUMULATE]]'s user model, in particular - a [[CUMULATE]] on how to send clicks to the user model
* [http://owaine.dlib.vt.edu/sites/admin/settings/http_request_per_page Module for sending user clicks to CUMULATE settings page] (authentication necessary)

= Progress Blog =
* 13:49, 9 July 2010 (EDT) : Drupal Rules module identified as a way to redirect user clicks to [[CUMULATE]] UMS
* 18:27, 15 July 2010 (EDT) : [[CUMULATE]] configured for accepting test input of Ensemble portal user navigation reports via [[CUMULATE_protocol#Protocol_for_reporting_user_activity|this]] protocol. Preliminary by-hand testing is successful.
* 18:51, 15 July 2010 (EDT) : Preliminary test of Ensemble portal user navigation reports to [[CUMULATE]] successful
* 10:44, 27 July 2010 (EDT) : Drupal module for sending user clicks to [[CUMULATE]] is confirmed to work properly on [http://owaine.dlib.vt.edu/sites/ U. of Oregon test portal]
* 12:05, 29 July 2010 (EDT) Meeting with [http://web.cecs.pdx.edu/~lmd/ Dr. Delcambre] and Elizabeth on moving forward with building the adaptation into the portal. Decided to look further onto Drupal themes and modules (Elizabeth) for ways to paste the calls for adaptations and to create a specialized version of [[PERSEUS]] service for the Portal ([[User:Myudelson|Michael]]).
* 16:43, 31 August 2010 (EDT) : Stub [[PERSEUS]] social navigation service for [[Ensemble]] is created and deployed ([[User:Myudelson|Michael]]).
* 07:06, 3 September 2010 (EDT) : first vanilla working [http://ensemble.cs.pdx.edu/vanilla example] of [[PERSEUS]] adaptation on the portal is deployed by Elizabeth
* 14:13, 23 September 2010 (EDT) : Group-based social adaptation is now fully operational. It is currently deployed on U. of Portland test server. Check [http://ensemble.cs.pdx.edu/vanilla vanilla example].
* 11:14, 28 September 2010 (EDT) : Group-based social adaptation [[PERSEUS]] adaptation is fully operational on the main server, refer to [http://owaine.dlib.vt.edu/sites/cs1 this example].

= Contacts =
* [[User:Myudelson | Michael V. Yudelson]]
* Elizabeth Heinlein

PERSEUS adaptation for Ensemble project

2011-02-15T14:08:39Z

Myudelson: /* Relevant Links */

= About Ensemble =
[[Ensemble]] is a new NSF NSDL Pathways project working to establish a national, distributed digital library for computing education. Our project is building a distributed portal providing access to a broad range of existing educational resources for computing while preserving the collections and their associated curation processes. We want to encourage contribution, use, reuse, review and evaluation of educational materials at multiple levels of granularity and we seek to support the full range of computing education communities including computer science, computer engineering, software engineering, information science, information systems and information technology as well as other areas often called “computing + X” or “X informatics.”

= Overview =
[[Image:Portal-group-social-navigation.png|thumb|'''100'''|Figure 1. Group-based social navigation]]
[[Image:Portal-group-n-individual-social-navigation.png|thumb|'''100'''|Figure 2. Group-based and individual social navigation]]
The main goal of enhancing Ensemble portal (http://www.computingportal.org) with adaptation is to provide an extra value to the rich collection of resources that the portal is currently hosting. Out of a large set of possible adaptation techniques we selected the one that captures the social traits of portal users. Namely, visualizes users' browsing behaviors.

In Figure 1 there is a screenshot of an existing portal page with adaptive navigation cues added. Here green bullets of various shades denote the intensity of the users' click traffic: the darker the shade - the more clicks visits the page has. Here users are not distinguished from each other. Instead, a page-viewing behavior of a community of all portal users is visualized. Figure 2 is a more elaborate example where each individual user is contrasted to the rest of the community. The bullet background represents the whole user community, an the foreground person icon denotes an individual user.

For the adaptation to work, Ensemble portal has to "cooperate" with the adaptation providers. There are two components that are responsible for adaptation.
# User modeling server [[CUMULATE]], that collects user page-viewing behavior. Portal should be able to send page-view events containing the viewed page URL and potentially additional information about the user.
# Adaptation server [[PERSEUS]], that, upon request, renders a visualization of aggregated user viewing-behaviors collected by the user modeling server. Portal should be able to query [[PERSEUS]] to obtain navigation icons (just like those in figure 1 and 2) for links on a particular portal page (all or a subset). It should also to be able to parse the [[PERSEUS]]'s response and paste these icons on the rendered page.

= Implementation =

== Reporting users's page-views ==
This par is absolutely necessary. Adaptation requires a special kind of user-data processing and cannot be easily implemented as a plugin for Drupal (the basis for Ensemble portal). Portal has to send an HTTP GET request to the [[CUMULATE|user modeling server's]] listening url that contains:
* URL of the page being viewed
* Some form of user identity (e.g. client IP address or portal login). This information is optional but desirable to be able to support a more advanced adaptation such as the one in Figure 2.

== Requesting adaptation ("easy", abandoned) ==
[[Image:Ensemble-embedlet-browser.png|thumb|'''100'''|Figure 3. [[PERSEUS]] embedlet rendered in a browser]]
Adaptation can be provided in a fairly painless manner by inserting '''embed''' HTML tags, just like those [http://www.youtube.com YouTube] offers. [[PERSEUS]]'s embedlet is, in some way, an iframe and [[PERSEUS]] assumes full responsibility to render links' presentation (see Figure 3 for an example of embedlet's rendering in a browser).

The use of these '''embedlets''' requires for the list of links adaptation is provided for to be cached in advance, so that the enumeration of links to be adaptively presented can be done in a concise manner and the invoked embedlet URL does not exceed 255 characters.

Embedlet could work in both group-based mode providing adaptation similar to the one shown in Figure 1, or group-and-individual mode, similar to the one shown in Figure 2.

== Requesting adaptation ("hard", implemented) ==
Here the Content Management System (CMS) has to be more engaged but the solution is more flexible.

The two requirements for the CMS that is has to be able to send a query to [[PERSEUS]] with a list of links to adapt and to be able to parse the response. Concrete format of the request/response is not important, since a special version of the adaptation services would be built for [[Ensemble]].

The following is a working draft for invoking [[PERSEUS]] adaptation (HTTP POST request is a must):
* '''http://adapt2.sis.pitt.edu/pservice/service/ensemble-sn/invoke/ensemble-sn''' is a base URL of PERSEUS social navigation support service for [[Ensemble]]
* HTTP POST should be used to invoke, HTTP GET to access a 'manual' mode for testing
* '''user_id''' - user id login of the logged-in portal user; currently meta user '''meta_ensemble''' should be used
* '''group_id''' group id, id of the portal community; currently meta community '''meta_group''' should be used
* '''uri''' - list of links to adapt; these are the links sent to CUMULATE with reports of user clicks; the list items should be separated by CR (carriage return)
* '''vis_id''' - an id of a visualizer that formats the output by selecting appropriate annotations for the aggregated numerical values; at this point should be equal to '''ensemble-sn-shadeviz'''; alternatively '''/vis/ensemble-sn-shadeviz/''' could be added at the end of the base URL to achieve the same result, so the URL would be '''http://adapt2.sis.pitt.edu/pservice/service/ensemble-sn/invoke/ensemble-sn/vis/ensemble-sn-shadeviz'''
* returned response is a list of annotations - HTML snippets (e.g. img tag and maybe something extra) to be placed in front of the link; the order of annotations is the same as in the request.

