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User Profile Construction Deliverable 14

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... 14. BT & AIdministrator. Alistair Duke. 2. Two Tracks ... and are submitted by: Martin Crossley or Alistair Duke. Basic OntoShare Query. Enhanced Query ... – PowerPoint PPT presentation

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Title: User Profile Construction Deliverable 14


1
User Profile ConstructionDeliverable 14
  • BT AIdministrator

Alistair Duke
2
Two Tracks
Express OntoShare store as RDF Upload to SESAME
Allow user to refine OntoShare profile and
express as RQL
Query SESAME using client library
Knowledge Portal - Spectacle based visualisation
of store
P.M. Demo
3
RQL Query Interface
OntoShare
SESAME
Client Library
Query Interface
User
4
OntoShare RDF
  • A document isAbout one or more concepts
  • inferred by user/system placement in Ontology
  • A document
  • is added by a user
  • has comments by some users
  • is added on a date
  • has a set of keywords
  • has a summary

5
OntoShare RDF
  • Concepts
  • are arranged in an ontology
  • are characterised by keywords
  • are related to other concepts
  • Dice coefficient (based upon co-occurrence of
    keywords)
  • horizontal links

6
Demo
  • http//i97.labs.bt.com/profile_refiner/ologin.html

7
ProfileRefiner
8
More Expressive Queries / Profiles
Basic OntoShare Query
Enhanced Query
  • Selects all documents which
  • (are about Virtual Community or XML)
  • Selects all documents which
  • (are about Virtual Community or XML
  • or are about any subclass of Virtual Community
    or XML
  • or are about any group related to Virtual
    Community or XML)
  • and have keywords XML, Semantic Web
  • and do not have keywords RDF
  • and are between dates 2002-01-02 and 2002-05-05
  • and are submitted by Martin Crossley or
    Alistair Duke

9
Results
  • Limited to Ontology of OntoShare
  • Could be used as more expressive OntoShare
    profile
  • Could be used by an agent to provide a periodic,
    profiled, information digest
  • Of even more use with documents that have their
    own meta-data

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