He is currently a Ph.D. student at Gaoling School of Artificial Intelligence, Renmin University of China. His supervisor is Prof. Jun Xu. His major research interests are Legal AI, Recommender Systems, Search, Safety LLMs+IR, etc.

Education

• 08.2022-present Ph.D. candidate, Gaoling School of Artificial Intelligence, Renmin University of China.
• 08.2018-06.2022 Bachelor of Computer Science and Technology, Beijing Jiaotong University.

Publications

• W Yu, Z Sun, J Xu, Z Dong, X Chen, H Xu, JR Wen. Explainable legal case matching via inverse optimal transport-based rationale extraction. (SIGIR 2022).
• G Song, J Yang, L He, Z Wang, G Li, C Duan, Y Liu, Z Sun. AddrMiner: A Comprehensive Global Active IPv6 Address Discovery System. (USENIX ATC 22)
• Haomin Wen, Youfang Lin, Fan Wu, Huaiyu Wan, Zhongxiang Sun, Tianyue Cai, Hongyu Liu, Shengnan Guo, Jianbing Zheng, Chao Song, Lixia Wu. Enough Waiting for the Couriers — Learning to Estimate Package Pick-up Arrival Time from Couriers’ Spatial-Temporal Behaviors.(TIST 2022)
• Zihua Si, Zhongxiang Sun, Xiao Zhang, Jun Xu, Yang Song, Xiaoxue Zang, Ji-Rong Wen. Enhancing Recommendation with Search Data in a Causal Learning Manner. (TOIS 2023)
• Z Sun, J Xu, X Zhang, Z Dong, JR Wen. Law Article-Enhanced Legal Case Matching: a Causal Learning Approach. (SIGIR 2023)
• Zihua Si, Zhongxiang Sun, Xiao Zhang, Jun Xu, Xiaoxue Zang, Yang Song, Kun Gai, Ji-Rong Wen. When Search Meets Recommendation: Learning Disentangled Search Representation for Recommendation. (SIGIR 2023)
• Sunhao Dai, Ninglu Shao, Haiyuan Zhao, Weijie Yu, Zihua Si, Chen Xu, Zhongxiang Sun, Xiao Zhang, Jun Xu. Uncovering ChatGPT’s Capabilities in Recommender Systems (RecSys 2023)
• Zhongxiang Sun, Zihua Si, Xiaoxue Zang, Dewei Leng, Yanan Niu, Yang Song, Xiao Zhang, Jun Xu. KuaiSAR: A Unified Search And Recommendation Dataset (CIKM 2023)
• Zhongxiang Sun, Weijie Yu, Zihua Si, Jun Xu, Zhenhua Dong, Xu Chen, Hongteng Xu, Ji-Rong Wen. Explainable Legal Case Matching via Graph Optimal Transport (TKDE 2023) paper
• Zhongxiang Sun, Kepu Zhang, Weijie Yu, Haoyu Wang, Jun Xu. Logic Rules as Explanations for Legal Case Retrieval (COLING 2024)
• Zhongxiang Sun, Zihua Si, Xiao Zhang, Xiaoxue Zang, Yang Song, Hongteng Xu and Jun Xu. To Search or to Recommend: Predicting Open-App Motivation with Neural Hawkes Process (SIGIR 2024) paper

Preprint

• Zhongxiang Sun, Zihua Si, Xiaoxue Zang, Kai Zheng, Yang Song, Xiao Zhang and Jun Xu. Large Language Models Enhanced Collaborative Filtering arxiv

Teaching

1. Teaching Assistant, Introduction to Big Data Analytics in RUC, Fall 2022, 2023
2. Teaching Assistant, Python in RUC, Spring 2023

Work Experience

• Kuaishou: Research Intern
  • February. 2022 ~ Now
  • Model and Application Group
  • Research Directions: Recommender Systems with Search Data
  • Advisor: Xiaoxue Zang
• CAIL 2022: Committee Member .
• TASLP(CCF B) reviewer.
• CIKM 2023(CCF B): PC Member.
• ACM TheWebConf 2024 Conference(CCF A): reviewer.
• SIGIR 2024(CCF A): reviewer.
• CIKM 2024(CCF B): reviewer.

Talk

Renmin University of China’s First ‘Frontiers of Innovation: International Academic Symposium for Doctoral Students’: Accurate and Explainable Legal Case Matching PPT