← Search

Harrison Zhu

3 accepted papers

2022

Grassmann Stein Variational Gradient Descent

AISTATS 2022poster

Stein variational gradient descent (SVGD) is a deterministic particle inference algorithm that provides an efficient alternative to Markov chain Monte Carlo. However, SVGD has been found to suffer from variance underestimation when the dimensionality of the target distribution is high. Recent develo…

2020

Bayesian Probabilistic Numerical Integration with Tree-Based Models

NeurIPS 2020poster

Bayesian quadrature (BQ) is a method for solving numerical integration problems in a Bayesian manner, which allows users to quantify their uncertainty about the solution. The standard approach to BQ is based on a Gaussian process (GP) approximation of the integrand. As a result, BQ is inherently lim…