Published Papers
AlphaSteer: Learning Refusal Steering with Principled Null-Space Constraint
Leheng Sheng*, Changshuo Shen*, Weixiang Zhao, Junfeng Fang, Xiaohao Liu, Zhenkai Liang, Xiang Wang, An Zhang†, Tat-Seng ChuaInternational Conference on Learning Representations (ICLR) 2026, 25861–25904
arXiv:2506.07022
On Reasoning Strength Planning in Large Reasoning Models
Leheng Sheng, An Zhang†, Zijian Wu, Weixiang Zhao, Changshuo Shen, Yi Zhang, Xiang Wang, Tat-Seng ChuaAdvances in Neural Information Processing Systems 38 (NeurIPS), 62978–63012 (2026)
arXiv:2506.08390
Reasoning Can Be Restored by Correcting a Few Decision Tokens
Changshuo Shen, Leheng Sheng, Yichen Chen, An Zhang†, Xiang WangInternational Conference on Machine Learning (ICML) 2026
arXiv:2605.16874
Notes: * Equal contribution; † Corresponding author