Hi! I’m a third year Ph.D. Candidate from Institute of Information Engineering,Chinese Academy of Sciences, advised by Prof. Tingwen Liu and Prof. Jiawei Sheng. I’ve also interned at Kuaishou Technology, advised by Dr. Jiangxia Cao.

My research interest includes Recommendation System, Information Retrieval, and Multimodal Understanding and Generation. I am expected to complete my Ph.D. in June 2028, and will be actively seeking opportunities in both industry and academia. If you are interested, please feel free to get in touch.

🔥 News

• 2026.10:  🎉🎉 I have been awarded the China Association for Science and Technology Youth Talent Support Program for Doctoral Students!
• 2026.08:  🎉🎉 One paper has been accepted by EMNLP 2026!
• 2026.08:  🎉🎉 Two papers have been accepted by CIKM 2026!
• 2026.05:  🎉🎉 One paper has been accepted by KDD 2026!
• 2025.11:  🎉🎉 One paper has been accepted by WSDM 2026!
• 2025.11:  🎉🎉 Two papers have been accepted by KDD 2026!

📝 Publications

• From Agnostic to Specific: Latent Preference Diffusion for Multi-Behavior Sequential Recommendation.
  Ruochen Yang, Xiaodong Li, Jiawei Sheng, Jiangxia Cao, Xinkui Lin, Shen Wang, Shuang Yang, Zhaojie Liu, Tingwen Liu.
  The 32nd ACM SIGKDD Conference on Knowledge Discovery and Data Mining, 2026 (KDD 2026).

• FARM: Frequency-Aware Model for Cross-Domain Live-Streaming Recommendation
  Xiaodong Li*, Ruochen Yang*, Shuang Wen, Shen Wang, Yueyang Liu, Guoquan Wang, Weisong Hu, Qiang Luo, Jiawei Sheng, Tingwen Liu, Jiangxia Cao, Shuang Yang, Zhaojie Liu.
  The 32nd ACM SIGKDD Conference on Knowledge Discovery and Data Mining, 2026 (KDD 2026).

• OneLive: Dynamically Unified Generative Framework for Live-Streaming Recommendation
  Shen Wang*, Yusheng Huang*, Ruochen Yang*, Shuang Wen*, Pengbo Xu*, Jiangxia Cao, Yueyang Liu, Kuo Cai, Chengcheng Guo, Shiyao Wang, Xinchen Luo, Qiang Luo, Ruiming Tang, Shuang Yang, Zhaojie Liu.
  The 32nd ACM SIGKDD Conference on Knowledge Discovery and Data Mining, 2026 (KDD 2026).

• Foresight Prediction Enhanced Live-Streaming Recommendation
  Jiangxia Cao*, Ruochen Yang*, Xiang Chen, Changxin Lao, Yueyang Liu, Yusheng Huang, Yuanhao Tian, Xiangyu Wu, Shuang Yang, Zhaojie Liu, Guorui Zhou.
  The 19th ACM International Conference on Web Search and Data Mining, 2026 (WSDM 2026).

• SARM: LLM-Augmented Semantic Anchor for End-to-End Live-Streaming Ranking
  Ruochen Yang, Yueyang Liu, Zijie Zhuang, Changxin Lao, Yuhui Zhang, Jiangxia Cao, Jia Xu, Xiang Chen, Haoke Xiao, Xiangyu Wu, Xiaoyou Zhou, Xiao Lv, Shuang Yang, Tingwen Liu, Zhaojie Liu, Han Li, Kun Gai.
  The 35th International ACM Conference on Knowledge and Information Management, 2026 (CIKM 2026)

• Break the Inaccessible Boundary: Distilling Post-Conversion Content for User Retention Modeling
  Tianbao Ma*, Ruochen Yang*, Chengen Li, Yuexin Shi, Jiangxia Cao, Linxun Chen, Zhaojie Liu, Yanan Niu, Han Li, Kun Gai.
  The 35th International ACM Conference on Knowledge and Information Management, 2026 (CIKM 2026)

• Where to Look and What to Use: Retrieve–Localize–Generate for Long-Term Conversational Memory Question Answering
  Yifan Wang, Xinkui Lin, Yongxiu Xu, Shen Gao, Ruochen Yang, Kun Huang, Yubin Wang, Jie Wu, Wei Liu, Jian Luan, Hongbo Xu, Shuo Shang.
  The 2026 Conference on Empirical Methods in Natural Language Processing, 2026 (EMNLP 2026)

• Unifying Generative Recall and Multi-Objective Ranking in a Single Decoder-Only Sequence
  Ruochen Yang, Shuang Wen, Pengbo Xu, Yusheng Huang, Jiangxia Cao, Shuang Yang, Zhaojie Liu, Jiawei Sheng, Tingwen Liu.
  Arxiv.

• Reward Guided Decoding for Generative Recommendation
  Ruochen Yang, Yusheng Huang, Youfeng Zheng, Shuang Wen, Liangliang Chen, Pengbo Xu, Xiaoyu Zhang, Shijun Wang, Shuang Yang, Zhaojie Liu, Jiawei Sheng, Tingwen Liu.
  Arxiv.

• Agentx: Towards agent-driven self-iteration of industrial recommender systems
  Technical Report Core Contribution

• Kwai Summary Attention V2 Technical Report
  Technical Report Contribution

🎖 Honors and Awards

• 2026.10 China Association for Science and Technology Youth Talent Support Program for Doctoral Students of China
• 2026.08 Qogir Award of Kuaishou Technology
• 2026.04 Outstanding Intern of Kuaishou Technology
• 2025.05 Merit Student of University of Chinese Academy of Sciences
• 2023.06 Outstanding Graduate of Shandong University
• 2019.09~2022.09 Academic Merit Scholarship of Shandong University

📖 Educations

• 2023.09 - Present, Ph.D. Candidate, Cyberspace Security, Chinese Academy of Sciences
• 2019.09 - 2023.06, Undergraduate, Data Science and Big Data Technology, Shandong University

⭐ Services

• Program Committee / Reviewer: KDD 2027, WWW 2027, WSDM 2027, AAAI 2027/26, SIGIR 2026, CIKM 2026, ECML/PKDD 2026

💻 Internships

• 2026.08 - Present, Kuaishou Technology, OneRec Team
• 2024.08 - 2026.08, Kuaishou Technology, Researcher on Live-Streaming Recommendation System