Jiongnan Liu (刘炯楠)
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About
I am currently a member of the Qwen Team at Alibaba. Previously, I received my Ph.D. from the Gaoling School of Artificial Intelligence, Renmin University of China, where I was fortunate to be advised by Prof. Zhicheng Dou. I received my B.Eng. in Computer Science from the School of Information, Renmin University of China, in 2021.
My research interests include personalization (personalized search and personalized content generation), memory, and AI agents.
Education
- Gaoling School of Artificial Intelligence, Renmin University of China, Ph.D., 2021-2026 Research Topic: Personalized Information Seeking. Advisor: Prof. Zhicheng Dou
- Carnegie Mellon University, Visiting student. Oct. 2024 - Apr. 2025 Research Topic: Personalized Content Generation. Visiting Research Advisor: Prof. Chenyan Xiong
- School of Information, Renmin University of China, B.E., 2017-2021
Experiences
- Baidu, Research Intern. Sep. 2023 - Sep. 2024, Beijing, China Direction: Personalized web search.
- JD.com, Research Intern. Mar. 2022 - Apr. 2023, Beijing, China Direction: Personalized product search.
Publications & Preprints
Memory Matters More: Event-Centric Memory as a Logic Map for Agent Searching and Reasoning
Yuyang Hu, Jiongnan Liu, Jiejun Tan, Yutao Zhu, Zhicheng Dou
ACL 2026 Findings. [Paper]
Memory in the Age of AI Agents
Yuyang Hu, Shichun Liu, Yanwei Yue, Guibin Zhang, Boyang Liu, Fangyi Zhu, Jiahang Lin, Honglin Guo, Shihan Dou, Zhiheng Xi, Senjie Jin, Jiejun Tan, Yanbin Yin, Jiongnan Liu, Zeyu Zhang, Zhongxiang Sun, Yutao Zhu, Hao Sun, Boci Peng, Zhenrong Cheng, Xuanbo Fan, Jiaxin Guo, Xinlei Yu, Zhenhong Zhou, Zewen Hu, Jiahao Huo, Junhao Wang, Yuwei Niu, Yu Wang, Zhenfei Yin, Xiaobin Hu, Yue Liao, Qiankun Li, Kun Wang, Wangchunshu Zhou, Yixin Liu, Dawei Cheng, Qi Zhang, Tao Gui, Shirui Pan, Yan Zhang, Philip Torr, Zhicheng Dou, Ji-Rong Wen, Xuanjing Huang, Yu-Gang Jiang, Shuicheng Yan
Arxiv 2025. [Paper]
ORBIT - Open Recommendation Benchmark for Reproducible Research with Hidden Tests
Jingyuan He, Jiongnan Liu, Vishan Vishesh Oberoi, Bolin Wu, Mahima Jagadeesh Patel, Kangrui Mao, Chuning Shi, I-Ta Lee, Arnold Overwijk, Chenyan Xiong
NeurIPS 2025 Datasets & Benchmarks track. [Paper]
LLMs + Persona-Plug = Personalized LLMs
Jiongnan Liu, Yutao Zhu, Shuting Wang, Xiaochi Wei, Erxue Min, Yu Lu, Shuaiqiang Wang, Dawei Yin, Zhicheng Dou
ACL 2025 main. [Paper]
Generate, Not Recommend: Personalized Multimodal Content Generation
Jiongnan Liu, Zhicheng Dou, Ning Hu, Chenyan Xiong
Arxiv 2025. [Paper]
Large language models for information retrieval: A survey
Yutao Zhu, Huaying Yuan, Shuting Wang, Jiongnan Liu, Wenhan Liu, Chenlong Deng, Haonan Chen, Zhicheng Dou, Ji-Rong Wen
TOIS 2025. [Paper]
Enhancing Sequential Personalized Product Search with External Out-of-sequence Knowledge
Jiongnan Liu, Zhicheng Dou, Jian-Yun Nie, Zhenlin Chen, Guoyu Tang, Sulong Xu, Ji-Rong Wen
TOIS 2025. [Paper]
DomainRAG: A Chinese Benchmark for Evaluating Domain-specific Retrieval-Augmented Generation
Shuting Wang, Jiongnan Liu, Shiren Song, Jiehan Cheng, Yuqi Fu, Peidong Guo, Kun Fang, Yutao Zhu, Zhicheng Dou
Arxiv 2024. [Paper]
Generalizing conversational dense retrieval via llm-cognition data augmentation
Haonan Chen, Zhicheng Dou, Kelong Mao, Jiongnan Liu, Ziliang Zhao
ACL 2024 main. [Paper]
Personalized and Diversified: Ranking Search Results in an Integrated Way
Shuting Wang, Zhicheng Dou, Jiongnan Liu, Qiannan Zhu, Ji-Rong Wen
TOIS 2024. [Paper]
Integrated Personalized and Diversified Search Based on Search Logs
Jiongnan Liu, Zhicheng Dou, Jian-Yun Nie, Ji-Rong Wen
TKDE 2024. [Paper]
Contrastive Learning for User Sequence Representation in Personalized Product Search
Shitong Dai, Jiongnan Liu, Zhicheng Dou, Haonan Wang, Lin Liu, Bo Long, Ji-Rong Wen
KDD 2023. [Paper]
RETA-LLM: A retrieval-augmented large language model toolkit
Jiongnan Liu, Jiajie Jin, Zihan Wang, Jiehan Cheng, Zhicheng Dou, Ji-Rong Wen
Arxiv 2023. [Paper]
JDsearch: A Personalized Product Search Dataset with Real Queries and Full Interactions
Jiongnan Liu, Zhicheng Dou, Guoyu Tang, Sulong Xu
SIGIR 2023. [Paper]
A category-aware multi-interest model for personalized product search
Jiongnan Liu, Zhicheng Dou, Qiannan Zhu, Ji-Rong Wen
WWW 2022. [Paper]
DVGAN: A minimax game for search result diversification combining explicit and implicit features
Jiongnan Liu, Zhicheng Dou, Xiaojie Wang, Shuqi Lu, Ji-Rong Wen
SIGIR 2020. [Paper]
Academic Services
Review: SIGIR, CIKM, ACL, TKDE, TOIS, KAIS, ...
Scholarship
- Wu Yuzhang Scholarship (The highest honor in Renmin University of China), 2020
- SenseTime Scholarship, 2020
- National Scholarship (Undergraduate), 2020
- Outstanding Graduate of Beijing City, 2021
- First-class Ph.D. Scholarship of Renmin University of China, 2021,2022,2023
- Outstanding Innovative Talents Cultivation Funds of Renmin University of China, 2022,2023
- National Scholarship (Doctoral), 2025
Awards
- ACM-ICPC Asia Regional Contest Silver Medal, 2017,2018,2019
- ICPC Asia-East Continent Final Silver Medal, 2018
- Bronze Medal, Chinese National Olympiad in Informatics, 2016