Search Results for author: Joshua Chen

Found 3 papers, 2 papers with code

Bayesian model calibration for block copolymer self-assembly: Likelihood-free inference and expected information gain computation via measure transport

no code implementations22 Jun 2022 Ricardo Baptista, Lianghao Cao, Joshua Chen, Omar Ghattas, Fengyi Li, Youssef M. Marzouk, J. Tinsley Oden

We tackle this challenging Bayesian inference problem using a likelihood-free approach based on measure transport together with the construction of summary statistics for the image data.

Bayesian Inference Informativeness

A stochastic Stein Variational Newton method

1 code implementation19 Apr 2022 Alex Leviyev, Joshua Chen, Yifei Wang, Omar Ghattas, Aaron Zimmerman

Meanwhile, Stein variational Newton (SVN), a Newton-like extension of SVGD, dramatically accelerates the convergence of SVGD by incorporating Hessian information into the dynamics, but also produces biased samples.

Bayesian Inference

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