Zixiao Wang (王子骁)

Hi there !I am Zixiao Wang, a third-year undergraduate student at Peking University, majoring in Artificial Intelligence in Zhi Class (an honors program directed by Prof. Baoquan Chen) at the School of Intelligence Science and Technology. Also, I am currently exchanging at School of Computer Science at Carnegie Mellon University.

My research focuses on Large Language Models, Optimization and Multimodal Learning. I am particularly interested in developing efficient and effective optimization algorithms for multiple training stages of large language models, as well as analyzing the theoretical properties behind the training process.

I am honored to be advised by Prof. Huishuai Zhang and Prof. Dongyan Zhao in Wangxuan Institute of Computer Technology. I am also very fortunate to be currently working closely with Prof. Jiawen Zhang from University of Wisconsin-Madison. Previously, I also had the privilege to work with Prof. Yang Liu.

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News

2026-1   Releasesd new work on Arxiv: OLion: Approaching the Hadamard Ideal by Intersecting Spectral and L inf Implicit Biases!

2025-7   Submitted Training-free Video Temporal Grounding Enhanced by Contextual Region Cue based Test-time Adaptation to AAAI 2026!

Research

I'm interested in large language models, optimization algorithms, and multimodal learning.

We introduce OLion, a memory-efficient optimizer that combines spectral control from Muon-style orthogonalized updates with ℓ_∞-style coordinate control from Lion-style sign updates.

We present a novel training-free video-level adapter to enhance video temporal grounding by importing in-domain context andregion-wisevisual cues.

Experience

Honors & Awards

2023-24   Leo KoGuan Scholarship (20000 CNY, top 100 students in PKU per year)
2023-24   Peking University Merit Student
2023-24   Peking University Academic Outstanding Award

Miscellaneous

"Per Aspera Ad Astra."
— Through Hardships to the Stars

Website template from Jon Barron.