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PADRL Presentation 2001-11-03
PADRL Presentation 2001-11-03
PADRL Presentation 2001-11-03
PADRL Presentation 2001-11-03
PADRL Presentation 2001-11-03
PADRL Presentation 2001-11-03
PADRL Presentation 2001-11-03
PADRL Presentation 2001-11-03
PADRL Presentation 2001-11-03
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PADRL Presentation 2001-11-03


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  • 1. The KMR Group at CID
    • Knowledge Management Research Group
        • Ambjörn Naeve
        • Mikael Nilsson
        • Matthias Palm₫r
        • Fredrik Paulsson
        • Claus Knudsen
    • Participation in PADLR (Personalized Access to Distributed Learning Resources)
      • Edutella (Infrastructure)
      • Modular Content Archives (Content design, Portfolio)
      • Mathematical Courselets
  • 2. PADLR and Edutella
    • Edutella is a p2p framework for exchange of metadata
    • It builds on top of the JXTA (Sun) project
    • We want the following services (at least)
      • Query
      • Mapping
      • Replication
  • 3. Basic infrastructure work within the KMR group
    • The first step is designing and implementing the query service, so far we have:
    • Categorized queries into levels of expressibility
    • Agreed on a schema for expressing and exchanging queries (done mainly together with people in KBS).
    • Built a java-API for manipulation of queries.
    • Built a parser and serializer against this API
  • 4. Basic infrastructure work within the KMR group
    • We're currently working on:
    • Continuing developing and testing the schema and API
    • Writing utility functions to simplify translations to other query representations such as SQL and AmosQL
    • Methods for registration process in hubs.
    • Mapping schemas
    • Continuosly building consensus via keeping a close eye on parallell development in mailinglists and standardization movements (IMS, IEEE, W3C, ADL). (Bleeding edge)
  • 5. Higher-level work within the KMR group
    • Graphical query language using Unified Language Modeling (ULM)
    • Evaluation of the possibilities of Edutella for user-level tools: Conzilla filtering/Portfolios etc.
    • Portfolio integration (later presentation).
  • 6. Hard tasks
    • Agreeing on the query schema turned out to be a hassle (just as in W3C) but we solved it!
    • Finding common terminology between people within different fields such as database- and AI-research.
    • Query translations on the higher level queries are rather complex (hard algorithms).
    • Promoting RDF and Edutella internationally (IMS, LOM, ISO, Dublin Core, and many more). Much momentum behind XML-based solutions.
    • Promoting meta-data, RDF and Edutella locally.
  • 7. Modular content archives Uppsala + KMR group
    • Investigate how to do content design in the humanities.
    • Describe how portfolios should work (a paper).
    • Provide a proof of concept implementation of a portfolio system.
    • Develop methods for using portfolios in curriculum design and course activities.
  • 8. Portfolio work
    • We are working right now with design and supervision of the portfolio development
    • Developing an RDF-binding of the IMS content packaging
    • Developing an API for IMS CP
    • Making sure IMS Content Packaging is used for storing metadata and structure
    • Changing the backend representation and access into RDF format
    • Allowing an edutella peer to access the portfolios
  • 9. Hard problems
    • The RDF binding requires international agreement
    • Interpretation of CP information binding
    • Presentation of portfolios in browsers
    • ACLs, consistency, concurrency and distributed access (WebDav)
    • Defining the limits and possible uses of portfolios