百晓学者学者目录

张驰

助理教授、教授,北京大学

精选作品

期刊论文

2026

Preserve Support, Not Correspondence: Dynamic Routing for Offline Reinforcement Learning

Zhan-Cun Mu, Guang-Yu Zhao, Yiwu Zhong, Chi Zhang

arXiv.org

2026

Seirênes: Adversarial Self-Play with Evolving Distractions for LLM Reasoning

Chi Zhang, Haibo Qiu, Qiming Zhang, Yu-Fei Xu, Xin-Bo Gao, Jing Zhang

arXiv.org

2026

GradCuit: Credit-Assigned Gradient Flow Enables Robust and Interpretable Test-Time Latent Reasoning

Zhaoxin Yu, Qian-Li Shen, Hengli Li, Zhaowei Zhang, Song-Chun Zhu, Chi Zhang, Zilong Zheng

2026

Metis: Learning to Jailbreak LLMs via Self-Evolving Metacognitive Policy Optimization

Hui-Lin Zhou, Jian Zhao, YiLu Zhong, Zhen-Wen Liang, Xiuyuan Chen, Yu-Chen Yuan, Tianle Zhang, Chi Zhang, Lan Zhang, Xue-Long Li

arXiv.org

2026

The Price Reversal Phenomenon: When Cheaper Reasoning Models End Up Costing More

Lingjiao Chen, Chi Zhang, Yeye He, Ion Stoica, Matei A. Zaharia, James Zou

arXiv.org

2026

DeFlow: Decoupling Behavior-Prior Modeling and Value Maximization for Offline Policy Extraction

Zhan-Cun Mu, Chi Zhang

2026

Towards Full Pipeline FP8 Reinforcement Learning for LLMs

Fan Chen, Ziheng Jiang, Zi-Yun Wei, Zheng Zhong, Du Li, Chi Zhang, Haibin Lin, Shivaram Venkataraman

2025

DAPO: An Open-Source LLM Reinforcement Learning System at Scale

Qiying Yu, Zheng Zhang, Ruofei Zhu, Yufeng Yuan, Xiaochen Zuo, Yu Yue, Tian-Tian Fan, Gaohong Liu, Lingjun Liu, Xin Liu, Hai-Bin Lin, Zhiqi Lin, Bole Ma, Guangming Sheng, Yuxuan Tong, Chi Zhang, Mofan Zhang, Wang Zhang, Hang Zhu, Jinhua Zhu, Jia-Ze Chen, Jiang-Jie Chen, Cheng-Yi Wang, Honglin Yu, Wei-Nan Dai, Yuxuan Song, Xiang Wei, Haodong Zhou, Jingjing Liu, Wei Ma, Ya-Qin Zhang, Lin Yan, Mu Qiao, Yong-Xu Wu, Ming-Xuan Wang

Neural Information Processing Systems

2025

FAPO: Flawed-Aware Policy Optimization for Efficient and Reliable Reasoning

Yuyang Ding, Chi Zhang, Jun-Tao Li, Hai-Bin Lin, Xin Liu, Min Zhang

arXiv.org

2025

Laminar: A Scalable Asynchronous RL Post-Training Framework

Guang-Ming Sheng, Yuxuan Tong, Borui Wan, Wang Zhang, Chao Jia, Xi-Bin Wu, Yuqi Wu, Xiang Li, Chi Zhang, Yanghua Peng, Haibin Lin, Xin Liu, Chuan Wu

