Xu Chen

2026

doi dblp

Explainable Recommendation with Simulated Human Feedback.

Jiakai Tang|Jingsen Zhang|Zihang Tian|Xueyang Feng|Lei Wang|Xu Chen

ACM Transactions on Information Systems (TOIS) 2026 Volume 44 Issue 1

doi dblp

Optimizing Multi-Turn Interactive Recommendation Agents via Generative Intrinsic Motivation.

Xueyang Feng|Jiakai Tang|Xu Chen|Quanyu Dai|Zhenhua Dong

Proceedings of the ACM Web Conference 2026, WWW 2026, Dubai, United Arab Emirates, originally scheduled for April 13-17, 2026, rescheduled for June 29 - July 3, 2026.

2025

doi dblp

User Behavior Simulation with Large Language Model-based Agents.

Lei Wang|Jingsen Zhang|Hao Yang|Zhiyuan Chen|Jiakai Tang|Zeyu Zhang|Xu Chen|Yankai Lin|Hao Sun|Ruihua Song|Xin Zhao|Jun Xu|Zhicheng Dou|Jun Wang|Ji-Rong Wen

ACM Transactions on Information Systems (TOIS) 2025 Volume 43 Issue 2

doi dblp

A Survey on the Memory Mechanism of Large Language Model-based Agents.

Zeyu Zhang|Quanyu Dai|Xiaohe Bo|Chen Ma|Rui Li|Xu Chen|Jieming Zhu|Zhenhua Dong|Ji-Rong Wen

ACM Transactions on Information Systems (TOIS) 2025 Volume 43 Issue 6

doi dblp

The 1st Workshop on LLM Agents for Social Simulation.

Yige Yuan|Junkai Zhou|Bingbing Xu|Liang Pang|Du Su|An Zhang|Teng Xiao|Fengli Xu|Zhaochun Ren|Xu Chen

Proceedings of the 34th ACM International Conference on Information and Knowledge Management, CIKM 2025, Seoul, Republic of Korea, November 10-14, 2025

doi dblp

RecUserSim: A Realistic and Diverse User Simulator for Evaluating Conversational Recommender Systems.

Luyu Chen|Quanyu Dai|Zeyu Zhang|Xueyang Feng|Mingyu Zhang|Pengcheng Tang|Xu Chen|Yue Zhu|Zhenhua Dong

Companion Proceedings of the ACM on Web Conference 2025, WWW 2025, Sydney, NSW, Australia, 28 April 2025 - 2 May 2025

doi dblp

MemEngine: A Unified and Modular Library for Developing Advanced Memory of LLM-based Agents.

Zeyu Zhang|Quanyu Dai|Xu Chen|Rui Li|Zhongyang Li|Zhenhua Dong

Companion Proceedings of the ACM on Web Conference 2025, WWW 2025, Sydney, NSW, Australia, 28 April 2025 - 2 May 2025

2024

doi dblp

Privacy-preserving Cross-domain Recommendation with Federated Graph Learning.

Changxin Tian|Yuexiang Xie|Xu Chen|Yaliang Li|Xin Zhao

ACM Transactions on Information Systems (TOIS) 2024 Volume 42 Issue 5

doi dblp

Distributional Fairness-aware Recommendation.

Hao Yang|Xian Wu|Zhaopeng Qiu|Yefeng Zheng|Xu Chen

ACM Transactions on Information Systems (TOIS) 2024 Volume 42 Issue 5

doi dblp

Toward Bias-Agnostic Recommender Systems: A Universal Generative Framework.

Zhidan Wang|Lixin Zou|Chenliang Li|Shuaiqiang Wang|Xu Chen|Dawei Yin|Weidong Liu

ACM Transactions on Information Systems (TOIS) 2024 Volume 42 Issue 6

doi dblp

Soft Contrastive Sequential Recommendation.

Yabin Zhang|Zhenlei Wang|Wenhui Yu|Lantao Hu|Peng Jiang|Kun Gai|Xu Chen

ACM Transactions on Information Systems (TOIS) 2024 Volume 42 Issue 6

doi dblp

Large Language Model Powered Agents for Information Retrieval.

An Zhang|Yang Deng|Yankai Lin|Xu Chen|Ji-Rong Wen|Tat-Seng Chua

Proceedings of the 47th International ACM SIGIR Conference on Research and Development in Information Retrieval, SIGIR 2024, Washington DC, USA, July 14-18, 2024

doi dblp

Causally Debiased Time-aware Recommendation.

