Xuyuan Xiong

Undergrad student, Shanghai Jiaotong University

Joined

November 2023

Names

Xuyuan Xiong (Preferred)

Emails

****@sjtu.edu.cn (Confirmed)

Personal Links

Career & Education History

Undergrad student

Shanghai Jiaotong University (sjtu.edu.cn)

2021 – Present

Advisors, Relations & Conflicts

Advisor

2022 – 2026

Expertise

Generative Modeling

2025 – Present

Deep Learning

2024 – Present

Publications

HYBRIDMIND: Meta Selection of Natural Language and Symbolic Language for Enhanced LLM Reasoning
Simeng Han, Tianyu Liu, Chuhan Li, Xuyuan Xiong, Arman Cohan
- MATH-AI 2025 Poster
- Readers: Everyone
Taming Polysemanticity in LLMs: Theory-Grounded Feature Recovery via Sparse Autoencoders
Siyu Chen, Heejune Sheen, Xuyuan Xiong, Tianhao Wang, Zhuoran Yang
- ICLR 2026 Poster
- Readers: Everyone
From Weak Data to Strong Policy: Q-Targets Enable Provable In-Context Reinforcement Learning
Xuyuan Xiong, Yichen Lin, Xue Wang, Mike Mingcheng Wei, Tao Yao
- Submitted to ICLR 2026
- Readers: Everyone
HYBRIDMIND: Meta Selection of Natural Language and Symbolic Language for Enhanced LLM Reasoning
Simeng Han, Tianyu Liu, Chuhan Li, Xuyuan Xiong, Arman Cohan
- XLLM-Reason-Plan
- Readers: Everyone
SPOT: Scalable Policy Optimization with Trees for Markov Decision Processes
Xuyuan Xiong, Pedro Chumpitaz-Flores, Kaixun Hua, Cheng Hua
- NeurIPS 2025 poster
- Readers: Everyone

Co-Authors