Yinlin Chen, Edward A. Fox Dept. of CS, Virginia Tech, Blacksburg, VA USA Contact info: Ensemble Project Meeting, May 18-19, 2009, Portland, OR

 NSF grant numbers DUE , , , , , and  Collaborators working on Ensemble, NSDL, SI, CITIDEL, and other related projects  VT students, faculty, staff helping on this and precursor projects ◦ AlgoViz: C. Shaffer, M. Akbar, A. Alon ◦ WebCat: S. Edwards, R. Parthasarathy ◦ CS6604 project Fall 2008: W. Zhu, A. Singh, S. Santhanam ◦ CS4624 project Spring 2009: P. Frangipane

 An integrated DL (see 5S-related dissertation of Rao Shen, building upon Goncalves diss.)  Includes union collection made up of contributing collections + new content sources  Includes union community made up of contributing communities +new social groups  Includes a union social network built by enhancing the social networks from each contributing community and collection  Includes union services enhancing the union of the respective services + other services Yinlin Chen Dissertation – please help! Lots of good papers and results likely from this!

4 Repository1 DL1 Repository2 Union Catalog Union Repository Catalog1Catalog2 Searching Union DLDL2 archaeologists Society General Public Society Archaeologists General Public Union Society Service Browsing Service Union Service Harvesting, Mapping, Searching, Browsing, Clustering, Visualization Architecture of the ETANA Union DL (for archaeology)

5 Repository1 DL1 Repository2 Union Catalog Union Repository Catalog1Catalog2 Searching Union DLDL2 Students, Professor Researcher Society General Public Society Computing General Public Union Society Service Browsing Service Union Service Harvesting, Mapping, Searching, Browsing, Recommending, Logging Architecture of an Ensemble Union DL (for computing education)

 National Science Digital Library  -> Distributed Learning  Help with Science, Technology, Engineering and Mathematics (STEM) learning  One of the Pathways projects in NSDL  Serve the computing community(ies)  Connect computing with other STEM disciplines (and their Pathways)  Harmonize with the central support groups that serve all of NSDL

 NSDL central services use Fedora for repository  Fedora and DSpace are working together in a variety of ways toward aiding DL community  Fedora works with OAI-PMH, Web services, and various interfaces including ◦ Fez ◦ Drupal  We will connect Fedora with Twitter, Facebook, Second Life, etc. so they can provide users with tailored and personalized user environments

 A distributed portal  A site that harvests computing educational resources and serves as data provider to NSDL  A repository providing a range of services, including to users and to partner sites  A bridge linking together all interested computing education communities  A web site that allows users to discover, download, review, evaluate, use, adapt, and submit computing educational resources

 Make sure that all computing related resources get to NSDL.org, with good metadata, so are easily discoverable  Help with the deployment of tools and services developed in NSDL so the computing community benefits from DL best practices  Test, evaluate, and as appropriate, contribute our advanced tools and services, and other best practices, to help the rest of NSDL  Help with NSDL evaluation and improvement

 Provide better integration ◦ Improved user experience ◦ Improved services  Build further upon Fedora so it can support a union DL, with ◦ additional services, and ◦ handling additional content and information

 Deploy automated methods so always have a complete and up-to-date metadata repository of good computing educational resources  Build a social network of all in computing who contribute resources, as well as others who identify as reviewers and/or users of resources  Have an exemplary DL with full range of services that are most valuable to our users  Help each computing community to best serve all educational needs of its constituents

SsExamplesObjectives StreamsText; Video; Audio; Image; BitProperties of Ensemble DL content StructuresCollection; Ontologies; Catalog; Metadata; Hypertext; Document Organizational aspects of the Ensemble DL content SpacesUser environment; Application environment; Server environment; DL content environment Ensemble Portal logical and presentation views. ScenariosSearching; Browsing; Recommending; Marking; Annotating; Logging; Submitting; Harvesting; Data providing Users’ behaviors while using Ensemble Portal services. Services’ functions behaviors. SocietiesUser, groups, communities, social networks Ensemble project teams, responsible for running Ensemble services; actors, that use those services and relationships among them.

