Détection de la cohésion lexicale par voisinage distributionnel : application à la segmentation thématique

Abstract : The present work takes place within the Voiladis project (Lexical neighborhood for discourse analysis), whose purpose is to exploit lexical cohesion markers in the study of various discursive phenomena. We want to show the relevance of a distribution-based lexical resource to locate interesting relations between lexical items in a text. We call "neighbors" lexical items that share a significant number of syntactic contexts in a given corpus. In order to evaluate the usefulness of such a resource, we address the task of topical segmentation of text, which generally makes use of some kind of lexical relations. We discuss here the importance of the particular resource used for the task of text segmentation. Using a system inspired by [Hearst 1997], we show that lexical neighbors provide better results than a classical resource.
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Clémentine Adam, François Morlane-Hondère. Détection de la cohésion lexicale par voisinage distributionnel : application à la segmentation thématique. RECITAL'09, Jun 2009, Senlis, France. pp.article 6. ⟨hal-00417489⟩

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