Building Monolingual Comparable and Annotated Corpora: An experimental study from a pos tagged corpus (Construire un corpus monolingue annoté comparable Expérience à partir d'un corpus annoté morpho-syntaxiquement) [in French]

This work is motivated by the will of creating a new part-of-speech annotated corpus in French from an existing one. We propose a general and operational definition of the comparability relation between annotated monolingual corpora. We also propose a comparability measure and a procedure to build semi-automatically a comparable corpus from a source one. We study the use of the perplexity (information theory motivated measure) as a way to rank the sentences to select for building a comparable corpus. We show that the measure can play a role but that it is not sufficient. Mots-clés : Corpus comparable, Corpus monolingue, Corpus annoté, Mesure de la comparabilité, Construction de corpus comparable, Analyse morpho-syntaxique, Auto-apprentissage, Perplexité.