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Thematic Domain Group 7: Lexical Semantics

Thematic Domain Group 7: Lexical Semantics. ISO TC 37/SC 4 N470 ISO-TC37 meeting in Marrakech 25 May 2008 MONICA MONACHINI ILC-CNR. Outline. Situation & Objectives Links with other ISO work: LMF, TDGs Approaches Sources of info DC metamodel ISO 12620 & samples of xml instantiations

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Thematic Domain Group 7: Lexical Semantics

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  1. Thematic Domain Group 7: Lexical Semantics ISO TC 37/SC 4 N470 ISO-TC37 meeting in Marrakech 25 May 2008 MONICA MONACHINI ILC-CNR

  2. Outline • Situation & Objectives • Links with other ISO work: LMF, TDGs • Approaches • Sources of info • DC metamodel ISO 12620 & samples of xml instantiations • TDG7 task force and related activities • Next work

  3. Situation in TDG7 and Objectives • New-born Thematic Domain Group on Lexical Semantics (Hong Kong ISO resolutions). • Convenor: MM • Chairs: Gil Francopoulo & Nicoletta Calzolari • Objective: • focus on lexical semantics for NLP lexicons • establish a coherent family of low level standards (linguistic constants) for the lexical semantic profile • augment the DCR with specific data categories to be used as elementary descriptors in combination with structural elements of LMF – ISO 24613:2008 when defining LMF-compliant lexicons

  4. Links with other ISO activities • interoperability between lexicon and syntactic and semantic annotation • work shoulder to shoulder with • LMF • TDG5 (SynAF) • TDG3 (SemAF) • TDG6 ontologies • ISO 12620 – meta-model for DCs and ISOCat

  5. TDG7 & LMF semantic extension DCR Semantic Profile semantic relations domain info TDG6 ontological nodes TDG5 TDG3 domain info semantic relations semantic roles

  6. TDG7 & LMF multilingual ext. semantic relations ontological nodes TDG6 DCR Semantic Profile

  7. ISO Approach • Bottom-up procedure from best practices (à la Eagles) • Collecting candidate semantic DCs • Grouping, mapping, structuring • Drafting a first set of definitions In TDG7, initially, focus on a set of candidate harmonized descriptors for semantic relations

  8. Sources • LIRICS set of agreed-on candidate semantic DCs for NLP lexicons ( SIMPLE harmonized plurilingual lexicons for 12 lang.s) • KYOTO harmonization of synset semantic relations ( inter-WN; intra-WN) … but also • BootStrep: extension for the biology domain (e.g. OBO relations has_grain; has_component …) • NEDO: definition of harmonized predicate argument structures and semantic roles

  9. What’s inherited from SIMPLE

  10. SIMPLE set of semantic relations 60semanticrelations

  11. LIRICS XML format Conversion to ISO12620

  12. ISO 12620: Data Category metamodel

  13. Instrumental :DataCategory hasOneOfTheseValues#1 UsedFor: DataCategory hasOneOfTheseValues#2 hasOneOfTheseValues#3 UsedAs: DataCategory UsedBy DataCategory Conceptual domain A DC can be associated with a specific subset of valid values described in the Descriptive component (as a list of data categories)

  14. Taxonomies of DCs A DC can be linked to a broader concept, a more general data category described in the Descriptive component Instrumental: DataCategory Activity: DataCategory hasABoaderDataCategory DirectTelic: DataCategory hasABoaderDataCategory hasABoaderDataCategory Telic: DataCategory

  15. LIRICS XML format has broader has one value Conversion to ISO12620

  16. XML representation

  17. XML representation

  18. WordNet semantic relations: mapping A list of 85 sem.rels as a result of a mapping of the KYOTOWordNet grid Intra-WN Inter-WN

  19. TDG7 Community • TDG7 mailing list set up to circulate the set of candidate DCs and allow discussion • How to enlarge TDG7 task force? • Link with the LMF mailing list • Invite people to join from international projects we are involved in

  20. Next activities • Write procedures to convert the LIRICS stuff to the ISO-12620 format • Refine the WordNet set of relations by adding definitions, examples, … • Provide xml instantiations of the agreed-on semantic DCs to upload in the new coming ISOCat tool • Cooperate with ISOCat people • Continue with other semantic info: semantic relations (FrameNet), features, domain, link with ontologies

  21. SIMPLE Ontology in OWL CauseChangeofState CauseChangeofState CauseChangeofState roastbeef roast createdBy

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