Jiongnan Liu (刘炯楠) CS/IR/NLP Ph.D. Candidate Renmin University of China Email: liujn@ruc.edu.cn [Google Scholar] [Semantic Scholar] [DBLP] [GitHub]

About

I am a fourth-year Ph.D. student at the Gaoling School of Artificial Intelligence, Renmin University of China. I am fortunate to be advised by Prof. Zhicheng Dou. Previously, I received B.Eng degrees in Computer Science from School of Information, Renmin University in 2021.

My research focuses on information retrieval and natural language processing, with an emphasis on personalization. Specifically, I work on personalized search in both web and e-commerce domains, as well as personalized content generation. Recently, I have also developed an interest in retrieval-augmented generation.

Research Experiences

• Carnegie Mellon University, Visiting student. Oct. 2024 - Present, Pittsburgh, USA
Direction: Personalized content generation.
• 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

• LLMs + Persona-Plug = Personalized LLMs.
  Jiongnan Liu, Yutao Zhu, Shuting Wang, Xiaochi Wei, Erxue Min, Yu Lu, Shuaiqiang Wang, Dawei Yin, Zhicheng Dou
  Arxiv 2024. [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 augmentationt
  Haonan Chen, Zhicheng Dou, Kelong Mao, Jiongnan Liu, Ziliang Zhao
  ACL 2024. [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]

• 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
  Arxiv 2023. [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: TKDE, KAIS, ACL, CIKM, SIGIR-AP, ...

Scholarship

• Wu Yuzhang Scholarship (The highest honor in Renmin University of China), 2020
• SenseTime Scholarship, 2020
• Outstanding Graduate of Beijing City, 2021
• China National Scholarship, 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

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