== Relevant Links ==
* [http://www.computingportal.org/ Ensemble Computing Portal]
* [[CUMULATE_protocol|Protocol]] for exchanging data with [[CUMULATE]]'s user model, in particular - a [[CUMULATE section]] on how to send clicks to the user model
* [http://owaine.dlib.vt.edu/sites/admin/settings/http_request_per_page Module for sending user clicks to CUMULATE settings page] (authentication necessary)

= Progress Blog =
* 13:49, 9 July 2010 (EDT) : Drupal Rules module identified as a way to redirect user clicks to [[CUMULATE]] UMS
* 18:27, 15 July 2010 (EDT) : [[CUMULATE]] configured for accepting test input of Ensemble portal user navigation reports via [[CUMULATE_protocol#Protocol_for_reporting_user_activity|this]] protocol. Preliminary by-hand testing is successful.
* 18:51, 15 July 2010 (EDT) : Preliminary test of Ensemble portal user navigation reports to [[CUMULATE]] successful
* 10:44, 27 July 2010 (EDT) : Drupal module for sending user clicks to [[CUMULATE]] is confirmed to work properly on [http://owaine.dlib.vt.edu/sites/ U. of Oregon test portal]
* 12:05, 29 July 2010 (EDT) Meeting with [http://web.cecs.pdx.edu/~lmd/ Dr. Delcambre] and Elizabeth on moving forward with building the adaptation into the portal. Decided to look further onto Drupal themes and modules (Elizabeth) for ways to paste the calls for adaptations and to create a specialized version of [[PERSEUS]] service for the Portal ([[User:Myudelson|Michael]]).
* 16:43, 31 August 2010 (EDT) : Stub [[PERSEUS]] social navigation service for [[Ensemble]] is created and deployed ([[User:Myudelson|Michael]]).
* 07:06, 3 September 2010 (EDT) : first vanilla working [http://ensemble.cs.pdx.edu/vanilla example] of [[PERSEUS]] adaptation on the portal is deployed by Elizabeth
* 14:13, 23 September 2010 (EDT) : Group-based social adaptation is now fully operational. It is currently deployed on U. of Portland test server. Check [http://ensemble.cs.pdx.edu/vanilla vanilla example].
* 11:14, 28 September 2010 (EDT) : Group-based social adaptation [[PERSEUS]] adaptation is fully operational on the main server, refer to [http://owaine.dlib.vt.edu/sites/cs1 this example].

= Contacts =
* [[User:Myudelson | Michael V. Yudelson]]
* Elizabeth Heinlein

PERSEUS adaptation for Ensemble project

2011-02-15T14:08:15Z

Myudelson: /* Relevant Links */

= About Ensemble =
[[Ensemble]] is a new NSF NSDL Pathways project working to establish a national, distributed digital library for computing education. Our project is building a distributed portal providing access to a broad range of existing educational resources for computing while preserving the collections and their associated curation processes. We want to encourage contribution, use, reuse, review and evaluation of educational materials at multiple levels of granularity and we seek to support the full range of computing education communities including computer science, computer engineering, software engineering, information science, information systems and information technology as well as other areas often called “computing + X” or “X informatics.”

= Overview =
[[Image:Portal-group-social-navigation.png|thumb|'''100'''|Figure 1. Group-based social navigation]]
[[Image:Portal-group-n-individual-social-navigation.png|thumb|'''100'''|Figure 2. Group-based and individual social navigation]]
The main goal of enhancing Ensemble portal (http://www.computingportal.org) with adaptation is to provide an extra value to the rich collection of resources that the portal is currently hosting. Out of a large set of possible adaptation techniques we selected the one that captures the social traits of portal users. Namely, visualizes users' browsing behaviors.

In Figure 1 there is a screenshot of an existing portal page with adaptive navigation cues added. Here green bullets of various shades denote the intensity of the users' click traffic: the darker the shade - the more clicks visits the page has. Here users are not distinguished from each other. Instead, a page-viewing behavior of a community of all portal users is visualized. Figure 2 is a more elaborate example where each individual user is contrasted to the rest of the community. The bullet background represents the whole user community, an the foreground person icon denotes an individual user.

For the adaptation to work, Ensemble portal has to "cooperate" with the adaptation providers. There are two components that are responsible for adaptation.
# User modeling server [[CUMULATE]], that collects user page-viewing behavior. Portal should be able to send page-view events containing the viewed page URL and potentially additional information about the user.
# Adaptation server [[PERSEUS]], that, upon request, renders a visualization of aggregated user viewing-behaviors collected by the user modeling server. Portal should be able to query [[PERSEUS]] to obtain navigation icons (just like those in figure 1 and 2) for links on a particular portal page (all or a subset). It should also to be able to parse the [[PERSEUS]]'s response and paste these icons on the rendered page.

= Implementation =

== Reporting users's page-views ==
This par is absolutely necessary. Adaptation requires a special kind of user-data processing and cannot be easily implemented as a plugin for Drupal (the basis for Ensemble portal). Portal has to send an HTTP GET request to the [[CUMULATE|user modeling server's]] listening url that contains:
* URL of the page being viewed
* Some form of user identity (e.g. client IP address or portal login). This information is optional but desirable to be able to support a more advanced adaptation such as the one in Figure 2.

== Requesting adaptation ("easy", abandoned) ==
[[Image:Ensemble-embedlet-browser.png|thumb|'''100'''|Figure 3. [[PERSEUS]] embedlet rendered in a browser]]
Adaptation can be provided in a fairly painless manner by inserting '''embed''' HTML tags, just like those [http://www.youtube.com YouTube] offers. [[PERSEUS]]'s embedlet is, in some way, an iframe and [[PERSEUS]] assumes full responsibility to render links' presentation (see Figure 3 for an example of embedlet's rendering in a browser).

The use of these '''embedlets''' requires for the list of links adaptation is provided for to be cached in advance, so that the enumeration of links to be adaptively presented can be done in a concise manner and the invoked embedlet URL does not exceed 255 characters.

Embedlet could work in both group-based mode providing adaptation similar to the one shown in Figure 1, or group-and-individual mode, similar to the one shown in Figure 2.

== Requesting adaptation ("hard", implemented) ==
Here the Content Management System (CMS) has to be more engaged but the solution is more flexible.

The two requirements for the CMS that is has to be able to send a query to [[PERSEUS]] with a list of links to adapt and to be able to parse the response. Concrete format of the request/response is not important, since a special version of the adaptation services would be built for [[Ensemble]].

The following is a working draft for invoking [[PERSEUS]] adaptation (HTTP POST request is a must):
* '''http://adapt2.sis.pitt.edu/pservice/service/ensemble-sn/invoke/ensemble-sn''' is a base URL of PERSEUS social navigation support service for [[Ensemble]]
* HTTP POST should be used to invoke, HTTP GET to access a 'manual' mode for testing
* '''user_id''' - user id login of the logged-in portal user; currently meta user '''meta_ensemble''' should be used
* '''group_id''' group id, id of the portal community; currently meta community '''meta_group''' should be used
* '''uri''' - list of links to adapt; these are the links sent to CUMULATE with reports of user clicks; the list items should be separated by CR (carriage return)
* '''vis_id''' - an id of a visualizer that formats the output by selecting appropriate annotations for the aggregated numerical values; at this point should be equal to '''ensemble-sn-shadeviz'''; alternatively '''/vis/ensemble-sn-shadeviz/''' could be added at the end of the base URL to achieve the same result, so the URL would be '''http://adapt2.sis.pitt.edu/pservice/service/ensemble-sn/invoke/ensemble-sn/vis/ensemble-sn-shadeviz'''
* returned response is a list of annotations - HTML snippets (e.g. img tag and maybe something extra) to be placed in front of the link; the order of annotations is the same as in the request.

