La transhumance festive Nord/Sud des toxicomanes en Catalogne : à la recherche des normes et des espaces défaits

À la recherche des paramètres des modèles de RI

We address in this study the problem of estimating standard IR model parameters on new collections for which no relevance judgements are available. To do so, we rely on past collections with relevance judgements and introduce a new, collection independent query representation. From this representation as well as from past collections, we learn a regression function linking queries to parameter ...

Sur la préparation et l'utilisation des vaccins associés en Iran

Importance et force des réseaux pour les politiques, la pratique et la recherche en santé

Propositions pour la pondération des termes et l'évaluation de la pertinence des éléments en recherche d'information structurée

Structured Information Retrieval copes with a number of open issues. One can cite the evaluation of elements relevance: the aim is to return to the user a ranked list of results. This evaluation is based on the term weighting scheme and on the model used for the matching of queries and elements. In this paper, we propose to explore some clues to answer to this problem. For example, we propose t...

Contribution à la modélisation des stuctures en béton armé par la méthode des éléments finis

A computer program is developed for the finite element nonlinear analysis of two-dimensional reinforced concrete structures under monotonie loading. The smeared-crack approach is used and the reinforcement is considered uniformly distributed within the element. An elastic work-hardening plastic stress-strain relationship with nonassociated flow rule is assumed for the concrete in compression an...