Séminaire Donnees et APprentissage ArtificielRSS

Global Seismic Monitoring: A Bayesian Approach


22/11/2012
Intervenant(s) : Stuart Russell* (University of California, Berkeley et LIP6, UPMC)
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.
* L'orateur est soutenu par, et cette présentation est donnée sous les auspices de, la Chaire Blaise Pascal, financée par le Conseil Régional d'Ile de France et la Fondation de l'École Normale Supérieure.
The speaker is supported by, and this talk is given under the auspices of, the Chaire Blaise Pascal, funded by the Conseil Regional d'Ile de France and the Fondation de l'École Normale Supérieure.
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Adrien.Revault-d'Allonnes (at) nulllip6.fr
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