== Relevant Links ==
* [http://www.computingportal.org/ Ensemble Computing Portal]
* [[CUMULATE_protocol|Protocol]] for exchanging data with [[CUMULATE]]'s user model, in particular - [[section|CUMULATE_protocol#Protocol_for_reporting_user_activity]] on how to send clicks to the user model
* [http://owaine.dlib.vt.edu/sites/admin/settings/http_request_per_page Module for sending user clicks to CUMULATE settings page] (authentication necessary)

= Progress Blog =
* 13:49, 9 July 2010 (EDT) : Drupal Rules module identified as a way to redirect user clicks to [[CUMULATE]] UMS
* 18:27, 15 July 2010 (EDT) : [[CUMULATE]] configured for accepting test input of Ensemble portal user navigation reports via [[CUMULATE_protocol#Protocol_for_reporting_user_activity|this]] protocol. Preliminary by-hand testing is successful.
* 18:51, 15 July 2010 (EDT) : Preliminary test of Ensemble portal user navigation reports to [[CUMULATE]] successful
* 10:44, 27 July 2010 (EDT) : Drupal module for sending user clicks to [[CUMULATE]] is confirmed to work properly on [http://owaine.dlib.vt.edu/sites/ U. of Oregon test portal]
* 12:05, 29 July 2010 (EDT) Meeting with [http://web.cecs.pdx.edu/~lmd/ Dr. Delcambre] and Elizabeth on moving forward with building the adaptation into the portal. Decided to look further onto Drupal themes and modules (Elizabeth) for ways to paste the calls for adaptations and to create a specialized version of [[PERSEUS]] service for the Portal ([[User:Myudelson|Michael]]).
* 16:43, 31 August 2010 (EDT) : Stub [[PERSEUS]] social navigation service for [[Ensemble]] is created and deployed ([[User:Myudelson|Michael]]).
* 07:06, 3 September 2010 (EDT) : first vanilla working [http://ensemble.cs.pdx.edu/vanilla example] of [[PERSEUS]] adaptation on the portal is deployed by Elizabeth
* 14:13, 23 September 2010 (EDT) : Group-based social adaptation is now fully operational. It is currently deployed on U. of Portland test server. Check [http://ensemble.cs.pdx.edu/vanilla vanilla example].
* 11:14, 28 September 2010 (EDT) : Group-based social adaptation [[PERSEUS]] adaptation is fully operational on the main server, refer to [http://owaine.dlib.vt.edu/sites/cs1 this example].

= Contacts =
* [[User:Myudelson | Michael V. Yudelson]]
* Elizabeth Heinlein

PERSEUS adaptation for Ensemble project

2011-02-15T14:08:04Z

Myudelson: /* Relevant Links */

= About Ensemble =
[[Ensemble]] is a new NSF NSDL Pathways project working to establish a national, distributed digital library for computing education. Our project is building a distributed portal providing access to a broad range of existing educational resources for computing while preserving the collections and their associated curation processes. We want to encourage contribution, use, reuse, review and evaluation of educational materials at multiple levels of granularity and we seek to support the full range of computing education communities including computer science, computer engineering, software engineering, information science, information systems and information technology as well as other areas often called “computing + X” or “X informatics.”

= Overview =
[[Image:Portal-group-social-navigation.png|thumb|'''100'''|Figure 1. Group-based social navigation]]
[[Image:Portal-group-n-individual-social-navigation.png|thumb|'''100'''|Figure 2. Group-based and individual social navigation]]
The main goal of enhancing Ensemble portal (http://www.computingportal.org) with adaptation is to provide an extra value to the rich collection of resources that the portal is currently hosting. Out of a large set of possible adaptation techniques we selected the one that captures the social traits of portal users. Namely, visualizes users' browsing behaviors.

In Figure 1 there is a screenshot of an existing portal page with adaptive navigation cues added. Here green bullets of various shades denote the intensity of the users' click traffic: the darker the shade - the more clicks visits the page has. Here users are not distinguished from each other. Instead, a page-viewing behavior of a community of all portal users is visualized. Figure 2 is a more elaborate example where each individual user is contrasted to the rest of the community. The bullet background represents the whole user community, an the foreground person icon denotes an individual user.

For the adaptation to work, Ensemble portal has to "cooperate" with the adaptation providers. There are two components that are responsible for adaptation.
# User modeling server [[CUMULATE]], that collects user page-viewing behavior. Portal should be able to send page-view events containing the viewed page URL and potentially additional information about the user.
# Adaptation server [[PERSEUS]], that, upon request, renders a visualization of aggregated user viewing-behaviors collected by the user modeling server. Portal should be able to query [[PERSEUS]] to obtain navigation icons (just like those in figure 1 and 2) for links on a particular portal page (all or a subset). It should also to be able to parse the [[PERSEUS]]'s response and paste these icons on the rendered page.

= Implementation =

== Reporting users's page-views ==
This par is absolutely necessary. Adaptation requires a special kind of user-data processing and cannot be easily implemented as a plugin for Drupal (the basis for Ensemble portal). Portal has to send an HTTP GET request to the [[CUMULATE|user modeling server's]] listening url that contains:
* URL of the page being viewed
* Some form of user identity (e.g. client IP address or portal login). This information is optional but desirable to be able to support a more advanced adaptation such as the one in Figure 2.

== Requesting adaptation ("easy", abandoned) ==
[[Image:Ensemble-embedlet-browser.png|thumb|'''100'''|Figure 3. [[PERSEUS]] embedlet rendered in a browser]]
Adaptation can be provided in a fairly painless manner by inserting '''embed''' HTML tags, just like those [http://www.youtube.com YouTube] offers. [[PERSEUS]]'s embedlet is, in some way, an iframe and [[PERSEUS]] assumes full responsibility to render links' presentation (see Figure 3 for an example of embedlet's rendering in a browser).

The use of these '''embedlets''' requires for the list of links adaptation is provided for to be cached in advance, so that the enumeration of links to be adaptively presented can be done in a concise manner and the invoked embedlet URL does not exceed 255 characters.

Embedlet could work in both group-based mode providing adaptation similar to the one shown in Figure 1, or group-and-individual mode, similar to the one shown in Figure 2.

== Requesting adaptation ("hard", implemented) ==
Here the Content Management System (CMS) has to be more engaged but the solution is more flexible.

The two requirements for the CMS that is has to be able to send a query to [[PERSEUS]] with a list of links to adapt and to be able to parse the response. Concrete format of the request/response is not important, since a special version of the adaptation services would be built for [[Ensemble]].

The following is a working draft for invoking [[PERSEUS]] adaptation (HTTP POST request is a must):
* '''http://adapt2.sis.pitt.edu/pservice/service/ensemble-sn/invoke/ensemble-sn''' is a base URL of PERSEUS social navigation support service for [[Ensemble]]
* HTTP POST should be used to invoke, HTTP GET to access a 'manual' mode for testing
* '''user_id''' - user id login of the logged-in portal user; currently meta user '''meta_ensemble''' should be used
* '''group_id''' group id, id of the portal community; currently meta community '''meta_group''' should be used
* '''uri''' - list of links to adapt; these are the links sent to CUMULATE with reports of user clicks; the list items should be separated by CR (carriage return)
* '''vis_id''' - an id of a visualizer that formats the output by selecting appropriate annotations for the aggregated numerical values; at this point should be equal to '''ensemble-sn-shadeviz'''; alternatively '''/vis/ensemble-sn-shadeviz/''' could be added at the end of the base URL to achieve the same result, so the URL would be '''http://adapt2.sis.pitt.edu/pservice/service/ensemble-sn/invoke/ensemble-sn/vis/ensemble-sn-shadeviz'''
* returned response is a list of annotations - HTML snippets (e.g. img tag and maybe something extra) to be placed in front of the link; the order of annotations is the same as in the request.

