Frechet distance is one of the most fundamental measures used to compute dissimilarity between two sequences of points (e.g., between two signatures recorded by an electronic pen). It is often referred to as the “dog-leash” distance. This is because it corresponds to the minimal length of a “leash” so that a dog and its owner can traverse their respective sequences from beginning to end, while ...

Gil Kalai introduced the shifting-theoretic upper bound relation to characterize the f -vectors of Gorenstein* complexes (or homology spheres) by using algebraic shifting. In the present paper, we study the shifting-theoretic upper bound relation. First, we will study the relation between exterior algebraic shifting and combinatorial shifting. Second, by using the relation above, we will prove ...

We introduce in this article a new method to calculate all absolute and relatif primitive invariants of finite groups. This method is inspired from K. Girstmair which calculate an absolute primitive invariant of minimal degree. Are presented two algorithms, the first one enable us to calculate all primitive invariants of minimal degree, and the second one calculate all absolute or relative prim...

Résumé. Nous présentons dans cet article les méthodes employées et les résultats obtenus en réponse au Défi EGC 2016. Notre approche repose d’une part sur des chaînes automatiques de traitements linguistiques en français et en anglais utilisant le plus possible des ressources et outils publics et d’autre part sur un environnement d’exploration des données basé sur les systèmes d’information log...

Résumé. Nous présentons dans cet article un aperçu de la fouille visuelle de données. Pour commencer, nous situons ce domaine par rapport à d’autres approches et nous en rappelons les principes fondateurs. Ensuite, nous montrons qu’il existe de nombreux points de vue pour aborder les travaux en fouille visuelle de données : les données ou connaissances à visualiser, la tâche à accomplir, la rep...

This paper places on record the clinical activity of the hospital facilities run by 22 Field Hospital on Exercise SAIF SEREEA II in Oman from August to November 2001. There were 1322 episodes of illness resulting in a hospital admission. The mean rate of admission was 1.96 patients per thousand per day (SD 13.62). The main causes of admission were gastrointestinal illness, conditions related to...