Indexation multi-critères et différentes approches de combinaison

This paper is following works on indexation and information retrieval made at the LIUPPA on geographics criteria. Geographic information has three components : spatial, temporal and thematic. Our team has already worked on spatial and temporal independantly. Today we want to combine these differents components. We propose to use a stastical aproach, usually reserved to full-text analyse of a document, for spatial and temporal. This aproach will be called “grid”. However, we want also to extract semantics links existing between geographics informations. We study an other combinaison type, called “approach by pattern”. MOTS-CLÉS : indexation, recherche d’information, spatial, temporel, appariement, combinaison, cadres, grille.