TAILIEUCHUNG - Báo cáo khoa học: "Classifying French Verbs Using French and English Lexical Resources"

We present a novel approach to the automatic acquisition of a Verbnet like classification of French verbs which involves the use (i) of a neural clustering method which associates clusters with features, (ii) of several supervised and unsupervised evaluation metrics and (iii) of various existing syntactic and semantic lexical resources. We evaluate our approach on an established test set and show that it outperforms previous related work with an Fmeasure of . | Classifying French Verbs Using French and English Lexical Resources Ingrid Falk Universite de Lorraine LORIA Nancy France Claire Gardent CNRS LORIA Nancy France Jean-Charles Lamirel Universite de Strasbourg LORIA Nancy France Abstract We present a novel approach to the automatic acquisition of a Verbnet like classification of French verbs which involves the use i of a neural clustering method which associates clusters with features ii of several supervised and unsupervised evaluation metrics and iii of various existing syntactic and semantic lexical resources. We evaluate our approach on an established test set and show that it outperforms previous related work with an F-measure of . 1 Introduction Verb classifications have been shown to be useful both from a theoretical and from a practical perspective. From the theoretical viewpoint they permit capturing syntactic and or semantic generalisations about verbs Levin 1993 Kipper Schuler 2006 . From a practical perspective they support factorisation and have been shown to be effective in various NLP Natural language Processing tasks such as semantic role labelling Swier and Stevenson 2005 or word sense disambiguation Dang 2004 . While there has been much work on automatically acquiring verb classes for English Sun et al. 2010 and to a lesser extent for German Brew and Schulte im Walde 2002 Schulte im Walde 2003 Schulte im Walde 2006 Japanese Oishi and Matsumoto 1997 and Italian Merlo et al. 2002 few studies have been conducted on the automatic classification of French verbs. Recently however two proposals have been put forward. 854 On the one hand Sun et al. 2010 applied a clustering approach developed for English to French. They exploit features extracted from a large scale subcategorisation lexicon LexSchem Mes-siant 2008 acquired fully automatically from Le Monde newspaper corpus and show that as for English syntactic frames and verb .

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