Typologie des questions à réponses multiples pour un système de question-réponse (Typology of Multiple Answer Questions for a Question-answering System) [in French]

Typology of Multiple Answer Questions for a Question-answering System The evaluation campaigns of question-answering systems are generally based on the validity of an individual answer supported by a passage (for a factual question) or a group of answers coming all from a same supporting passage (for a list question). This framework does not allow the possibily to answer with a set of answers, nor with answers gathered from several documents. This cross-checking can be needed for building an answer composed of several elements in order to be as accurate as possible. Besides a large majority of questions with a singular form seems to be answered with a single answer whereas they can be satisfied with many. We present here a typology of questions with multiple answers and an overview of problems encountered by a question-answering system with this kind of questions. MOTS-CLÉS : question-réponse, questions à réponses multiples, question liste.