Séminaire de Pr Yves Chiaramella, MRIM/LIG - Date : 18 juin 2007, 14h00 - Lieu : Centre MICA

Interprète traducteur : le séminaire sera présenté en anglais

Abstract:
The fast growing use of information retrieval engines across the world by an increasingly heterogeneous popution of users soon raised the important question of ensuring retrieval effectiveness in a highly multilingual context. More and more common becomes the situation where a user of mother language  A tries to retrieve documents written in language B. When trying to retrieve relevant information through search engines, this user has to issue queries which are basically textual information, even when reduced to simple sequences of keywords. On the other hand,  because the searched documents are written in language B, they are also indexed based on keywords or terms from this language, and the user has then to properly express his information need based on terms from a foreign (to him/her) language B. Hence retrieval effectiveness directly depends on the user's expertise in language B.

Multilingual information retrieval is a recent domain aiming to favor the search of foreign documents from  queries written in every mother language, an approach which implies  research and development of effective and efficient language translation tools and their proper integration in retrieval engines.
In this seminar we will introduce in a detailed way the premises of this domain and present the most important techniques related to crosslingual  information retrieval (from language A to language B) and multilingual  information retrieval (from language A to a set of languages B, C, D).