Weijie Su

@wjsu.bsky.social

Associate Professor at University of Pennsylvania

Great minds think alike! Alan Turing cracked Enigma in WWII; Brad Efron asked how many words Shakespeare knew. They used the same method. We use this method for LLM evaluation—to evaluate certain unseen capabilities of LLMs: arxiv.org/abs/2506.02058

Evaluating the Unseen Capabilities: How Many Theorems Do LLMs Know?

Accurate evaluation of large language models (LLMs) is crucial for understanding their capabilities and guiding their development. However, current evaluations often inconsistently reflect the actual ...

arxiv.org

We posted a paper on optimization for deep learning: arxiv.org/abs/2505.21799 Recently there's a surge of interest in *structure-aware* optimizers: Muon, Shampoo, Soap. In this paper, we propose a unifying preconditioning perspective, offer insights into these matrix-gradient methods.

PolarGrad: A Class of Matrix-Gradient Optimizers from a Unifying Preconditioning Perspective

The ever-growing scale of deep learning models and datasets underscores the critical importance of efficient optimization methods. While preconditioned gradient methods such as Adam and AdamW are the ...

arxiv.org

Our paper "The ICML 2023 Ranking Experiment: Examining Author Self-Assessment in ML/AI Peer Review" will appear in JASA as a Discussion Paper: arxiv.org/abs/2408.13430 It's a privilege to work with such a wonderful team: Buxin, Jiayao, Natalie, Yuling, Didong, Kyunghyun, Jianqing, and Aaroth.

The ICML 2023 Ranking Experiment: Examining Author Self-Assessment in ML/AI Peer Review

We conducted an experiment during the review process of the 2023 International Conference on Machine Learning (ICML), asking authors with multiple submissions to rank their papers based on perceived q...

arxiv.org