Peiyang Liu

PhD student, Peking University

Joined

May 2021

Names

Peiyang Liu (Preferred)

Emails

****@qq.com (Confirmed)

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

Personal Links

Career & Education History

PhD student

Peking University (pku.edu.cn)

2025 – 2029

Researcher

Tencent (tencent.com)

2022 – 2025

MS student

Peking University (pku.edu.cn)

2022 – 2025

Advisors, Relations & Conflicts

PhD Advisor

Wei Ye

2025 – 2029

MS Advisor

Wei Ye

2022 – 2025

Expertise

Retrieval Augmented Generation

2025 – Present

LLM Agent

2025 – Present

Information Retrieval

2020 – Present

Publications

Who Stole Your Data? A Method for Detecting Unauthorized RAG Theft
Peiyang Liu, Ziqiang Cui, Di Liang, Wei Ye
- CoRR 2025
- Readers: Everyone
CORE: Lossless Compression for Retrieval-Augmented LLMs via Reinforcement Learning
Ziqiang Cui, Yunpeng Weng, Xing Tang, Peiyang Liu, Shiwei Li, Bowei He, Jiamin Chen, Yansen Zhang, Xiuqiang He, Chen Ma
- Submitted to ICLR 2026
- Readers: Everyone
Structural Reward Model: Enhancing Interpretability, Efficiency, and Scalability in Reward Modeling
Xiaoyu Liu, Di Liang, Hongyu Shan, Peiyang Liu, Yonghao Liu, Muling Wu, Yuntao Li, Xianjie Wu, LI Miao, Jiangrong Shen, Minlong Peng
- CoRR 2025
- Readers: Everyone
CORE: Lossless Compression for Retrieval-Augmented LLMs via Reinforcement Learning
Ziqiang Cui, Yunpeng Weng, Xing Tang, Peiyang Liu, Shiwei Li, Bowei He, Jiamin Chen, Xiuqiang He, Chen Ma
- CoRR 2025
- Readers: Everyone
Semantic Retrieval Augmented Contrastive Learning for Sequential Recommendation
Ziqiang Cui, Yunpeng Weng, Xing Tang, Xiaokun Zhang, Shiwei Li, Peiyang Liu, Bowei He, Dugang Liu, Weihong Luo, xiuqiang He, Chen Ma
- NeurIPS 2025 poster
- Readers: Everyone
Semantic Retrieval Augmented Contrastive Learning for Sequential Recommendation
Ziqiang Cui, Yunpeng Weng, Xing Tang, Xiaokun Zhang, Dugang Liu, Shiwei Li, Peiyang Liu, Bowei He, Weihong Luo, Xiuqiang He, Chen Ma
- CoRR 2025
- Readers: Everyone
Queries Are Not Alone: Clustering Text Embeddings for Video Search
Peiyang Liu, Xi Wang, Ziqiang Cui, Wei Ye
- SIGIR 2025
- Readers: Everyone
Unsupervised corrupt data detection for text training
Peiyang Liu
- Expert Syst. Appl. 2024
- Readers: Everyone
Retrieval-Based Unsupervised Noisy Label Detection on Text Data
Peiyang Liu, Jinyu Yang, Lin Wang, Sen Wang, Yunlai Hao, Huihui Bai
- CIKM 2023
- Readers: Everyone
Label Smoothing for Text Mining
Peiyang Liu, Xiangyu Xi, Wei Ye, Shikun Zhang
- Published: 01 Jan 2022, Last Modified: 22 Jan 2024
- COLING 2022
- Readers: Everyone

View all 14 publications

Co-Authors

View all 34 co-authors