== Relevant Links ==
* [http://www.computingportal.org/ Ensemble Computing Portal]
* [[CUMULATE_protocol|Protocol]] for exchanging data with [[CUMULATE]]'s user model, in particular - a [[CUMULATE_protocol|section]] on how to send clicks to the user model
* [http://owaine.dlib.vt.edu/sites/admin/settings/http_request_per_page Module for sending user clicks to CUMULATE settings page] (authentication necessary)

= Progress Blog =
* 13:49, 9 July 2010 (EDT) : Drupal Rules module identified as a way to redirect user clicks to [[CUMULATE]] UMS
* 18:27, 15 July 2010 (EDT) : [[CUMULATE]] configured for accepting test input of Ensemble portal user navigation reports via [[CUMULATE_protocol#Protocol_for_reporting_user_activity|this]] protocol. Preliminary by-hand testing is successful.
* 18:51, 15 July 2010 (EDT) : Preliminary test of Ensemble portal user navigation reports to [[CUMULATE]] successful
* 10:44, 27 July 2010 (EDT) : Drupal module for sending user clicks to [[CUMULATE]] is confirmed to work properly on [http://owaine.dlib.vt.edu/sites/ U. of Oregon test portal]
* 12:05, 29 July 2010 (EDT) Meeting with [http://web.cecs.pdx.edu/~lmd/ Dr. Delcambre] and Elizabeth on moving forward with building the adaptation into the portal. Decided to look further onto Drupal themes and modules (Elizabeth) for ways to paste the calls for adaptations and to create a specialized version of [[PERSEUS]] service for the Portal ([[User:Myudelson|Michael]]).
* 16:43, 31 August 2010 (EDT) : Stub [[PERSEUS]] social navigation service for [[Ensemble]] is created and deployed ([[User:Myudelson|Michael]]).
* 07:06, 3 September 2010 (EDT) : first vanilla working [http://ensemble.cs.pdx.edu/vanilla example] of [[PERSEUS]] adaptation on the portal is deployed by Elizabeth
* 14:13, 23 September 2010 (EDT) : Group-based social adaptation is now fully operational. It is currently deployed on U. of Portland test server. Check [http://ensemble.cs.pdx.edu/vanilla vanilla example].
* 11:14, 28 September 2010 (EDT) : Group-based social adaptation [[PERSEUS]] adaptation is fully operational on the main server, refer to [http://owaine.dlib.vt.edu/sites/cs1 this example].

= Contacts =
* [[User:Myudelson | Michael V. Yudelson]]
* Elizabeth Heinlein

PERSEUS adaptation for Ensemble project

2011-02-15T14:07:48Z

Myudelson: /* Relevant Links */

= About Ensemble =
[[Ensemble]] is a new NSF NSDL Pathways project working to establish a national, distributed digital library for computing education. Our project is building a distributed portal providing access to a broad range of existing educational resources for computing while preserving the collections and their associated curation processes. We want to encourage contribution, use, reuse, review and evaluation of educational materials at multiple levels of granularity and we seek to support the full range of computing education communities including computer science, computer engineering, software engineering, information science, information systems and information technology as well as other areas often called “computing + X” or “X informatics.”

= Overview =
[[Image:Portal-group-social-navigation.png|thumb|'''100'''|Figure 1. Group-based social navigation]]
[[Image:Portal-group-n-individual-social-navigation.png|thumb|'''100'''|Figure 2. Group-based and individual social navigation]]
The main goal of enhancing Ensemble portal (http://www.computingportal.org) with adaptation is to provide an extra value to the rich collection of resources that the portal is currently hosting. Out of a large set of possible adaptation techniques we selected the one that captures the social traits of portal users. Namely, visualizes users' browsing behaviors.

In Figure 1 there is a screenshot of an existing portal page with adaptive navigation cues added. Here green bullets of various shades denote the intensity of the users' click traffic: the darker the shade - the more clicks visits the page has. Here users are not distinguished from each other. Instead, a page-viewing behavior of a community of all portal users is visualized. Figure 2 is a more elaborate example where each individual user is contrasted to the rest of the community. The bullet background represents the whole user community, an the foreground person icon denotes an individual user.

For the adaptation to work, Ensemble portal has to "cooperate" with the adaptation providers. There are two components that are responsible for adaptation.
# User modeling server [[CUMULATE]], that collects user page-viewing behavior. Portal should be able to send page-view events containing the viewed page URL and potentially additional information about the user.
# Adaptation server [[PERSEUS]], that, upon request, renders a visualization of aggregated user viewing-behaviors collected by the user modeling server. Portal should be able to query [[PERSEUS]] to obtain navigation icons (just like those in figure 1 and 2) for links on a particular portal page (all or a subset). It should also to be able to parse the [[PERSEUS]]'s response and paste these icons on the rendered page.

= Implementation =

== Reporting users's page-views ==
This par is absolutely necessary. Adaptation requires a special kind of user-data processing and cannot be easily implemented as a plugin for Drupal (the basis for Ensemble portal). Portal has to send an HTTP GET request to the [[CUMULATE|user modeling server's]] listening url that contains:
* URL of the page being viewed
* Some form of user identity (e.g. client IP address or portal login). This information is optional but desirable to be able to support a more advanced adaptation such as the one in Figure 2.

== Requesting adaptation ("easy", abandoned) ==
[[Image:Ensemble-embedlet-browser.png|thumb|'''100'''|Figure 3. [[PERSEUS]] embedlet rendered in a browser]]
Adaptation can be provided in a fairly painless manner by inserting '''embed''' HTML tags, just like those [http://www.youtube.com YouTube] offers. [[PERSEUS]]'s embedlet is, in some way, an iframe and [[PERSEUS]] assumes full responsibility to render links' presentation (see Figure 3 for an example of embedlet's rendering in a browser).

The use of these '''embedlets''' requires for the list of links adaptation is provided for to be cached in advance, so that the enumeration of links to be adaptively presented can be done in a concise manner and the invoked embedlet URL does not exceed 255 characters.

Embedlet could work in both group-based mode providing adaptation similar to the one shown in Figure 1, or group-and-individual mode, similar to the one shown in Figure 2.

== Requesting adaptation ("hard", implemented) ==
Here the Content Management System (CMS) has to be more engaged but the solution is more flexible.

The two requirements for the CMS that is has to be able to send a query to [[PERSEUS]] with a list of links to adapt and to be able to parse the response. Concrete format of the request/response is not important, since a special version of the adaptation services would be built for [[Ensemble]].

The following is a working draft for invoking [[PERSEUS]] adaptation (HTTP POST request is a must):
* '''http://adapt2.sis.pitt.edu/pservice/service/ensemble-sn/invoke/ensemble-sn''' is a base URL of PERSEUS social navigation support service for [[Ensemble]]
* HTTP POST should be used to invoke, HTTP GET to access a 'manual' mode for testing
* '''user_id''' - user id login of the logged-in portal user; currently meta user '''meta_ensemble''' should be used
* '''group_id''' group id, id of the portal community; currently meta community '''meta_group''' should be used
* '''uri''' - list of links to adapt; these are the links sent to CUMULATE with reports of user clicks; the list items should be separated by CR (carriage return)
* '''vis_id''' - an id of a visualizer that formats the output by selecting appropriate annotations for the aggregated numerical values; at this point should be equal to '''ensemble-sn-shadeviz'''; alternatively '''/vis/ensemble-sn-shadeviz/''' could be added at the end of the base URL to achieve the same result, so the URL would be '''http://adapt2.sis.pitt.edu/pservice/service/ensemble-sn/invoke/ensemble-sn/vis/ensemble-sn-shadeviz'''
* returned response is a list of annotations - HTML snippets (e.g. img tag and maybe something extra) to be placed in front of the link; the order of annotations is the same as in the request.

