Yichen You

Undergraduate Student
Tsinghua University
yiyouyc22yyc@gmail.com

About Me

I’m Yichen You, an undergraduate student at Tsinghua University.
Interests:
- Academic: Efficient Deep Learning, Reasoning
- Personal: Movies, Badminton, Squash
Education:
- Current: Undergraduate at Tsinghua University (2022.09 - Now)
- Previous: The Middle School Attached to Northwestern Polytechnical University
Originally from Pucheng, Shaanxi (Born: 2003.12.15)

Selected Awards/Honors

Competitions

Global 2nd Place (of 2212 Teams) AI Mathematical Olympiad - Progress Prize 2 2025.04
- Yichen You, Xuefei Ning, Zinan Lin — News · Solution · Video
National 3rd Prize 8th Loongson Cup 2024.08
- Yichen You (Individual MIPS Track) — News · Solution
University 1st Prize, PCB Award 26th Hardware Design Competition 2023.09
- Team Leader — News · Solution · Video
University 2nd Prize Huiye Cup 6th Software Design Competition 2023.04
- Team Leader — News · Solution · Video

Scholarships

Dai Yusen Innovation Scholarship (Comprehensive Excellence) 2024.10
National Scholarship (Comprehensive Excellence) 2023.10

Others

Five-Star Volunteer Tsinghua University 2025.05
Best Poster Award Southeast Asia Sustainable Development Innovation Forum 2024.06

Selected Projects

AIMO2

AI Mathematical Olympiad - Progress Prize 2

Yichen You, Xuefei Ning, Zinan Lin

Kaggle AIMO2, 2025.

Demo Code

Hardware Design

Multifunctional Bluetooth Gloves

26th Hardware Design Competition, 2023.09

Demo Code

Publications

arXiv 2026

Post-Trained MoE Can Skip Half Experts via Self-Distillation

Xingtai Lv^†, Li Sheng^†, Kaiyan Zhang^†, Yichen You, Siyan Gao, Xueheng Luo, Yuxin Zuo, Yuchen Fan, Junlin Yang, Ganqu Cui, Bingning Wang, Fan Yang, Youbang Sun, Ning Ding, Bowen Zhou

arXiv preprint, 2026.

PDF Code

ICML 2026

Think-at-Hard: Selective Latent Iterations to Improve Reasoning Language Models

Tianyu Fu^†, Yichen You^†, Zekai Chen, Guohao Dai, Huazhong Yang, Yu Wang

ICML 2026; ICLR 2026 Workshop (Oral).

PDF Code Demo

NeurIPS 2025

Roads to Rome (R2R): Efficiently Navigating Divergent Reasoning Paths with Small-Large Model Token Routing

Tianyu Fu^†, Yi Ge^†, Yichen You, Enshu Liu, Zhihang Yuan, Guohao Dai, Shengen Yan, Huazhong Yang, Yu Wang

NeurIPS 2025.

PDF Code Demo

MLSys 2025

HyC-LoRA: Memory Efficient LoRA Fine-tuning with Hybrid Activation Compression

Yujin Wang, Shunan Dong, Zongle Huang, Yichen You, Liu He, Huazhong Yang, Yongpan Liu, Hongyang Jia

MLSys 2025.

PDF Code

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