About me

• I am currently a 2nd year PhD student at the Gaoling School of Artificial Intelligence, Renmin University of China, mentored by Prof. Zhicheng Dou. I earned my bachelor’s degree (2019-2023) at Nankai University.
• Research interests: Retrieval-augmented Generation, LLM Reasoning, Search Agent, Deep Research

🔥 News

• 2025.05: Four papers have been accepted by ACL 2025! Looking forward to seeing you in Vienna!
• 2025.05: We release 🌐 WebThinker, a deep research agent capable of autonomous web search, navigation, and research report generation during reasoning! See more details.
• 2025.02: Our survey on Generative Information Retrieval has been accepted by TOIS! See more details.
• 2025.01: We release 🔍 Search-o1, enhancing o1-like large reasoning models with agentic search! See more details.
• 2024.03: Our work on unified language models for knowledge-intensive tasks has been accepted by SIGIR 2024! See more details.
• 2023.12: Our unified generative framework for retrieval and QA has been accepted by AAAI 2024! See more details.

📝 Publications

As the First Author

2025

• arXiv WebThinker: Empowering Large Reasoning Models with Deep Research Capability, Xiaoxi Li, Jiajie Jin, Guanting Dong, Hongjin Qian, Yutao Zhu, Yongkang Wu, Ji-Rong Wen, and Zhicheng Dou.
• arXiv Search-o1: Agentic Search-Enhanced Large Reasoning Models, Xiaoxi Li, Guanting Dong, Jiajie Jin, Yuyao Zhang, Yujia Zhou, Yutao Zhu, Peitian Zhang, and Zhicheng Dou.
• ACL 2025 RetroLLM: Empowering Large Language Models to Retrieve Fine-grained Evidence within Generation, Xiaoxi Li, Jiajie Jin, Yujia Zhou, Yongkang Wu, Zhonghua Li, Qi Ye, Zhicheng Dou.
• TOIS 2025 From Matching to Generation: A Survey on Generative Information Retrieval, Xiaoxi Li, Jiajie Jin, Yujia Zhou, Yuyao Zhang, Peitian Zhang, Yutao Zhu, and Zhicheng Dou.

2024

• SIGIR 2024 CorpusLM: Towards a Unified Language Model on Corpus for Knowledge-intensive Tasks, Xiaoxi Li, Zhicheng Dou, Yujia Zhou, Fangchao Liu.
• AAAI 2024 UniGen: A Unified Generative Framework for Retrieval and Question Answering with Large Language Models, Xiaoxi Li, Yujia Zhou, Zhicheng Dou.

As a Co-author

2025

• arXiv Tool-Star: Empowering LLM-Brained Multi-Tool Reasoner via Reinforcement Learning, Guanting Dong, Yifei Chen, Xiaoxi Li, Jiajie Jin, Hongjin Qian, Yutao Zhu, Hangyu Mao, Guorui Zhou, Zhicheng Dou, and Ji-Rong Wen.
• ACL 2025 Hierarchical Document Refinement for Long-context Retrieval-augmented Generation, Jiajie Jin, Xiaoxi Li, Guanting Dong, Yuyao Zhang, Yutao Zhu, Yongkang Wu, Zhonghua Li, Qi Ye, and Zhicheng Dou.
• ACL 2025 RAG-Critic: Leveraging Automated Critic-Guided Agentic Workflow for Retrieval Augmented Generation, Guanting Dong, Jiajie Jin, Xiaoxi Li, Yutao Zhu, Zhicheng Dou, Ji-Rong Wen.
• ACL 2025 Findings Neuro-Symbolic Query Compiler, Yuyao Zhang, Zhicheng Dou, Xiaoxi Li, Jiajie Jin, Yongkang Wu, Zhonghua Li, Qi Ye, and Ji-Rong Wen.
• AAAI 2025 Descriptive and Discriminative Document Identifiers for Generative Retrieval, Jiehan Cheng, Zhicheng Dou, Yutao Zhu, and Xiaoxi Li.

2024

• arXiv A Survey of Conversational Search, Fengran Mo, Kelong Mao, Ziliang Zhao, Hongjin Qian, Haonan Chen, Yiruo Cheng, Xiaoxi Li, Yutao Zhu, Zhicheng Dou, and Jian-Yun Nie.
• arXiv Trustworthiness in retrieval-augmented generation systems: A survey, Yujia Zhou, Yan Liu, Xiaoxi Li, Jiajie Jin, Hongjin Qian, Zheng Liu, Chaozhuo Li, Zhicheng Dou, Tsung-Yi Ho, Philip S Yu.

📖 Educations

• 2023.09 - Present, PhD, Gaoling School of Artificial Intelligence, Renmin University of China, Beijing.
• 2019.09 - 2023.06, Bachelor, College of Artificial Intelligence, Nankai University, Tianjin.