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Sarah Liaw

3 accepted papers

2025

A Renormalization Group Framework for Scale-Invariant Feature Learning in Deep Neural Networks (Student Abstract)

AAAI 2025technical

We propose a framework that uses renormalization group (RG) theory from statistical physics to analyze and optimize the hierarchical feature learning process in deep neural networks. Here, the layer-wise transformations in deep networks can be viewed as analogous to RG transformations, with each lay…

Cited by 0SourcePDFScholar
2025

Feel-Good Thompson Sampling for Contextual Bandits: a Markov Chain Monte Carlo Showdown

NeurIPS 2025poster

Thompson Sampling (TS) is widely used to address the exploration/exploitation tradeoff in contextual bandits, yet recent theory shows that it does not explore aggressively enough in high-dimensional problems. Feel-Good Thompson Sampling (FG-TS) addresses this by adding an optimism bonus that biases…

Cited by 0SourcecodeScholar
2025

Learning Local Neighborhoods of Non-Gaussian Graphical Models

AAAI 2025technical

Identifying the Markov properties or conditional independencies of a collection of random variables is a fundamental task in statistics for modeling and inference. Existing approaches often learn the structure of a probabilistic graph, which encodes these dependencies, by assuming that the variables…