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Extending Mean-Field Variational Inference via Entropic Regularization: Theory and Computation
April 16, 2024, 4:43 a.m. | Bohan Wu, David Blei
cs.LG updates on arXiv.org arxiv.org
Abstract: Variational inference (VI) has emerged as a popular method for approximate inference for high-dimensional Bayesian models. In this paper, we propose a novel VI method that extends the naive mean field via entropic regularization, referred to as $\Xi$-variational inference ($\Xi$-VI). $\Xi$-VI has a close connection to the entropic optimal transport problem and benefits from the computationally efficient Sinkhorn algorithm. We show that $\Xi$-variational posteriors effectively recover the true posterior dependency, where the dependence is downweighted …
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