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Istituto di linguistica computazionale "Antonio Zampolli"

Torna all'elenco Contributi in atti di convegno anno 2008

Contributo in atti di convegno

Tipo: Contributo in atti di convegno

Titolo: Combining statistical techniques and lexico-syntactic patterns for semantic relations extraction from text

Anno di pubblicazione: 2008

Autori: Giovannetti E.; Marchi S.; Montemagni S.

Affiliazioni autori: ILC-CNR

Autori CNR:


Abstract: We describe here a methodology to combine two different techniques for Semantic Relation Extraction from texts. On the one hand, generic lexicosyntactic patterns are applied to the linguistically analyzed corpus to detect a first set of pairs of co-occurring words, possibly involved in "syntagmatic" relations. On the other hand, a statistical unsupervised association system is used to obtain a second set of pairs of "distributionally similar" terms, that appear to occur in similar contexts, thus possibly involved in "paradigmatic" relations. The approach aims at learning ontological information by filtering the candidate relations obtained through generic lexico-syntactic patterns and by labelling the anonymous relations obtained through the statistical system. The resulting set of relations can be used to enrich existing ontologies and for semantic annotation of documents or web pages.

Lingua abstract: inglese

Curatore/i del volume: Aldo Gangemi, Johannes Keizer, Valentina Presutti, Heiko Stoermer

Referee: Sė: Internazionale

Parole chiave:

  • Ontology Learning from Text
  • Semantic Relation Extraction
  • Lexico-syntactic Patterns
  • Distributional Similarity

URL: http://sunsite.informatik.rwth-aachen.de/Publications/CEUR-WS/Vol-426/swap2008_submission_54.pdf

Congresso nome: SWAP 2008 - Semantic Web Applications and Perspectives

Congresso luogo: Roma

Congresso data: 15-17 December 2008

Congresso rilevanza: Internazionale

Congresso relazione: Contributo

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