Transport Score Climbing: Variational Inference Using Forward KL and Adaptive Neural Transport
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Abstract (arXiv)
Variational inference often minimizes the "reverse" Kullbeck-Leibler (KL) KL(q||p) from the approximate distribution q to the posterior p. Recent work studies the "forward" KL KL(p||q), which unlike reverse KL does not lead to variational approximations that underestimate uncertainty. This paper introduces Transport Score Climbing (TSC), a method that optimizes KL(p||q) by using Hamiltonian Monte Carlo (HMC) and a novel adaptive transport map. The transport map improves the trajectory of HMC by acting as a change of variable between the latent variable space and a warped space. TSC uses HMC samples to dynamically train the transport map while optimizing KL(p||q). TSC leverages synergies, where better transport maps lead to better HMC sampling, which then leads to better transport maps. We demonstrate TSC on synthetic and real data. We find that TSC achieves competitive performance when training variational autoencoders on large-scale data.
Key facts. Cited by 8 papers in the map (data through 7 Oct 2026). Builds on 23 of its 58 references that are in the map. First posted on arXiv 3 Feb 2022.
Builds on
23 of 58 references.
References · 23
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11 more
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- 2018Avoiding Latent Variable Collapse With Generative Skip Modelscited by 47
- 2020Markovian Score Climbing: Variational Inference with KL(p||q)cited by 46
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Built on by
Citing papers per year: 2022: 2; 2023: 0; 2024: 3; 2025: 2; 2026: 1.
8 papers.
- 2022A Variational Perspective on Generative Flow Networkscited by 39
- 2024Markovian Flow Matching: Accelerating MCMC with Continuous Normalizing Flowscited by 9
- 2022Markov Chain Score Ascent: A Unifying Framework of Variational Inference with Markovian Gradientscited by 6
- 2024Inclusive KL Gradient Flows: Otto-Wasserstein, Fisher-Rao-Gaussian, and Local-Estimator Dynamicscited by 4
- 2024VISA: Variational Inference with Sequential Sample-Average Approximationscited by 1
- 2025Globally Convergent Variational Inferencecited by 1
- 2025Neural Posterior Estimation with Autoregressive Tiling for Detecting Objects in Astronomical Imagescited by 1
- 2026Amortized Factor Inference Networks for Posterior Inferencecited by 0
- 2026Amortized Factor Inference Networks for Posterior Inference26 May 2026
- 2025Neural Posterior Estimation with Autoregressive Tiling for Detecting Objects in Astronomical Images3 Oct 2025
- 2025Globally Convergent Variational Inference14 Jan 2025
- 2024Inclusive KL Gradient Flows: Otto-Wasserstein, Fisher-Rao-Gaussian, and Local-Estimator Dynamics31 Oct 2024
- 2024Markovian Flow Matching: Accelerating MCMC with Continuous Normalizing Flows23 May 2024
- 2024VISA: Variational Inference with Sequential Sample-Average Approximations14 Mar 2024
- 2022A Variational Perspective on Generative Flow Networks14 Oct 2022
- 2022Markov Chain Score Ascent: A Unifying Framework of Variational Inference with Markovian Gradients13 Jun 2022