Noyaux de r\'e\'ecriture de phrases munis de types lexico-s\'emantiques
De nombreux probl{\e}mes en traitement automatique des langues requi{\e}rent de d{\'e}terminer si deux phrases sont des r{\'e}{\'e}critures l{'}une de l{'}autre. Une solution efficace consiste {\a} apprendre les r{\'e}{\'e}critures en se fondant sur des m{\'e}thodes {\a} noyau qui mesurent la similarit{\'e} entre deux r{\'e}{\'e}critures de paires de phrases. Toutefois, ces m{\'e}thodes ne permettent g{\'e}n{\'e}ralement pas de prendre en compte des variations s{\'e}mantiques entre mots, qui permettraient de capturer un plus grand nombre de r{\`e}gles de r{\'e}{\'e}criture. Dans cet article, nous proposons la d{\'e}finition et l{'}impl{\'e}mentation d{'}une nouvelle classe de fonction noyau, fond{\'e}e sur la r{\'e}{\'e}criture de phrases enrichie par un typage pour combler ce manque. Nous l{'}{\'e}valuons sur deux t{\^a}ches, la reconnaissance de paraphrases et d{'}implications textuelles.
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