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SKOS : A language to describe simple knowledge structures for the web

SKOS : A language to describe simple knowledge structures for the web. 2008. 11. 19 W3C Semantic Web Working Group Summarized by Gihyun Gong. About SKOS. SKOS means ‘Simple knowledge organization System’ Developed by W3C’s Semantic Web Best Practices-WG Started in 2004/02

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SKOS : A language to describe simple knowledge structures for the web

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  1. SKOS : A language to describe simple knowledge structures for the web 2008. 11. 19 W3C Semantic Web Working Group Summarized by Gihyun Gong

  2. About SKOS • SKOS means ‘Simple knowledge organization System’ • Developed by W3C’s Semantic Web Best Practices-WG • Started in 2004/02 • First Working Draft Edition in 2005 • First Public Working Draft Edition in 2008/01/25

  3. Introduction • What is SKOS? • SKOS is a model for expressing knowledge organization systems in a machine-understandable way • Set of classes and properties to describe concept • Goal • To link RDF documents or merge with other RDF data • Applicable fields? • Thesaurus, Dictionaries, Classification Scheme • Ontology merging, Construct new domain ontology

  4. Introduction

  5. SKOS example 1 <rdf:RDF xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#" xmlns:skos="http://www.w3.org/2004/02/skos/core#"> <skos:Conceptrdf:about="http://www.example.com/concepts#animals"> <skos:prefLabel>animals</skos:prefLabel> <skos:altLabel>creatures</skos:altLabel> <skos:altLabel>fauna</skos:altLabel> </skos:Concept> </rdf:RDF>

  6. SKOS example 2 • An extract from the UK Archival Thesaurus Term: Economic cooperation Used For: Economic co-operation Broader terms: Economic policy Narrower terms: Economic integration European economic cooperation European industrial cooperation Industrial cooperation Related terms: Interdependence Scope Note: Includes cooperative measures in banking, trade, industry etc., between and among countries.

  7. SKOS example 2 • RDF graph using the SKOS

  8. SKOS Vocabularies • skos:Concept • skos:prefLabel • skos:altLabel • skos:hiddenLabel • skos:altSymbol • skos:note (human-readable documentation) • skos:definition • skos:scopeNote • skos:example • skos:historyNote : give an instruction or useful information • skos:editorialNote : administrative documentation • skos:changeNote : change log of concept

  9. SKOS Vocabularies : relationships • skos:semanticRelation • skos:broader • skos:narrower

  10. SKOS Vocabularies : relationships • skos:related

  11. SKOS Vocabularies : Collection • skos:Collection • skos:member

  12. Use Case : FOAF

  13. Use Case : SIOC+FOAF+SKOS

  14. Use Case : Folksonomy • Folksonomy • is classification by people (differ from Directory) • is a sort of user created Tag Tags : Mirage, M480, Samsung, Anycall, SmartPhone, Smart-Phone

  15. Use Case : Gemet • Gemet • General multilingual environmental thesaurus

  16. Use Case : SWED • SWED • Prototype of a new kind of directory of environmental organisations and projects

  17. Links to the SKOS

  18. Summary • SKOS is a simple framework for presenting and sharing terminology • Provides interoperability between different RDF documents • You can see more about SKOS in • http://www.w3.org/2004/02/skos • Do we expect everything(RDF) to change to SKOS format?

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