Catherine Berrut

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With recommender systems, users receive items recommended on the basis of their profile. New users experience the cold start problem: as their profile is very poor, the system performs very poorly. In this paper, classical new user cold start techniques are improved by exploiting the cold user data, i.e. the user data that is readily available (e.g. age,(More)
In this paper we present a variety of browsing interfaces for digital video information. The six interfaces are implemented on top of Físchlár, an operational recording, indexing, browsing and playback system for broadcast TV programmes. In developing the six browsing interfaces, we have been informed by the various dimensions which can be used to(More)
This paper describes a system for an image retrieval system in which relevance related and system-use related user strategies can be performed. The query supports, in addition to classical topical inputs, strategic parameters that can be set by the user, either directly or via the visualization of retrieved images that are organized with respect to which(More)
<italic>This paper focuses on the RIME system aimed to the indexing of medical reports in a multimedia environment. This particular application is viewed as representative of a large set of still unanswered needs of large communities of users: domain experts dealing with on-line specialized documentation such as software engineers, medical specialists and(More)
We describe in this paper a prototype 1 , PRIME, of a mul-timedia medical information retrieval system. The documents managed by PRIME are patient records, which are composed of administrative data, textual reports, and Magnetic Resonance Images. PRIME is developed on top of the object oriented DBMS O 2 , and its interface can be any WWW-navigator(More)
RÉSUMÉ Il existe un grand nombre de modèles de recherche d'information chacun ayant pour but de répondre au mieux aux attentes des utilisateurs. Le modèle que nous proposons se base sur une formulation précise de la requête reflétant le besoin de l'utilisateur : Chaque terme de la requête est augmenté par deux critères, l'un exprimant l'obligation ou non de(More)
Most of Information Retrieval (IR) systems are still based on bag of word paradigm. This is a strong limitation if one needs high precision answers. For example, in restricted domain, like medicine, user builds short and precise query, like " Show me chest CT images with emphysema. " , and expects from the system precise answers. In such a case, the use of(More)