Conditional Bayesian Quadrature

Abstract

We propose a novel approach for estimating conditional or parametric expectations in the setting where obtaining samples or evaluating integrands is costly. Through the framework of probabilistic numerical methods (such as Bayesian quadrature), our novel approach allows to incorporates prior information about the integrands especially the prior smoothness knowledge about the integrands and the conditional expectation. As a result, our approach provides a way of quantifying uncertainty and leads to a fast convergence rate, which is confirmed both theoretically and empirically on challenging tasks in Bayesian sensitivity analysis, computational finance and decision making under uncertainty.

Publication
In Conference on Uncertainty in Artificial Intelligence
Masha Naslidnyk
Masha Naslidnyk
PhD Student
François-Xavier Briol
François-Xavier Briol
Associate Professor