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ConceptVariational Inference / VI / 均值场变分推断

Variational Inference

A core method for approximate Bayesian inference that reformulates posterior computation as an optimization problem, approximating the true posterior with a parameterized distribution by maximizing the evidence lower bound (ELBO). Mean-field variational inference, which assumes independence among parameters, is the most commonly used approximation strategy.

Timeline (last 90 days)

Oct 18

On synthetic microgrid trajectories, sampling-based generative heads (lightweight diffusion or flow-matching heads) achieved the best calibration, outperforming variational inference and Monte Carlo Dropout/deep ensembles.

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Oct 12

This study proposes a scalable variational inference framework for inference over non-Gaussian spatial fields.

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Oct 8

In Bayesian neural networks with continuously increasing width M, the KL divergence regularization term in the ELBO gradually overwhelms the expected log-likelihood term, causing the variational predictive distribution to degenerate into the prior predictive distribution.

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Sep 12

Reverse KL divergence is mode-seeking, while forward KL divergence is mean-seeking.

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