« Les temps changent »!

Les inscriptions du temps sur les cadrans solaires

Les temps du document et la recherche d'information

This article presents a survey of the interactions between information retrieval and temporal aspects of documents. First the time evoked by the discourse and the historic situation time of the documents themselves are distinguished. The universe of discourse time should be taken into account in the indexation step of information retrieval. It can be processed by named entities extraction and m...

Claude Bernard et les Problèmes de son Temps

Dr. Brooke serves well to reveal him in a more just and favourable light than that presented by many earlier and more recent writers. The message for medical historians is clear when he writes 'Strangely the diagnosis of porphyria which exonerates George III from so much speculative psychologizing brings him nearer to us as a human being'. An important function of the doctor historian is to see...

Note sur les temps de service résiduels dans les systèmes type M/G/c

RÉSUMÉ. Lorsque l’analyse exacte de certains modèles paraît difficile, on recherche des solutions approchées. C’est le cas de la file M/G/c pour laquelle les paramètres de performances moyens peuvent être calculés de façon approchée en estimant 1) le minimum des temps restants pour terminer les services des clients en cours de service et 2) la probabilité pour un client arrivant dans la file d’...

Sûreté temporelle pour les systèmes temps réel multiprocesseurs. (Temporal safety for real-time multiprocessor systems)

The hard real-time systems are characterized by sets of tasks for which are known the deadline, the arrival model (frequency) and the Worst-Case Execution Time (WCET). We focus on the scheduling of these systems on multiprocessor platforms. One of the main issues of this topic is to ensure that all deadlines are met. We go further by focusing on the temporal safety which we characterized by the...