Indexation des salaires et paix industrielle

en Automatique et Informatique Industrielle

Indexation de textes: l'apprentissage des concepts

hi technical fields, mmly documents go unread due to a lack of awareness of their existence. A system which indexes texts can find all relevant texts in response to a query. The problem is to establish the indexation. At present , adwmced full text sys tems automatically index texts on the complete thesaurus with computed weights. Another way of doing this carl be a person choosing the set of r...

Indexation et recherche d'images par arbres des coupes. (Image indexing and retrieval using component trees)

This thesis explores component trees, hierarchical structures from Mathematical Mor-phology, and their application to image retrieval and related tasks. The distinct com-ponent trees are analyzed and a novel classification into two superclasses is proposed,as well as a contribution to indexing and representation of the hierarchies using den-drograms. The first contribution t...

Indexation de co-occurrences dans des corpus de documents structurés et production de cartes sémantiques interactives

This paper addresses the problem of indexing very large enterprise corpuses. We have designed a simple yet efficient (in terms of computation time and the size of the generated results) method allowing to filter, on a per-document basis, the most representative co-occurrences of the documents. The reason for using co-occurrences is twofold. First, queries composed by experts on specialized corp...

Indexation sémantique des images et des vidéos par apprentissage actif. (Semantic indexing of images and videos by active learning)

The general framework of this thesis is semantic indexing and information retrieval, applied to multimedia documents. More specifically, we are interested in the semantic indexing of concepts in images and videos by the active learning approaches that we use to build annotated corpus. Through out this thesis, we have shown that the main difficulties of this task are often related, in general, t...