Digital Object Community Collection Ensemble DL Metadata Catalog Structural Metadata Specification StreamsStructuresSpacesScenariosSocieties Browsing Searching services Structured Stream UI Modules Web UI Indexing Notification Submission Workflow Document Descriptive Metadata Specification Authorizations Users Register User Admin User Groups Plus others: harvesting, data/service providing, …

 Help each collection with content that is appropriate but comes from elsewhere  Help each community with useful services  Through harvesting, ontology, articulation, and data providing - serve as a bridge, between all the computing communities and collections  Have central site to show best practices and all content and services, so communities can learn from each other

 Scope: ◦ Related to Computing Education  OAI Data Provider: ◦ Collection providers need to set up OAI data providing services to allow the Ensemble portal to access their metadata. Harvesting can be done on a periodic basis.  Metadata Requirement: ◦ Dublin Core ◦ Required: title, description, subject, source, creator, date, format, rights and coverage  Resource Requirement: ◦ up-to-date, continue growing, access to content directly

Collections AlgoViz Syllabus CSTC CSTA - K12 Computer Science Virtual History Museum Alice PlanetMath AJAX Gaming and Graphics Hibernate Java Programming Other Related Links SIGCSE presentation Tutorials Directly Harvest Hosted by CITIDEL Collected by CITIDEL

 Scope: ◦ Related to Computing Education  OpenID Support: ◦ Allows users to use their own OpenID to sign onto Ensemble portal site and participated sites  Logging of user actions: ◦ Storing the user activity log will help us analyze user behavior and provide more user oriented services

 Access to related content submitted elsewhere ◦ Ensemble will gather contents from a wide range of providers; users will have access to diverse materials that are present in different sites.  Access to info on people not (yet) in your community ◦ Ensemble will let users view content provided by persons who are not listed in the users’ community. ◦ The union social network will be directly and indirectly accessible.

 Provide a ‘single system’ feel to its users  Present collected content in a unified form  Use ontology and multiple classification systems to provide various views  The distributed nature of the content along with various options for marking, reviewing it will provide the user with better understanding and control over the information.

 eZine: ◦ Publish e-magazines, for each community / altogether  Expert Voice: ◦ Users can create blogs or comment on existing blogs. It is created to facilitate short conversations among those in the STEM community.  Fez: ◦ A content and communication management system that can be used by authors, editors, reviewers, and users of different communities to manipulate and distribute contents. ◦ This tool provides a better searching scheme for Fedora, has support for controlled vocabularies and better security options.  Harvest Manager: ◦ This tools allows automatic harvesting of OAI-PMH metadata from various sources.  ITuneU: ◦ Supports mobile learning with computing educational materials

 Each computing community can announce activities related to computing education.  Users can share news of their activities related to computing education: new resources, resource reuse, adaptations.  Ensemble Twitter:  Ensemble Twitter pound sign: #ensemblepw ◦ Please start now with notes of this meeting!  Follow topics related to computing education in real-time with searches (RSS of tweets)

 Facebook group – please join & contribute ◦ Computing Ensemble  Facebook application – planned so will have an environment in Facebook for those who there want to work with Ensemble  Encourage posting of suitable content to Facebook  Ensemble in Facebook – become a fan: &ref=nf &ref=nf  Synchronize status with Twitter

 Site for public ◦ Featured collections ◦ Browsing collections ◦ Searching collections ◦ News/About/Contact ◦ Content providers/ Collaborators ◦ Forum  Site for project team ◦ Forums for individual project team discussion ◦ Mailing list for whole project team ◦ Collection management (Controlled vocabularies, workflow, search keys, collections view) ◦ Collection access statistics

Home Forums Collections Searching Blogs RSS News Communities Twitter Mailing list General User Project Teams DLs Participated Sites Facebook Twitter Second Life User Contributes... Browsing Other Modules Other Modules

 Extends Fedora to support mark submission, browsing, and searching, along with full support for mark metadata.  Represents marks as first-class objects in Fedora.  Through a 'mark-aware' tool, a user opens the documents to view, creates a new mark by selecting a sub-document, highlights the selected sub-document, and is prompted for commentary.  To Do: ◦ Connect in mark-aware tools ◦ Demonstrate marks on popular content

 Evaluate usability in Central Portal Site  Add XML-based DL logging everywhere ◦ Generic - based on 5S ◦ Transaction – basic unifying entity  5Squal (extended?) to evaluate Ensemble DL at all levels and covering all aspects

 A quality assessment tool for Digital Libraries  Refine and evaluate Ensemble DL Digital Objects Metadata Services Completeness Conformance Accessibility Similarity Significance Timeliness Efficiency Reliability Numeric Indicators

 Home page

 Test and improve user interface of Drupal site  Make sure each team and partner is visible in some way through Drupal site  Add more content to central collection ◦ AlgoViz ◦ WebCat ◦  Integrate the ontology so it can be used for browsing

 Improve architecture, with use cases, …  Help connect with clouds, grids, service oriented architecture, Fedora disseminations, …  Help adding other communities besides AlgoViz and WebCat  Help adding other collections  Help adding services  Help with testing  Specific efforts on: ontology, articulation, SI, social network, rewards, dissemination/ publicity

 Get login for Drupal site and send comments  Join groups in Facebook, Second Life  Follow Ensemble Twitter  Provide suggestions, requirement statements  Each tool, service: explore how to integrate with central site and with other sites  Each community: provide user info  Each collection: provide info on: users, logs  Each team: setup your pages in Drupal site (for public and for team use)