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Zhen Chen

Principal Researcher, JD.com

1 paper at NeurIPS 2025

OpenReview· Semantic Scholar· Google Scholar

Poster Session 5

Friday, December 5, 2025 · 11:00 AM → 2:00 PM

Exhibit Hall C,D,E

TANDEM: Bi-Level Data Mixture Optimization with Twin Networks

#3417 · Jiaxing Wang, Deping Xiang, Jin Xu, Mingyang Yi, Guoqiang Gong, Zicheng Zhang, Haoran Li, pengzhang liu, Zhen Chen, Ke Zhang, Ju Fan, Qixia Jiang

A versatile data mixture ratio optimization framework for LLM training that enjoy both theoretical and practical advantages.