== Relevant Links ==
* [http://www.computingportal.org/ Ensemble Computing Portal]
* [[CUMULATE_protocol|Protocol]] for exchanging data with [[CUMULATE]]'s user model, in particular - a [[CUMULATE_protocol#Protocol_for_reporting_user_activity | section]] on how to send clicks to the user model
* [http://owaine.dlib.vt.edu/sites/admin/settings/http_request_per_page Module for sending user clicks to CUMULATE settings page] (authentication necessary)

= Progress Blog =
* 13:49, 9 July 2010 (EDT) : Drupal Rules module identified as a way to redirect user clicks to [[CUMULATE]] UMS
* 18:27, 15 July 2010 (EDT) : [[CUMULATE]] configured for accepting test input of Ensemble portal user navigation reports via [[CUMULATE_protocol#Protocol_for_reporting_user_activity|this]] protocol. Preliminary by-hand testing is successful.
* 18:51, 15 July 2010 (EDT) : Preliminary test of Ensemble portal user navigation reports to [[CUMULATE]] successful
* 10:44, 27 July 2010 (EDT) : Drupal module for sending user clicks to [[CUMULATE]] is confirmed to work properly on [http://owaine.dlib.vt.edu/sites/ U. of Oregon test portal]
* 12:05, 29 July 2010 (EDT) Meeting with [http://web.cecs.pdx.edu/~lmd/ Dr. Delcambre] and Elizabeth on moving forward with building the adaptation into the portal. Decided to look further onto Drupal themes and modules (Elizabeth) for ways to paste the calls for adaptations and to create a specialized version of [[PERSEUS]] service for the Portal ([[User:Myudelson|Michael]]).
* 16:43, 31 August 2010 (EDT) : Stub [[PERSEUS]] social navigation service for [[Ensemble]] is created and deployed ([[User:Myudelson|Michael]]).
* 07:06, 3 September 2010 (EDT) : first vanilla working [http://ensemble.cs.pdx.edu/vanilla example] of [[PERSEUS]] adaptation on the portal is deployed by Elizabeth
* 14:13, 23 September 2010 (EDT) : Group-based social adaptation is now fully operational. It is currently deployed on U. of Portland test server. Check [http://ensemble.cs.pdx.edu/vanilla vanilla example].
* 11:14, 28 September 2010 (EDT) : Group-based social adaptation [[PERSEUS]] adaptation is fully operational on the main server, refer to [http://owaine.dlib.vt.edu/sites/cs1 this example].

= Contacts =
* [[User:Myudelson | Michael V. Yudelson]]
* Elizabeth Heinlein

PERSEUS adaptation for Ensemble project

2011-02-15T14:07:30Z

Myudelson: /* Relevant Links */

= About Ensemble =
[[Ensemble]] is a new NSF NSDL Pathways project working to establish a national, distributed digital library for computing education. Our project is building a distributed portal providing access to a broad range of existing educational resources for computing while preserving the collections and their associated curation processes. We want to encourage contribution, use, reuse, review and evaluation of educational materials at multiple levels of granularity and we seek to support the full range of computing education communities including computer science, computer engineering, software engineering, information science, information systems and information technology as well as other areas often called “computing + X” or “X informatics.”

= Overview =
[[Image:Portal-group-social-navigation.png|thumb|'''100'''|Figure 1. Group-based social navigation]]
[[Image:Portal-group-n-individual-social-navigation.png|thumb|'''100'''|Figure 2. Group-based and individual social navigation]]
The main goal of enhancing Ensemble portal (http://www.computingportal.org) with adaptation is to provide an extra value to the rich collection of resources that the portal is currently hosting. Out of a large set of possible adaptation techniques we selected the one that captures the social traits of portal users. Namely, visualizes users' browsing behaviors.

In Figure 1 there is a screenshot of an existing portal page with adaptive navigation cues added. Here green bullets of various shades denote the intensity of the users' click traffic: the darker the shade - the more clicks visits the page has. Here users are not distinguished from each other. Instead, a page-viewing behavior of a community of all portal users is visualized. Figure 2 is a more elaborate example where each individual user is contrasted to the rest of the community. The bullet background represents the whole user community, an the foreground person icon denotes an individual user.

For the adaptation to work, Ensemble portal has to "cooperate" with the adaptation providers. There are two components that are responsible for adaptation.
# User modeling server [[CUMULATE]], that collects user page-viewing behavior. Portal should be able to send page-view events containing the viewed page URL and potentially additional information about the user.
# Adaptation server [[PERSEUS]], that, upon request, renders a visualization of aggregated user viewing-behaviors collected by the user modeling server. Portal should be able to query [[PERSEUS]] to obtain navigation icons (just like those in figure 1 and 2) for links on a particular portal page (all or a subset). It should also to be able to parse the [[PERSEUS]]'s response and paste these icons on the rendered page.

= Implementation =

== Reporting users's page-views ==
This par is absolutely necessary. Adaptation requires a special kind of user-data processing and cannot be easily implemented as a plugin for Drupal (the basis for Ensemble portal). Portal has to send an HTTP GET request to the [[CUMULATE|user modeling server's]] listening url that contains:
* URL of the page being viewed
* Some form of user identity (e.g. client IP address or portal login). This information is optional but desirable to be able to support a more advanced adaptation such as the one in Figure 2.

== Requesting adaptation ("easy", abandoned) ==
[[Image:Ensemble-embedlet-browser.png|thumb|'''100'''|Figure 3. [[PERSEUS]] embedlet rendered in a browser]]
Adaptation can be provided in a fairly painless manner by inserting '''embed''' HTML tags, just like those [http://www.youtube.com YouTube] offers. [[PERSEUS]]'s embedlet is, in some way, an iframe and [[PERSEUS]] assumes full responsibility to render links' presentation (see Figure 3 for an example of embedlet's rendering in a browser).

The use of these '''embedlets''' requires for the list of links adaptation is provided for to be cached in advance, so that the enumeration of links to be adaptively presented can be done in a concise manner and the invoked embedlet URL does not exceed 255 characters.

Embedlet could work in both group-based mode providing adaptation similar to the one shown in Figure 1, or group-and-individual mode, similar to the one shown in Figure 2.

== Requesting adaptation ("hard", implemented) ==
Here the Content Management System (CMS) has to be more engaged but the solution is more flexible.

The two requirements for the CMS that is has to be able to send a query to [[PERSEUS]] with a list of links to adapt and to be able to parse the response. Concrete format of the request/response is not important, since a special version of the adaptation services would be built for [[Ensemble]].

The following is a working draft for invoking [[PERSEUS]] adaptation (HTTP POST request is a must):
* '''http://adapt2.sis.pitt.edu/pservice/service/ensemble-sn/invoke/ensemble-sn''' is a base URL of PERSEUS social navigation support service for [[Ensemble]]
* HTTP POST should be used to invoke, HTTP GET to access a 'manual' mode for testing
* '''user_id''' - user id login of the logged-in portal user; currently meta user '''meta_ensemble''' should be used
* '''group_id''' group id, id of the portal community; currently meta community '''meta_group''' should be used
* '''uri''' - list of links to adapt; these are the links sent to CUMULATE with reports of user clicks; the list items should be separated by CR (carriage return)
* '''vis_id''' - an id of a visualizer that formats the output by selecting appropriate annotations for the aggregated numerical values; at this point should be equal to '''ensemble-sn-shadeviz'''; alternatively '''/vis/ensemble-sn-shadeviz/''' could be added at the end of the base URL to achieve the same result, so the URL would be '''http://adapt2.sis.pitt.edu/pservice/service/ensemble-sn/invoke/ensemble-sn/vis/ensemble-sn-shadeviz'''
* returned response is a list of annotations - HTML snippets (e.g. img tag and maybe something extra) to be placed in front of the link; the order of annotations is the same as in the request.

== Relevant Links ==
* [http://www.computingportal.org/ Ensemble Computing Portal]
* [[CUMULATE_protocol|Protocol]] for exchanging data with [[CUMULATE]]'s user model, in particular - a[[CUMULATE_protocol#Protocol_for_reporting_user_activity|section]] on how to send clicks to the user model
* [http://owaine.dlib.vt.edu/sites/admin/settings/http_request_per_page Module for sending user clicks to CUMULATE settings page] (authentication necessary)

= Progress Blog =
* 13:49, 9 July 2010 (EDT) : Drupal Rules module identified as a way to redirect user clicks to [[CUMULATE]] UMS
* 18:27, 15 July 2010 (EDT) : [[CUMULATE]] configured for accepting test input of Ensemble portal user navigation reports via [[CUMULATE_protocol#Protocol_for_reporting_user_activity|this]] protocol. Preliminary by-hand testing is successful.
* 18:51, 15 July 2010 (EDT) : Preliminary test of Ensemble portal user navigation reports to [[CUMULATE]] successful
* 10:44, 27 July 2010 (EDT) : Drupal module for sending user clicks to [[CUMULATE]] is confirmed to work properly on [http://owaine.dlib.vt.edu/sites/ U. of Oregon test portal]
* 12:05, 29 July 2010 (EDT) Meeting with [http://web.cecs.pdx.edu/~lmd/ Dr. Delcambre] and Elizabeth on moving forward with building the adaptation into the portal. Decided to look further onto Drupal themes and modules (Elizabeth) for ways to paste the calls for adaptations and to create a specialized version of [[PERSEUS]] service for the Portal ([[User:Myudelson|Michael]]).
* 16:43, 31 August 2010 (EDT) : Stub [[PERSEUS]] social navigation service for [[Ensemble]] is created and deployed ([[User:Myudelson|Michael]]).
* 07:06, 3 September 2010 (EDT) : first vanilla working [http://ensemble.cs.pdx.edu/vanilla example] of [[PERSEUS]] adaptation on the portal is deployed by Elizabeth
* 14:13, 23 September 2010 (EDT) : Group-based social adaptation is now fully operational. It is currently deployed on U. of Portland test server. Check [http://ensemble.cs.pdx.edu/vanilla vanilla example].
* 11:14, 28 September 2010 (EDT) : Group-based social adaptation [[PERSEUS]] adaptation is fully operational on the main server, refer to [http://owaine.dlib.vt.edu/sites/cs1 this example].

