Distance sémantique et degrés d'analogie dans les matrices analytiques définitoires

Starting with a comparison between the first big French thesaurusof Lafaye which distinguishes between two lexicaly close items by opposing different co-occurences within the sentences in which these items are usaully uttered, thus pioneering the Lexicon-grammar analyses inittiated by Maurice Gross, and the first big French analogical dictionary of Boissière which indeed helps finding unknown words but with the cost of squeezing grammatical and semantic differences between lexicaly close items, the author suggests a calculus of the degree of analogy between two items through an analytic and defining description refering to the matrix from which stemmed the defining matrixes of the two compared items. MOTS-CLÉS : analogie – Lexique-grammaire – matrices analytiques définitoires – verbes supports – synonymes.