The Expxorcist: Nonparametric Graphical Models Via Conditional Exponential Densities

Part of Advances in Neural Information Processing Systems 30 (NIPS 2017)

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Authors

Arun Suggala, Mladen Kolar, Pradeep K. Ravikumar

Abstract

Non-parametric multivariate density estimation faces strong statistical and computational bottlenecks, and the more practical approaches impose near-parametric assumptions on the form of the density functions. In this paper, we leverage recent developments to propose a class of non-parametric models which have very attractive computational and statistical properties. Our approach relies on the simple function space assumption that the conditional distribution of each variable conditioned on the other variables has a non-parametric exponential family form.