Making Thesauri Work for the Semantic Web - PowerPoint PPT Presentation

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Making Thesauri Work for the Semantic Web

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Rutherford Appleton Laboratory. SWAD-Europe. Semantic Web Advanced Development for Europe ... Rutherford Appleton Laboratory. Generating TIF-S from TIF. TIF-S ... – PowerPoint PPT presentation

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Title: Making Thesauri Work for the Semantic Web


1
Making Thesauri Work for the Semantic Web
Alistair Miles Brian Matthews Michael Wilson
2
Overview
  • Introduction
  • Thesaurus Interchange Format (TIF)
  • Thesaurus Tools

Slide 2
3
SWAD-Europe
  • Semantic Web Advanced Development for Europe
  • Research Development
  • Demonstration Dissemination
  • Partners
  • CCLRC
  • HP Labs
  • ILRT
  • ERCIM (INRIA)
  • Stilo

Slide 3
4
TIF for the Semantic Web
  • RDF Schema
  • Concept-based
  • Extensible

Slide 4
5
TIF Overview
Slide 5
6
TIF Classes
7
TIF Built-In Properties
Slide 6
8
Concept-Relation
Slide 6
9
Concept-Equivalence
Slide 6
10
TIF Data
ltrdfRDF xmlns"http//www.w3c.rl.ac.uk/2003/07/2
2-tif" xmlnsdc"http//purl.org/dc/elements
/1.1/" xmlnsrdfhttp//www.w3.org/1999/02/22-rd
f-syntax-ns xmlbasehttp//www.rl.ac.uk/sophi
a/gt ltThesaurus rdfabout"GCL"gt
ltdctitlegtGovernment Category Listlt/dctitlegt
ltdcdescriptiongtList of categories used for
government metadata.lt/dcdescriptiongt
lt/Thesaurusgt ltTerm rdfabout"GCL?termA-leve
ls"gt ltvaluegtA-levelslt/valuegt
lt/Termgt ltConcept rdfabout"GCL?concept607"gt
ltcodegt607lt/codegt ltpreferred
rdfresource"GCL?termFirearms"/gt
ltnonPreferred rdfresource"GCL?termGun20licensi
ng"/gt ltnonPreferred rdfresource"GCL?term
Handguns"/gt ltbroader rdfresource"GCL?co
ncept564"/gt ltrelated rdfresource"GCL?co
ncept598"/gt ltrelated rdfresourceGCL?co
ncept827"/gt ltinexact rdfresource"GCL?co
ncept111"/gt ltpartial rdfresource"GCL?co
ncept222"/gt lt/Conceptgt lt/rdfRDFgt
Slide 7
11
Term-Based Extension
  • TIF-Simple

Slide 8
12
TIF-S Built-In Properties
Slide 9
13
Generating TIF-S from TIF
  • TIF-S as derived relations
  • Mapping rules
  • Use Closed World Machine (CWM)

Slide 10
14
TIF Summary
  • RDF Schema
  • Concept-based
  • Mono- or Multi- lingual
  • Extensible framework of properties
  • Term-based extension (TIF-S)
  • Exploit strengths of both models

Slide 11
15
Thesaurus Tools
  • Low-level
  • Http server SophiaLite
  • Java API Thes
  • User-level
  • Thesaurus browser SophiaMultilingua

Slide 12
16
SophiaLite
  • Http thesaurus server
  • Http get parameters
  • ?concept
  • ?term
  • ?data topconcepts / topterms / allconcepts
    / allterms
  • Return RDF thesaurus data

Slide 13
17
SophiaLite Architecture
Http Client
Http (params)
Http (RDQL)
Joseki
Joseki
Jdbc / http
RDF Store
RDF Files
Slide 14
18
Thes Java API
  • Link to UML
  • Implementation

Slide 15
19
SophiaMultilingua
  • Thesaurus Viewer
  • Demo
  • Leverage SW tools for powerful lightweight apps

Slide 16
20
Future Work
  • Using OWL for validation and inference
  • Thesaurus web service
  • Publish datasets
  • More user-level applications
  • Use existing thesauri to enhance web experience
  • Ontology migration

Slide 17
21
Information
  • Alistair Miles a.j.miles_at_rl.ac.uk
  • TIF on the web
  • http//www.w3c.rl.ac.uk/SWAD/thesaurus/tif/tif.htm
    l
  • SWAD-Europe Thesaurus Activity
  • http//www.w3c.rl.ac.uk/SWAD/thesaurus.html

Slide 18
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