European Conference on Computer Systems

2025

Seed1.5-Thinking: Advancing Superb Reasoning Models with Reinforcement Learning

ByteDance Seed Jiaze Chen, Tian-Tian Fan, Xin Liu, Lingjun Liu, Zhiqiang Lin, Mingxuan Wang, Cheng-Yi Wang, Xiangpeng Wei, Wenyuan Xu, Yufeng Yuan, Yu Yue, Lin Yan, Qi-Ying Yu, Xiaochen Zuo, Chi Zhang, Ruofei Zhu, Zhe-Cheng An, Zhihao Bai, Yu Bao, Xingyan Bin, Jiang-Jie Chen, Feng Chen, Hongmin Chen, Riwei Chen, Liangqiang Chen, Zixin Chen, Jin-Song Chen, Siyan Chen, Kaiyuan Chen, Zhi Chen, Jin Chen, Jie-Cao Chen, Jinxin Chi, Wei-Nan Dai, Ning Dai, Jiahui Dai, Shi-Han Dou, Ya-Ting Du, Zhengyin Du, Jian-Hui Duan, Chen Dun, Ting-Han Fan, Jiazhan Feng, Jun-Da Feng, Ziyuan Feng, Yuwei Fu, Wenqi Fu, Han Fu, Hao Ge, Hongyi Guo, Mingji Han, Li Han, Wenhao Hao, Xintong Hao, Qi-Peng He, J. He, Feng He, Wen Heng, Zehua Hong, Qingli Hou, Liang Hu, Shengding Hu, Nan Hu, Kai Hua, Qi Huang, Ziyue Huang, Hongzhi Huang, Zi-Hao Huang, Ting Huang, Wen-Hao Huang, Wei Jia, Bin Jia, Xiao-Ying Jia, Yuhua Jiang, Haobin Jiang, Ziheng Jiang, Kai-Hua Jiang, Chengquan Jiang, Jian-Peng Jiao, Xiaoran Jin, Xing Jin, Xunhao Lai, Zheng Li, Xiang Li, Liyi Li, Hongkai Li, Shengxian Wan, Ya Wang, Yunshui Li, Cheng-Gang Li, Niuniu Li, Siyu Li, Xi Li, Xiao Li, Ao-Yan Li, Yuntao Li, Nianning Liang, Xin-Nian Liang, Hai-Bin Lin, Weijian Lin, Ye Lin, Zhicheng Liu, Guan-Lin Liu, Chenxia Liu, Yan Liu, Gaohong Liu, Juncai Liu, Chun-Di Liu, Deyi Liu, Kaibo Liu, Siyao Liu, Qi Liu, Yong-Fei Liu, Kang Liu, Gan Liu, Boyi Liu, Rui Long, Weiqiang Lou, Chenwei Lou, Xiang Luo, Yao Luo, Cai-Ping Lv, Heyang Lv, Bole Ma, Qian-Li Ma, Hongzhi Ma, Yi-Yuan Ma, Jin Ma, Wen-tong Ma, Tingting Ma, Chen Mao, Qi-Yang Min, Zhen-Wu Nan, Guang-Han Ning, Jinxiang Ou, Haojie Pan, Renming Pang, Yang-Hua Peng, Tao Peng, Lihua Qian, Mu Qiao, M. Qu, Cheng Ren, Hongbin Ren, Y. Shan, Wei Shen, Ke Shen, Kai Shen, Guangming Sheng, Jinlong Shi, Wenlei Shi, Guang Shi, Shuai Cao, Yuxin Song, Zuquan Song, Jing Su, Yifan Sun, Tao Sun, Zewei Sun, Borui Wan, Zihan Wang, Xiao-Hui Wang, Xi Wang, Shu-Guang Wang, Jun Wang, Qinlong Wang, Chen-Yuan Wang, Shuai Wang, Changbao Wang, Jia-Qiang Wang, Shihan Wang, Xu-Wu Wang, Zai-Yuan Wang, Yuxuan Wang, Wenqi Wang, Taiqing Wang, Cheng-Zhi Wei, Houmin Wei, Zi-Yun Wei, Shufa Wei, Zheng Wu, Yong-Xu Wu, Yang Wu, Bo-Hong Wu, Shuangzhi Wu, Jing Wu, Ning Wu, Shuangzhi Wu, Jianmin Wu, Chenguang Xi, Fan Xia, Yu-Long Xian, L. Xiang, Boren Xiang, Bowen Xiao, Zhengliang Xiao, Xiaojun Xiao, Yongsheng Xiao, Chao Xin, Shu-Lin Xin, Yuwen Xiong, Jingjing Xu, Ziwen Xu, Chenyin Xu, Jiayi Xu, Yi-Fan Xu, Wei Xu, Yufei Xu, Shikun Xu, Shipeng Yan, Shen Yan, Qingping Yang, Xi Yang, Tianhao Yang, Yuehang Yang, Yuan Yang, Ximing Yang, Zeyu Yang, Guang Yang, Yifan Yang, Xuesong Yao, Bai-Ren Yi, Fan Yin, Jianian Yin, Ziqiang Ying, Xiang-Yu Yu, Honglin Yu, Song Yu, Menghan Yu, Huan Yu, Siyu Yuan, Junhong Yuan, Yutao Zeng, Tianyang Zhan, Zheng Zhang, Yun Zhang, Mofan Zhang, Wang Zhang, Ru Zhang, Zhi Zhang, Tianqi Zhang, Xin-Yi Zhang, Zhe-Xi Zhang, Sijun Zhang, Wenqiang Zhang, Xiang-Xiang Zhang, Yongtao Zhang, Yuyu Zhang, Ge Zhang, He Zhang, Yue Zhang, Renjie Zheng, Ningxin Zheng, Zhuolin Zheng, Yao-Wei Zheng, Chen Zheng, Xiaoyun Zhi, Wan-Jun Zhong, Chenghua Zhong, Zheng Zhong, Bao-Quan Zhong, Xun Zhou, Na Zhou, Huan Zhou, Hang Zhu, Defa Zhu, Wenjia Zhu, Lei Zuo

