The comparison of manually annotated medical images can be done using the comparison of keywords in a lexical way or using the existing medical thesauri to calculate semantic similarity. In this paper, first we introduce the KWSim measure, a fully automated technique of measuring semantic similarity by mapping concepts(keywords) to different medical thesauri and examining the “is-a” relation ty...

We describe here a method to use a graph language modeling approach for image retrieval and image categorization. Since photographic images are 2D data, we first use image regions (mapped to automatically induced concepts) and then spatial relationships between these regions to build a complete image graph representation. Our method deals with different scenarios, where isolated images or group...

We describe here a method to use a language modeling approach for image retrieval and image categorization. Since photographic images are 2D data, we first use image regions (mapped to automatically induced concepts) and then spatial relationships between these regions to build a complete image graph representation. Our method deals with different scenarios, where isolated images or groups of i...

This article deals with the problem of recognition of semi-structured documents image. The aim is to detect a document and to extract the region of interest containing it. Initially, an exemple of document is given by the user and a set of interest points are extracted from this query image. In a second step, a set of interest points is extracted from each image to analyse and is matched with t...

Mots clés : webométrie, fouille de données d’usage du Web, indicateurs de la science, comportement utilisateur Web, analyse co-usage, serveur Web

This article describe a mechanism of well-typed communications able to abstract the underlying physical transport protocol MOTS-CLÉS : communication typé, migration de code, middleware

In the first design stage, image reference plays a double role of means of formulation and resolution of problems. In our approach, we consider image reference as a support of creation activity to generate ideas and we propose a tool for navigation in references by image in order to assist daylight ambience design. Within this paper, we present, in a first part, the semantic indexation method t...

Résumé. L’accès aux documents multimédia, dans une archive audiovisuelle, dépend en grande partie de la quantité et de la qualité des métadonnées attachées aux documents, notamment la description de leur contenu. Cependant, l’annotation manuelle des collections est astreignante pour le personnel. De nombreuses archives évoluent vers des méthodes d’annotation (semi-)automatiques pour la création...

This article presents a quadtree-based data structure for effective indexing of images. An image is represented by a multi-level feature vector, computed by a recursive decomposition of the image into four quadrants and stored as a full fixed-depth balanced quadtree. A node of the quadtree stores a feature vector of the corresponding image quadrant. A more general quadtree-based structure calle...

Résumé : L’exploitation des liens d’identité entre ressources RDF permet aux applications de combiner des données issues de différentes sources. Les approches permettant de lier des données sont largement fondées sur l’existence de clés éventuellement composites. Ces clés étant rarement disponibles, des approches récentes se sont intéressées à la découverte automatique de clés à partir de donné...