= Contacts =
* [[User:Myudelson | Michael V. Yudelson]]
* Elizabeth Heinlein

PERSEUS adaptation for Ensemble project

2011-02-15T14:01:43Z

Myudelson: /* Requesting adaptation ("hard") */

= About Ensemble =
[[Ensemble]] is a new NSF NSDL Pathways project working to establish a national, distributed digital library for computing education. Our project is building a distributed portal providing access to a broad range of existing educational resources for computing while preserving the collections and their associated curation processes. We want to encourage contribution, use, reuse, review and evaluation of educational materials at multiple levels of granularity and we seek to support the full range of computing education communities including computer science, computer engineering, software engineering, information science, information systems and information technology as well as other areas often called “computing + X” or “X informatics.”

= Overview =
[[Image:Portal-group-social-navigation.png|thumb|'''100'''|Figure 1. Group-based social navigation]]
[[Image:Portal-group-n-individual-social-navigation.png|thumb|'''100'''|Figure 2. Group-based and individual social navigation]]
The main goal of enhancing Ensemble portal (http://www.computingportal.org) with adaptation is to provide an extra value to the rich collection of resources that the portal is currently hosting. Out of a large set of possible adaptation techniques we selected the one that captures the social traits of portal users. Namely, visualizes users' browsing behaviors.

In Figure 1 there is a screenshot of an existing portal page with adaptive navigation cues added. Here green bullets of various shades denote the intensity of the users' click traffic: the darker the shade - the more clicks visits the page has. Here users are not distinguished from each other. Instead, a page-viewing behavior of a community of all portal users is visualized. Figure 2 is a more elaborate example where each individual user is contrasted to the rest of the community. The bullet background represents the whole user community, an the foreground person icon denotes an individual user.

For the adaptation to work, Ensemble portal has to "cooperate" with the adaptation providers. There are two components that are responsible for adaptation.
# User modeling server [[CUMULATE]], that collects user page-viewing behavior. Portal should be able to send page-view events containing the viewed page URL and potentially additional information about the user.
# Adaptation server [[PERSEUS]], that, upon request, renders a visualization of aggregated user viewing-behaviors collected by the user modeling server. Portal should be able to query [[PERSEUS]] to obtain navigation icons (just like those in figure 1 and 2) for links on a particular portal page (all or a subset). It should also to be able to parse the [[PERSEUS]]'s response and paste these icons on the rendered page.

= Implementation =

== Reporting users's page-views ==
This par is absolutely necessary. Adaptation requires a special kind of user-data processing and cannot be easily implemented as a plugin for Drupal (the basis for Ensemble portal). Portal has to send an HTTP GET request to the [[CUMULATE|user modeling server's]] listening url that contains:
* URL of the page being viewed
* Some form of user identity (e.g. client IP address or portal login). This information is optional but desirable to be able to support a more advanced adaptation such as the one in Figure 2.

== Requesting adaptation ("easy", abandoned) ==
[[Image:Ensemble-embedlet-browser.png|thumb|'''100'''|Figure 3. [[PERSEUS]] embedlet rendered in a browser]]
Adaptation can be provided in a fairly painless manner by inserting '''embed''' HTML tags, just like those [http://www.youtube.com YouTube] offers. [[PERSEUS]]'s embedlet is, in some way, an iframe and [[PERSEUS]] assumes full responsibility to render links' presentation (see Figure 3 for an example of embedlet's rendering in a browser).

The use of these '''embedlets''' requires for the list of links adaptation is provided for to be cached in advance, so that the enumeration of links to be adaptively presented can be done in a concise manner and the invoked embedlet URL does not exceed 255 characters.

Embedlet could work in both group-based mode providing adaptation similar to the one shown in Figure 1, or group-and-individual mode, similar to the one shown in Figure 2.

== Requesting adaptation ("hard", implemented) ==
Here the Content Management System (CMS) has to be more engaged but the solution is more flexible.

The two requirements for the CMS that is has to be able to send a query to [[PERSEUS]] with a list of links to adapt and to be able to parse the response. Concrete format of the request/response is not important, since a special version of the adaptation services would be built for [[Ensemble]].

The following is a working draft for invoking [[PERSEUS]] adaptation (HTTP POST request is a must):
* '''http://adapt2.sis.pitt.edu/pservice/service/ensemble-sn/invoke/ensemble-sn''' is a base URL of PERSEUS social navigation support service for [[Ensemble]]
* HTTP POST should be used to invoke, HTTP GET to access a 'manual' mode for testing
* '''user_id''' - user id login of the logged-in portal user; currently meta user '''meta_ensemble''' should be used
* '''group_id''' group id, id of the portal community; currently meta community '''meta_group''' should be used
* '''uri''' - list of links to adapt; these are the links sent to CUMULATE with reports of user clicks; the list items should be separated by CR (carriage return)
* '''vis_id''' - an id of a visualizer that formats the output by selecting appropriate annotations for the aggregated numerical values; at this point should be equal to '''ensemble-sn-shadeviz'''; alternatively '''/vis/ensemble-sn-shadeviz/''' could be added at the end of the base URL to achieve the same result, so the URL would be '''http://adapt2.sis.pitt.edu/pservice/service/ensemble-sn/invoke/ensemble-sn/vis/ensemble-sn-shadeviz'''
* returned response is a list of annotations - HTML snippets (e.g. img tag and maybe something extra) to be placed in front of the link; the order of annotations is the same as in the request.

== Relevant Links ==
* [http://www.computingportal.org/ Ensemble Computing Portal]
* [[CUMULATE_protocol|Protocol]] for exchanging data with [[CUMULATE]]'s user model
* [http://owaine.dlib.vt.edu/sites/admin/settings/http_request_per_page Module for sending user clicks to CUMULATE settings page] (authentication necessary)

= Progress Blog =
* 13:49, 9 July 2010 (EDT) : Drupal Rules module identified as a way to redirect user clicks to [[CUMULATE]] UMS
* 18:27, 15 July 2010 (EDT) : [[CUMULATE]] configured for accepting test input of Ensemble portal user navigation reports via [[CUMULATE_protocol#Protocol_for_reporting_user_activity|this]] protocol. Preliminary by-hand testing is successful.
* 18:51, 15 July 2010 (EDT) : Preliminary test of Ensemble portal user navigation reports to [[CUMULATE]] successful
* 10:44, 27 July 2010 (EDT) : Drupal module for sending user clicks to [[CUMULATE]] is confirmed to work properly on [http://owaine.dlib.vt.edu/sites/ U. of Oregon test portal]
* 12:05, 29 July 2010 (EDT) Meeting with [http://web.cecs.pdx.edu/~lmd/ Dr. Delcambre] and Elizabeth on moving forward with building the adaptation into the portal. Decided to look further onto Drupal themes and modules (Elizabeth) for ways to paste the calls for adaptations and to create a specialized version of [[PERSEUS]] service for the Portal ([[User:Myudelson|Michael]]).
* 16:43, 31 August 2010 (EDT) : Stub [[PERSEUS]] social navigation service for [[Ensemble]] is created and deployed ([[User:Myudelson|Michael]]).
* 07:06, 3 September 2010 (EDT) : first vanilla working [http://ensemble.cs.pdx.edu/vanilla example] of [[PERSEUS]] adaptation on the portal is deployed by Elizabeth
* 14:13, 23 September 2010 (EDT) : Group-based social adaptation is now fully operational. It is currently deployed on U. of Portland test server. Check [http://ensemble.cs.pdx.edu/vanilla vanilla example].
* 11:14, 28 September 2010 (EDT) : Group-based social adaptation [[PERSEUS]] adaptation is fully operational on the main server, refer to [http://owaine.dlib.vt.edu/sites/cs1 this example].

