De quels devenirs-minoritaires sommes-nous les chercheur·e·s ?

Recherche de microblogs : quels critères pour raffiner les résultats des moteurs usuels de RI ?

The last few years saw the advent of microblogging platforms, such as Twitter. Such an appeal may be due to platforms’ features allowing to easily and quickly share information in real-time. Microbloggers, while posting microblogs, search for fresh information related to their interests. Finding good results concerning the given subjects needs to consider the characteristics of microblogs, such...

Comment Diffusons-nous sur les Réseaux Sociaux ?

Information, influences et propagation via les médias en ligne Communication de recherche RESUME L'émergence des nouveaux moyens de communication tels que les blogs, les journaux en ligne ou les réseaux sociaux nous permettent d'aller plus loin dans la compréhension des comportements humains. En effet, ces espaces d'échange publiques sont aujourd'hui fermement ancrés dans nos sociétés modernes ...

A Note on Signs of Kloosterman Sums (une Note Sur Les Signes Des Sommes De Kloosterman)

We prove that the sign of Kloosterman sums Kl(1, 1;n) changes infinitely often as n runs through the square-free numbers with at most 15 prime factors. This improves on a previous result by Sivak-Fischler who obtained 18 instead of 15. Our improvement comes from introducing an elementary inequality which gives lower and upper bounds for the dot product of two sequences whose individual distribu...

Epiconvergence D’une Suite De Sommes En Niveaux De Fonctions Convexes

We consider the problem of minimizing the max of two convex functions from both approximation and sensitivity point of view.This lead up to study the epiconvergence of a sequence of level sums of convex functions and the related dual problems.

Les rongeurs de la region de Tehran