With the increase of resource-sharing web sites such as YouTube1 and Flickr2,
personalized search becomes more important and challenging, as users demand higher …

Recently, some systems have allowed users to rate and annotate resources, eg, MovieLens,
and we consider that it provides a way to identify favorite and non-favorite tags of a user by …

With the increase in resource-sharing websites such as YouTube and Flickr, many shared
resources have arisen on the Web. Personalized searches have become more important …

This paper presents a novel and practical model for behavioral user profile modeling using
causal relationships. In this model, causal relationships, which represent the influence …

With the increase of media-sharing web sites such as YouTube and Flickr, there are more
and more shared multimedia resources on the Web. Multimedia search becomes more …

Tracking of human sperm cells is a challenging task in computer vision due to the motion
uncertainty. In this paper, we propose an efficient and effective algorithm for sperm cells …

The Web is currently characterised by user contribution. As a result, content is generated in
an uncontrolled way leading to the so-called “information overload”. The role of information …

Les travaux présentés dans cette thèse s' articulent principalement autour des folksonomies:
une structure de données collaborative ayant émergé avec le Web 2.0. Les besoins accrus …

L'annotation collaborative offre aux utilisateurs la possibilité de décrire des ressources avec
des mots-clés (tags). Un tag décrit l'intérêt que l'utilisateur porte à une ressource …

Recommender systems, which have emerged in response to the problem of information
overload, provide users with recommendations of contents that are likely to fit their needs …