Seminar Details
2005-11-15 (14.00 pm) : Spread of Diseases in Large Social Networks
At Auditoire Euler
Organized by Mathematical Engineering
Speaker :
de Kerchove D'Exaerde, Cristobald
Abstract :
This talk gives an overview of the analysis of a real
large phone calls networks. In those networks, nodes
are handsets and connections are calls, moreover its
connections change over time and each node has some evolving state.
Such a network has several interesting properties that will be discussed
like its Scale Free shape and the dynamicity of the states. The main part
will concern the identification of influent nodes in the spread of technology.
These nodes are called the leaders, and we use the background of the mathematical
theory of infectious diseases to describe the process. Three methods will be
exposed: first the algorithm of S. Brin and L. Page used by google for its Page
Rank, second an algorithm based on similarity between two graphs, and third the
definition of Social Leader. Eventually, some results will conclude the presentation.