NKOS 2003

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Information about NKOS 2003

Published on December 5, 2007

Author: Churchill

Source: authorstream.com

Making Thesauri Work for the Semantic Web:  Alistair Miles Brian Matthews Michael Wilson Making Thesauri Work for the Semantic Web Overview:  Overview Introduction Thesaurus Interchange Format (TIF) Thesaurus Tools Slide 2 SWAD-Europe:  SWAD-Europe Semantic Web Advanced Development for Europe Research & Development Demonstration & Dissemination Partners: CCLRC HP Labs ILRT ERCIM (INRIA) Stilo Slide 3 TIF for the Semantic Web:  TIF for the Semantic Web RDF Schema Concept-based Extensible Slide 4 TIF Overview:  TIF Overview Slide 5 TIF Classes:  TIF Classes TIF Built-In Properties …:  TIF Built-In Properties … Slide 6 … Concept-Relation:  … Concept-Relation Slide 6 … Concept-Equivalence:  … Concept-Equivalence Slide 6 TIF Data:  <rdf:RDF xmlns="http://www.w3c.rl.ac.uk/2003/07/22-tif#" xmlns:dc="http://purl.org/dc/elements/1.1/" xmlns:rdf=“http://www.w3.org/1999/02/22-rdf-syntax-ns#” xml:base=“http://www.rl.ac.uk/sophia/”> <Thesaurus rdf:about="GCL"> <dc:title>Government Category List</dc:title> <dc:description>List of categories used for government metadata.</dc:description> </Thesaurus> <Term rdf:about="GCL?term=A-levels"> <value>A-levels</value> </Term> <Concept rdf:about="GCL?concept=607"> <code>607</code> <preferred rdf:resource="GCL?term=Firearms"/> <nonPreferred rdf:resource="GCL?term=Gun%20licensing"/> <nonPreferred rdf:resource="GCL?term=Handguns"/> <broader rdf:resource="GCL?concept=564"/> <related rdf:resource="GCL?concept=598"/> <related rdf:resource=“GCL?concept=827"/> <inexact rdf:resource="GCL?concept=111"/> <partial rdf:resource="GCL?concept=222"/> </Concept> </rdf:RDF> TIF Data Slide 7 Term-Based Extension:  Term-Based Extension TIF-Simple Slide 8 TIF-S Built-In Properties:  TIF-S Built-In Properties Slide 9 Generating TIF-S from TIF:  Generating TIF-S from TIF TIF-S as derived relations Mapping rules Use Closed World Machine (CWM) Slide 10 TIF Summary:  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 Thesaurus Tools:  Thesaurus Tools Low-level Http server: ‘SophiaLite’ Java API: ‘Thes’ User-level Thesaurus browser: ‘SophiaMultilingua’ Slide 12 SophiaLite:  SophiaLite Http thesaurus server Http get parameters ?concept ?term ?data [ topconcepts / topterms / allconcepts / allterms ] Return RDF thesaurus data Slide 13 SophiaLite Architecture:  SophiaLite Architecture Slide 14 Joseki RDF Store Http Client Http (params) Http (RDQL) Jdbc / http RDF Files Joseki Thes Java API:  Thes Java API Link to UML Implementation: Slide 15 SophiaMultilingua:  SophiaMultilingua Thesaurus Viewer Demo Leverage SW tools for powerful lightweight apps Slide 16 Future Work:  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 Information:  Information Alistair Miles: a.j.miles@rl.ac.uk TIF on the web: http://www.w3c.rl.ac.uk/SWAD/thesaurus/tif/tif.html SWAD-Europe Thesaurus Activity: http://www.w3c.rl.ac.uk/SWAD/thesaurus.html Slide 18

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