2021

Exact Langevin Dynamics with Stochastic Gradients

Garriga-Alonso, Adrià, Fortuin, Vincent

Understand

Stochastic gradient Markov Chain Monte Carlo algorithms are popular samplers for approximate inference, but they are generally biased.

  • We show that many recent versions of these methods (e.g.
  • Chen et al.
  • (2014)) cannot be corrected using Metropolis-Hastings rejection sampling, because their acceptance probability is always zero.

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