2017

A-NICE-MC: Adversarial Training for MCMC

Song, Jiaming, Zhao, Shengjia, Ermon, Stefano

Understand

Existing Markov Chain Monte Carlo (MCMC) methods are either based on general-purpose and domain-agnostic schemes which can lead to slow convergence, or hand-crafting of problem-specific proposals by an expert.

  • We propose A-NICE-MC, a novel method to train flexible parametric Markov chain kernels to produce samples with desired properties.
  • First, we propose an efficient likelihood-free adversarial training method to train a Markov chain and mimic a given data distribution.
  • Then, we leverage flexible volume preserving flows to obtain parametric kernels for MCMC.

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