arXiv.org

2025

VAPO: Efficient and Reliable Reinforcement Learning for Advanced Reasoning Tasks

Yu Yue, Yufeng Yuan, Qi-Ying Yu, Xiaochen Zuo, Ruofei Zhu, Wenyuan Xu, Jia-Ze Chen, Cheng-Xiang Wang, Tian-Tian Fan, Zhengyin Du, Xiang Wei, Xiang-Yu Yu, Gaohong Liu, Juncai Liu, Lingjun Liu, Hai-Bin Lin, Zhiqi Lin, Bole Ma, Chi Zhang, Mofan Zhang, Wang Zhang, Hang Zhu, Ru Zhang, Xin Liu, Mingxuan Wang, Yong-Xu Wu, Lin Yan

arXiv.org

2025

Truncated Proximal Policy Optimization

Tian-Tian Fan, Lingjun Liu, Yu Yue, Jia-Ze Chen, Cheng-Yi Wang, Qi-Ying Yu, Chi Zhang, Zhiqi Lin, Ruofei Zhu, Yufeng Yuan, Xiaochen Zuo, Bole Ma, Mofan Zhang, Gaohong Liu, Ru Zhang, Hao Zhou, Cong Xie, Rui Zhu, Zhi Zhang, Xin Liu, Mingxuan Wang, Lin Yan, Yong-Xu Wu

arXiv.org

2024

HybridFlow: A Flexible and Efficient RLHF Framework

Guang-Ming Sheng, Chi Zhang, Zilingfeng Ye, Xi-Bin Wu, Wang Zhang, Ru Zhang, Yanghua Peng, Haibin Lin, Chuan Wu

European Conference on Computer Systems

2023

APAC: Authorized Probability-controlled Actor-Critic For Offline Reinforcement Learning

Jing Zhang, Chi Zhang, Wenjia Wang, Bing-Yi Jing

arXiv.org

A Framework for Training Large Language Models for Code Generation via Proximal Policy Optimization

Chi Zhang, Guang-Ming Sheng, Siyao Liu, Jiahao Li, Zherui Liu, Xin Liu, Xiao-Ying Jia, Haibin Lin, Chuan Wu

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