= Contacts =
* [[User:Myudelson | Michael V. Yudelson]]
* Elizabeth Heinlein

PERSEUS adaptation for Ensemble project

2011-02-15T14:01:33Z

Myudelson: /* Requesting adaptation ("easy") */

= About Ensemble =
[[Ensemble]] is a new NSF NSDL Pathways project working to establish a national, distributed digital library for computing education. Our project is building a distributed portal providing access to a broad range of existing educational resources for computing while preserving the collections and their associated curation processes. We want to encourage contribution, use, reuse, review and evaluation of educational materials at multiple levels of granularity and we seek to support the full range of computing education communities including computer science, computer engineering, software engineering, information science, information systems and information technology as well as other areas often called “computing + X” or “X informatics.”

= Overview =
[[Image:Portal-group-social-navigation.png|thumb|'''100'''|Figure 1. Group-based social navigation]]
[[Image:Portal-group-n-individual-social-navigation.png|thumb|'''100'''|Figure 2. Group-based and individual social navigation]]
The main goal of enhancing Ensemble portal (http://www.computingportal.org) with adaptation is to provide an extra value to the rich collection of resources that the portal is currently hosting. Out of a large set of possible adaptation techniques we selected the one that captures the social traits of portal users. Namely, visualizes users' browsing behaviors.

In Figure 1 there is a screenshot of an existing portal page with adaptive navigation cues added. Here green bullets of various shades denote the intensity of the users' click traffic: the darker the shade - the more clicks visits the page has. Here users are not distinguished from each other. Instead, a page-viewing behavior of a community of all portal users is visualized. Figure 2 is a more elaborate example where each individual user is contrasted to the rest of the community. The bullet background represents the whole user community, an the foreground person icon denotes an individual user.

For the adaptation to work, Ensemble portal has to "cooperate" with the adaptation providers. There are two components that are responsible for adaptation.
# User modeling server [[CUMULATE]], that collects user page-viewing behavior. Portal should be able to send page-view events containing the viewed page URL and potentially additional information about the user.
# Adaptation server [[PERSEUS]], that, upon request, renders a visualization of aggregated user viewing-behaviors collected by the user modeling server. Portal should be able to query [[PERSEUS]] to obtain navigation icons (just like those in figure 1 and 2) for links on a particular portal page (all or a subset). It should also to be able to parse the [[PERSEUS]]'s response and paste these icons on the rendered page.

= Implementation =

== Reporting users's page-views ==
This par is absolutely necessary. Adaptation requires a special kind of user-data processing and cannot be easily implemented as a plugin for Drupal (the basis for Ensemble portal). Portal has to send an HTTP GET request to the [[CUMULATE|user modeling server's]] listening url that contains:
* URL of the page being viewed
* Some form of user identity (e.g. client IP address or portal login). This information is optional but desirable to be able to support a more advanced adaptation such as the one in Figure 2.

== Requesting adaptation ("easy", abandoned) ==
[[Image:Ensemble-embedlet-browser.png|thumb|'''100'''|Figure 3. [[PERSEUS]] embedlet rendered in a browser]]
Adaptation can be provided in a fairly painless manner by inserting '''embed''' HTML tags, just like those [http://www.youtube.com YouTube] offers. [[PERSEUS]]'s embedlet is, in some way, an iframe and [[PERSEUS]] assumes full responsibility to render links' presentation (see Figure 3 for an example of embedlet's rendering in a browser).

The use of these '''embedlets''' requires for the list of links adaptation is provided for to be cached in advance, so that the enumeration of links to be adaptively presented can be done in a concise manner and the invoked embedlet URL does not exceed 255 characters.

Embedlet could work in both group-based mode providing adaptation similar to the one shown in Figure 1, or group-and-individual mode, similar to the one shown in Figure 2.

== Requesting adaptation ("hard") ==
Here the Content Management System (CMS) has to be more engaged but the solution is more flexible.

The two requirements for the CMS that is has to be able to send a query to [[PERSEUS]] with a list of links to adapt and to be able to parse the response. Concrete format of the request/response is not important, since a special version of the adaptation services would be built for [[Ensemble]].

The following is a working draft for invoking [[PERSEUS]] adaptation (HTTP POST request is a must):
* '''http://adapt2.sis.pitt.edu/pservice/service/ensemble-sn/invoke/ensemble-sn''' is a base URL of PERSEUS social navigation support service for [[Ensemble]]
* HTTP POST should be used to invoke, HTTP GET to access a 'manual' mode for testing
* '''user_id''' - user id login of the logged-in portal user; currently meta user '''meta_ensemble''' should be used
* '''group_id''' group id, id of the portal community; currently meta community '''meta_group''' should be used
* '''uri''' - list of links to adapt; these are the links sent to CUMULATE with reports of user clicks; the list items should be separated by CR (carriage return)
* '''vis_id''' - an id of a visualizer that formats the output by selecting appropriate annotations for the aggregated numerical values; at this point should be equal to '''ensemble-sn-shadeviz'''; alternatively '''/vis/ensemble-sn-shadeviz/''' could be added at the end of the base URL to achieve the same result, so the URL would be '''http://adapt2.sis.pitt.edu/pservice/service/ensemble-sn/invoke/ensemble-sn/vis/ensemble-sn-shadeviz'''
* returned response is a list of annotations - HTML snippets (e.g. img tag and maybe something extra) to be placed in front of the link; the order of annotations is the same as in the request.

== Relevant Links ==
* [http://www.computingportal.org/ Ensemble Computing Portal]
* [[CUMULATE_protocol|Protocol]] for exchanging data with [[CUMULATE]]'s user model
* [http://owaine.dlib.vt.edu/sites/admin/settings/http_request_per_page Module for sending user clicks to CUMULATE settings page] (authentication necessary)

= Progress Blog =
* 13:49, 9 July 2010 (EDT) : Drupal Rules module identified as a way to redirect user clicks to [[CUMULATE]] UMS
* 18:27, 15 July 2010 (EDT) : [[CUMULATE]] configured for accepting test input of Ensemble portal user navigation reports via [[CUMULATE_protocol#Protocol_for_reporting_user_activity|this]] protocol. Preliminary by-hand testing is successful.
* 18:51, 15 July 2010 (EDT) : Preliminary test of Ensemble portal user navigation reports to [[CUMULATE]] successful
* 10:44, 27 July 2010 (EDT) : Drupal module for sending user clicks to [[CUMULATE]] is confirmed to work properly on [http://owaine.dlib.vt.edu/sites/ U. of Oregon test portal]
* 12:05, 29 July 2010 (EDT) Meeting with [http://web.cecs.pdx.edu/~lmd/ Dr. Delcambre] and Elizabeth on moving forward with building the adaptation into the portal. Decided to look further onto Drupal themes and modules (Elizabeth) for ways to paste the calls for adaptations and to create a specialized version of [[PERSEUS]] service for the Portal ([[User:Myudelson|Michael]]).
* 16:43, 31 August 2010 (EDT) : Stub [[PERSEUS]] social navigation service for [[Ensemble]] is created and deployed ([[User:Myudelson|Michael]]).
* 07:06, 3 September 2010 (EDT) : first vanilla working [http://ensemble.cs.pdx.edu/vanilla example] of [[PERSEUS]] adaptation on the portal is deployed by Elizabeth
* 14:13, 23 September 2010 (EDT) : Group-based social adaptation is now fully operational. It is currently deployed on U. of Portland test server. Check [http://ensemble.cs.pdx.edu/vanilla vanilla example].
* 11:14, 28 September 2010 (EDT) : Group-based social adaptation [[PERSEUS]] adaptation is fully operational on the main server, refer to [http://owaine.dlib.vt.edu/sites/cs1 this example].

