La prédiction algorithmique comme activité sociale

Algorithmique des courbes algébriques pour la cryptologie

In this memoir, we present various works on the theme of algorithms for algebraic curveswith a view towards cryptology. We describe algorithms for computing discrete logarithms,which is a problem whose difficulty is the key to the security of curve-based cryptosystems.A first class of algorithms contains «index-calculus»-like techniques ; a second class containsmethods relying o...

De la recherche sociale d'information à la recherche collaborative d'information

In this paper, we explain social information retrieval (SIR) and collaborative information retrieval (CIR). We see SIR as a way of knowing who to collaborate with in resolving an information problem while CIR entails the process of mutual understanding and solving of an information problem among collaborators. We are interested in the transition from SIR to CIR hence we developed a communicatio...

Validation sociale d'annotations collectives : argumentation bipolaire graduelle pour la théorie sociale de l'information

Our field of investigation concerns human annotation of electronic resources. We identify some issues of annotation systems concerning their scalability: a resource more and more annotated is less and less exploitable by individuals. However, scalability is a key issue for a system usability. That is the reason why we propose a way to socially validate collective annotations in accordance with ...

Algorithmique des courbes hyperelliptiques et applications à la cryptologie

La riqualificazione energetica dell’edilizia sociale nei contesti italiano e olandese

In the context of a Post-Doc Research, still in progress (1), renovation of housing built from 1946 to 1970 in Europe has been individualized as a field of research. As a matter of fact it presents, among other issues, high energy consumption and low indoor air quality. Through an analytical comparison between two very different contexts, Italy and the Netherlands, the definition of two tools ̶ ...