La recherche participative en CSSS-CAU

La recherche d'information. De la documentation automatique à la recherche d'information en contexte

Information Retrieval (IR) was founded soon after the construction of the first computers and, as such, is certainly the oldest application of computer science to the problem of accessing digitalized documents. About sixty years later and twenty years after the Internet revolution and its billions of pages on the Web IR is even more in the air. The domain was for a long time restricted to non i...

Étude préliminaire à la recherche de photographies muséales en mobilité

This paper studies the problem of images indexing and retrieval related to museum visits. We especially focus on "offline" use of mobile devices (i.e., without connection to a remote server), from the point view of intrinsic quality and the point of view of mobile potential use. We describe three approaches, and we study their qualitative behavior on a test collection of photographs of painting...

Considérations sur l'évaluation de la robustesse en recherche d'information

This paper describes and evaluates vector-space, probabilistic and language IR models used to retrieve news articles from a corpus written in the French language. Based on three CLEF test-collections and 151 topics, we analyze the retrieval effectiveness of these approaches and analyze the poor retrieval results of hard topics. An appropriate robust evaluation is not easy because both the mean ...

De la recherche en traitement d'images à la recherche en systèmes d'informations en passant par l'enseignement à distance et le travail collaboratif

A la recherche d'un modele de Derivation en Italien

Les travaux de rtorganisation du Dictionnaire Machine de rltalien se divisent en plusieurs branches dont l'tme, la plus indtpendante du point de vue des r~sttltats, scientifiques, est la recherche d'un module de d~rivation. Nous nous limitons dans cet expos6 aux mots suffixds. 1. Notre point de dtpart est le dictionnaire de l'Italien et tionnaire Machine fi notre disposition, et la recherche se...