This is the program for the 2010 Joint Statistical Meetings in Vancouver, British Columbia.

Abstract Details

Activity Number: 384
Type: Invited
Date/Time: Tuesday, August 3, 2010 : 2:00 PM to 3:50 PM
Sponsor: Section on Statistical Computing
Abstract - #306263
Title: Time-Varying Networks: Reverse Engineering and Analyzing Rewiring Social and Genetic Interactions
Author(s): Eric Xing*+
Companies: Carnegie Mellon University
Address: 5000 Forbes Ave, Pittsburgh, PA, 15213, USA

While there is a rich literature in modeling static or temporally invariant networks, until recently, little has been done toward modeling the dynamic processes underlying rewiring networks, and on recovering such networks when they are not observable. In this talk, I will present a new formalism for modeling network evolution over time based on temporal exponential random graphs, and several new algorithms for estimating the structure of time evolving probabilistic graphical models underlying nonstationary time-series of nodal attributes. I will show some promising results on recovering the latent sequence of evolving social networks in the US Senate based it voting history, and the gene networks during the life cycle of fruit fly from microarray time course, at a time resolution only limited by sample frequency.

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