= Contacts =
* [[User:Myudelson | Michael V. Yudelson]]
* Elizabeth Heinlein

PAWS

2010-12-24T01:01:32Z

Myudelson: /* Most Recent News */

== About PAWS ==
Personalized Adaptive Web Systems Lab was established in 2004 with support from National Science Foundation and School of Information Sciences. The goal of the PAWS Lab is development and evaluation of innovative user- and group-adaptive Web-based technologies, systems, and architectures. The Lab currently explores a range of user modeling, adaptation and personalization technologies. The work of the Lab is supported by NSF and DARPA funding.

== Most Recent News ==
* [[User:Myudelson | Michael Yudelson's]] ETD has been approved by the School of Information Sciences ([[News#2010-12-23|details]])
* [[User:Myudelson | Michael Yudelson's]] defended his Ph. D.Thesis: ''Providing Service-Based Personalization In An Adaptive Hypermedia System'' ([[News#2010-09-17|details]])
* [[User:peterb | Peter Brusilovsky]] received NSF grant to work on ''Modeling and Visualization of Latent Communities'' ([[News#2010-09-15|details]])
* [[User:jahn | Jae-wook's]] defended his Ph. D.Thesis: ''Adaptive Visualization for Focused Personalized Information Retrieval'' ([[News#2010-09-08|details]])
* [[User:peterb | Peter Brusilovsky]] and Jung Sun Oh received NSF grant to work on ''Personalization and social networking for short-term communities'' ([[News#2010-09-01|details]])
Go to [[News | News Page]]

== Try PAWS Tools at our Community Portal ==

Go to [http://adapt2.sis.pitt.edu/kt Knowledge Tree] portal and [http://adapt2.sis.pitt.edu/kt/register.html create trial account] to try our tools.

[http://www.sis.pitt.edu/~cagent/ CourseAgent]: Share evaluations of IS graduate courses at Pitt and plan your career.

[http://washington.sis.pitt.edu/comet/ Comet]: Share, tag, recommend and schedule interesting talks in Pittsburgh.

[http://eventur.us/ Eventur]: Share and schedule cultural events in Pittsburgh.

[http://www.computingportal.org/ Ensemble]: This cross-university collaborative effort aims to bring together the global community of computing educators around a growing set of content collections with high-quality educational resources.

[http://amber.exp.sis.pitt.edu/yournews/ YourNews]: This is a personalized RSS news access portal with several levels of user modeling and feed recommendation. Read your news in a personalized way!

If you are a researcher and would like to quickly try our adaptation tools, create the trial account (link above) and proceed [http://adapt2.sis.pitt.edu/cbum/ here].

== PAWS Lab Contact Information ==
Information Sciences Building, Rm. 2A04 
135 North Bellefield Avenue 
Pittsburgh, PA 15213, USA 
Tel: +1(412)624-9437

News

2010-12-24T01:00:41Z

Myudelson:

__NOTOC__

==== 2010-12-23 :: [[User:Myudelson | Michael Yudelson's]] ETD has been approved by the School of Information Sciences ====
The electronic version of [[User:Myudelson | Michael Yudelson's]] dissertation has been approved by the School of Information Sciences. ETD is accessible worldwide from the online library catalog of the University of Pittsburgh ([http://etd.library.pitt.edu/ETD/available/etd-10132010-092137/ link]).

==== 2010-09-17 :: [[User:Myudelson | Michael Yudelson's]] Thesis Defence: Providing Service-Based Personalization In An Adaptive Hypermedia System ====
The dissertation proposes a novel way of speeding the development of new adaptive hypermedia systems. The gist of the approach is to extract the adaptation functionality out of the adaptive hypermedia system, encapsulate it into a standalone system, and offer adaptation as a service to the client applications. Such a standalone adaptation provider reduces the development of adaptation functionality to configuration and compliance and as a result creates new adaptive systems faster and helps serve larger user populations with adaptively accessible content. [[http://washington.sis.pitt.edu/comet/presentColloquium.do?col_id=777 details]]

==== 2010-09-15 ::[[User:peterb | Peter Brusilovsky]] received NSF grant to work on ''Modeling and Visualization of Latent Communities'' ====
This EAGER grant will allow us to investigate how to model and visualize latent communities – those groups of people who form communities based on their similar interests. This work will consider how to elicit latent communities from various kinds of data about individuals available in the modern social Web and deliver the results in a manner suitable for interactive exploration through interactive visualizations. This will be one of the first attempts to use a variety of social Web data and approaches to community modeling. [[http://www.nsf.gov/awardsearch/showAward.do?AwardNumber=1059577 details]]

==== 2010-09-08 :: [[User:jahn | Jae-wook's]] Thesis Defence: Adaptive Visualization for Focused Personalized Information Retrieval ====
Jae-wook Ahn's dissertation proposes to incorporate interactive visualization into personalized search in order to overcome the limitation. By combining the personalized search and the interactive visualization, we expect our approach will be able to help users to better explore the information space and locate relevant information more efficiently. [[http://washington.sis.pitt.edu/comet/presentColloquium.do?col_id=764 details]]

==== 2010-09-01 :: [[User:peterb | Peter Brusilovsky]] and Jung Sun Oh received NSF grant to work on ''Personalization and social networking for short-term communities'' ====
This one-year grant will support a project exploring personalization and social networking for short-term communities. Using academic research conferences as a test bed, our team will explore new methods to leverage information about user interests (available from multiple external resources) and develop techniques to facilitate use of existing social technologies. [[http://www.nsf.gov/awardsearch/showAward.do?AwardNumber=1052768 details]]

==== 2010-08-15 :: SIGWeb Newsletter published an interview with [[User:peterb | Peter Brusilovsky]] ====
The Summer 2010 issue of SIGWeb Newsletter (a magazine of ACM Special Interest Group on Hypertext and the Web) published an [http://dx.doi.org/10.1145/1796390.1796393 interview with Peter Brusilovsky]. The interview provides some personal view on research project performed at PAWS.

==== 2010-07-01 :: [[User:jahn | Jae-wook]] has received Computing Inovation Fellowship ====
Jae-wook Ahn was chosen as a [http://cifellows.org CIFellow] (Computing Innovation Fellow) supported by the Computing Community Consortium (CCC), the Computing Research Association (CRA), and the National Science Foundation. Starting from the fall 2010, he is going to work with [http://www.cs.umd.edu/~ben/ Dr. Ben Shneiderman] at the [http://www.cs.umd.edu/hcil Human Computer Interaction Lab], University of Maryland.

==== 2010-05-01 :: Sergey has received EU Marie Curie International Incoming Fellowship ====
Sergey Sosnovsky's proposal for EU [http://cordis.europa.eu/improving/fellowships/home.htm Marie Curie Fellowship] is approved by the EU Research Executive Agency. The funding starts in July, 2010 and will last until July 2012. The project "Intelligent Support for Authoring Semantic Learning Content" will focus on implementation of author-friendly technologies for learning content development, including collaborative authoring support, metadata authoring support, open-corpus content discovery, interactivity authoring, and gap detection.

==== 2009-06-26 :: PAWS Caught on UMAP 2009 Video ====
* 0:27 [[User:Myudelson|Michael]]
* 1:09 [[User:Rostaf|Rosta]]
* 1:18 [[User:Sergey|Sergey]]
* 1:51 [[User:Suleehs|Danielle]]
* 3:12 [[User:Myudelson|Michael]] and [[User:Sergey|Sergey]]
* 4:01 [[User:Peterb|Peter]]
<youtube>v_amf_zcLtQ</youtube>

News

2010-12-24T01:00:25Z

Myudelson: