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

10
(No Transcript)
11
(No Transcript)
12
(No Transcript)
13
(No Transcript)
14
(No Transcript)
15
(No Transcript)
16
(No Transcript)