Extraction non supervisée de relations sémantiques lexicales

Nous presentons une base de connaissances comportant des triplets de paires de verbes associes avec une relation semantique/discursive, extraits du corpus francais frWaC par une methode s’appuyant sur la presence d’un connecteur discursif reliant deux verbes. Nous detaillons plusieurs mesures visant a evaluer la pertinence des triplets et la force d’association entre la relation semantique/discursive et la paire de verbes. L’evaluation intrinseque est realisee par rapport a des annotations manuelles. Une evaluation de la couverture de la ressource est egalement realisee par rapport au corpus Annodis annote discursivement. Cette etude produit des resultats prometteurs demontrant l’utilite potentielle de notre ressource pour les tâches d’analyse discursive mais aussi des tâches de nature semantique.

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