Photographie aérienne et problèmes forestiers

Extraction de motifs séquentiels. Problèmes et méthodes

SYNOPSIS. Dans un premier temps, le problème de l’extraction de motifs séquentiels peut sembler proche de celui de l’extraction de règles d’association. Ce rapprochement s’avère cependant très fragile en raison d’un élément clé qui est propre à l’extraction de motifs séquentiels : la temporalité. Cette notion permet à la fois de distinguer à l’intérieur des enregistrements un ordre d’apparition...

Claude Bernard et les Problèmes de son Temps

Dr. Brooke serves well to reveal him in a more just and favourable light than that presented by many earlier and more recent writers. The message for medical historians is clear when he writes 'Strangely the diagnosis of porphyria which exonerates George III from so much speculative psychologizing brings him nearer to us as a human being'. An important function of the doctor historian is to see...

Inversion Bayésienne : illustration sur des problèmes tomographiques et astrophysiques

In this paper we provide an algorithm allowing to solve the variational Bayesian issue as a functional optimization problem. The main contribution of this paper is to transpose a classical iterative algorithm of optimization in the metric space of measures involved in the Bayesian methodology. Once given the convergence properties of this algorithm, we consider its application to large dimensio...

Problèmes de communication dans les systèmes distribués: ruptures et corruptions

Résolution coopérative de problèmes intégrant planification et interaction

This article deals with a human model of cooperative problem solving based on a psychological experiment. Our main goal is to improve the design of open multi-agent systems able to interact with humans. We aim at analyzing, modelling and simulating human capabilities of planning and interacting in a cooperative problem solving context. This paper goes on to present an original architecture call...