Global Seismic Monitoring: A Bayesian Approach
The United Nations Comprehensive Nuclear-Test-Ban Treaty Organization (CTBTO) has developed the International Monitoring System, a global network of seismic stations, to detect potential treaty violations. CTBTO software analyses the signals from this network to detect and localize the seismic events that caused them. This analysis problem can be reformulated in a Bayesian framework. I will describe a Bayesian seismic monitoring system, NET-VISA, based on generative probabilistic models of event occurrence and signal transmission and detection. NET-VISA reduces the number of missed events by a factor of 2 to 3 compared to the currently deployed system. It also finds events that are missed even by CTBTO's expert analysts.
Orateur(s) : Stuart Russell
Public : Tous
Date : 22 novembre 2012
Lieu : Campus Jussieu