Search Results for author: Heiko Zimmermann

Found 6 papers, 2 papers with code

VISA: Variational Inference with Sequential Sample-Average Approximations

no code implementations14 Mar 2024 Heiko Zimmermann, Christian A. Naesseth, Jan-Willem van de Meent

We present variational inference with sequential sample-average approximation (VISA), a method for approximate inference in computationally intensive models, such as those based on numerical simulations.

valid Variational Inference

Topological Obstructions and How to Avoid Them

no code implementations NeurIPS 2023 Babak Esmaeili, Robin Walters, Heiko Zimmermann, Jan-Willem van de Meent

Incorporating geometric inductive biases into models can aid interpretability and generalization, but encoding to a specific geometric structure can be challenging due to the imposed topological constraints.

A Variational Perspective on Generative Flow Networks

no code implementations14 Oct 2022 Heiko Zimmermann, Fredrik Lindsten, Jan-Willem van de Meent, Christian A. Naesseth

Generative flow networks (GFNs) are a class of models for sequential sampling of composite objects, which approximate a target distribution that is defined in terms of an energy function or a reward.

Variational Inference

Nested Variational Inference

no code implementations NeurIPS 2021 Heiko Zimmermann, Hao Wu, Babak Esmaeili, Jan-Willem van de Meent

We develop nested variational inference (NVI), a family of methods that learn proposals for nested importance samplers by minimizing an forward or reverse KL divergence at each level of nesting.

Variational Inference

Learning Proposals for Probabilistic Programs with Inference Combinators

1 code implementation1 Mar 2021 Sam Stites, Heiko Zimmermann, Hao Wu, Eli Sennesh, Jan-Willem van de Meent

Proposals in these samplers can be parameterized using neural networks, which in turn can be trained by optimizing variational objectives.

Amortized Population Gibbs Samplers with Neural Sufficient Statistics

1 code implementation ICML 2020 Hao Wu, Heiko Zimmermann, Eli Sennesh, Tuan Anh Le, Jan-Willem van de Meent

We develop amortized population Gibbs (APG) samplers, a class of scalable methods that frames structured variational inference as adaptive importance sampling.

Variational Inference

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