Joint Colloquium in CMS and BBE

Monday December 18, 2017 4:00 PM

Scalable Bayesian Inference with Hamiltonian Monte Carlo

Speaker: Michael Betancourt, Department of Statistics, University of Warwick
Location: Annenberg 105

Despite the promise of big data, inferences are often limited not by sample size but rather by systematic effects. Only by carefully modeling these effects can we take full advantage of the data -- big data must be complemented with big models and the algorithms that can fit them. One such algorithm is Hamiltonian Monte Carlo, which exploits the inherent geometry of the posterior distribution to admit full Bayesian inference that scales to the complex models of practical interest. In this talk I will discuss the theoretical foundations of Hamiltonian Monte Carlo, elucidating the geometric nature of its scalable performance and stressing the properties critical to a robust implementation.

Series H. B. Keller Colloquium Series

Contact: Carmen Nemer-Sirois at (626) 395-4561 carmens@cms.caltech.edu