Search Results for author: Lorenz Vaitl

Found 3 papers, 1 papers with code

Fast and Unified Path Gradient Estimators for Normalizing Flows

no code implementations23 Mar 2024 Lorenz Vaitl, Ludwig Winkler, Lorenz Richter, Pan Kessel

Recent work shows that path gradient estimators for normalizing flows have lower variance compared to standard estimators for variational inference, resulting in improved training.

Computational Efficiency Variational Inference

Gradients should stay on Path: Better Estimators of the Reverse- and Forward KL Divergence for Normalizing Flows

no code implementations17 Jul 2022 Lorenz Vaitl, Kim A. Nicoli, Shinichi Nakajima, Pan Kessel

We propose an algorithm to estimate the path-gradient of both the reverse and forward Kullback-Leibler divergence for an arbitrary manifestly invertible normalizing flow.

Variational Inference

Path-Gradient Estimators for Continuous Normalizing Flows

1 code implementation17 Jun 2022 Lorenz Vaitl, Kim A. Nicoli, Shinichi Nakajima, Pan Kessel

Recent work has established a path-gradient estimator for simple variational Gaussian distributions and has argued that the path-gradient is particularly beneficial in the regime in which the variational distribution approaches the exact target distribution.

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