Lyon, entre Empire et Royaume (843-1601). Textes et documents

Relation entre le pouvoir toxique et le pouvoir antigene des toxines diphterique et tetanique

rapports entre science et valeurs

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Interactions entre le calcul de collocations et la catégorisation automatique de textes

In this paper we describe some interactions between collocations and automatic text categorization. First, we use the differents categories to extract strings (through collocations agglutinations) related to each categorie. Then we use these categories-specific strings to improve categorization. MOTS-CLÉS : collocations, catégorisation automatique de textes.

Darwin et la socialit\'e : entre anthropomorphisme et gradualisme

We propose, in this article, an analysis of the Darwin’s approach to sociality. Sociality is perfectly integrated into the selective model, and is caused by the same process as struggle for existence. Thus, the selective process does not prohibit demonstrating cooperation, but on the contrary, explains it. We will see that the unification of sociality, in a more adequate representation to mamma...

Descripteurs directionnels d’enlacement et d’entrelacement entre objets

The analysis of spatial relationships between objects in images plays a crucial role in various application domains related to pattern recognition and computer vision. In this article, we adress the issue of describing complex spatial configurations, where objects can be imbricated in each other. We formalize this notion with two new spatial relations called the enlacement and interlacement. We...