Lei Wang|Chen Ma|Xian Wu|Zhaopeng Qiu|Yefeng Zheng|Xu Chen

Proceedings of the ACM on Web Conference 2024, WWW 2024, Singapore, May 13-17, 2024

doi dblp

Understanding Human Preferences: Towards More Personalized Video to Text Generation.

Yihan Wu|Ruihua Song|Xu Chen|Hao Jiang|Zhao Cao|Jin Yu

Proceedings of the ACM on Web Conference 2024, WWW 2024, Singapore, May 13-17, 2024

doi dblp

Large Language Model Powered Agents in the Web.

Yang Deng|An Zhang|Yankai Lin|Xu Chen|Ji-Rong Wen|Tat-Seng Chua

Companion Proceedings of the ACM on Web Conference 2024, WWW 2024, Singapore, Singapore, May 13-17, 2024

doi dblp

Simulating Human Society with Large Language Model Agents: City, Social Media, and Economic System.

Chen Gao|Fengli Xu|Xu Chen|Xiang Wang|Xiangnan He|Yong Li

Companion Proceedings of the ACM on Web Conference 2024, WWW 2024, Singapore, Singapore, May 13-17, 2024

2023

doi dblp

Debiased Recommendation with User Feature Balancing.

Mengyue Yang|Guohao Cai|Furui Liu|Jiarui Jin|Zhenhua Dong|Xiuqiang He|Jianye Hao|Weiqi Shao|Jun Wang|Xu Chen

ACM Transactions on Information Systems (TOIS) 2023 Volume 41 Issue 4

doi dblp

Causal Collaborative Filtering.

Shuyuan Xu|Yingqiang Ge|Yunqi Li|Zuohui Fu|Xu Chen|Yongfeng Zhang

Proceedings of the 2023 ACM SIGIR International Conference on Theory of Information Retrieval, ICTIR 2023, Taipei, Taiwan, 23 July 2023

doi dblp

Towards a More User-Friendly and Easy-to-Use Benchmark Library for Recommender Systems.

Lanling Xu|Zhen Tian|Gaowei Zhang|Junjie Zhang|Lei Wang|Bowen Zheng|Yifan Li|Jiakai Tang|Zeyu Zhang|Yupeng Hou|Xingyu Pan|Wayne Xin Zhao|Xu Chen|Ji-Rong Wen

Proceedings of the 46th International ACM SIGIR Conference on Research and Development in Information Retrieval, SIGIR 2023, Taipei, Taiwan, July 23-27, 2023

doi dblp

Robust Causal Inference for Recommender System to Overcome Noisy Confounders.

Zhiheng Zhang|Quanyu Dai|Xu Chen|Zhenhua Dong|Ruiming Tang

Proceedings of the 46th International ACM SIGIR Conference on Research and Development in Information Retrieval, SIGIR 2023, Taipei, Taiwan, July 23-27, 2023

doi dblp

Distributionally Robust Sequential Recommnedation.

Rui Zhou|Xian Wu|Zhaopeng Qiu|Yefeng Zheng|Xu Chen

Proceedings of the 46th International ACM SIGIR Conference on Research and Development in Information Retrieval, SIGIR 2023, Taipei, Taiwan, July 23-27, 2023

doi dblp

Robust Recommendation with Adversarial Gaussian Data Augmentation.

Zhenlei Wang|Xu Chen

Proceedings of the ACM Web Conference 2023, WWW 2023, Austin, TX, USA, 30 April 2023 - 4 May 2023

doi dblp

Recommendation with Causality enhanced Natural Language Explanations.

Jingsen Zhang|Xu Chen|Jiakai Tang|Weiqi Shao|Quanyu Dai|Zhenhua Dong|Rui Zhang

Proceedings of the ACM Web Conference 2023, WWW 2023, Austin, TX, USA, 30 April 2023 - 4 May 2023

2022

doi dblp

Dually Enhanced Propensity Score Estimation in Sequential Recommendation.

Chen Xu|Jun Xu|Xu Chen|Zhenhua Dong|Ji-Rong Wen

Proceedings of the 31st ACM International Conference on Information & Knowledge Management, Atlanta, GA, USA, October 17-21, 2022

doi dblp

Explainable Legal Case Matching via Inverse Optimal Transport-based Rationale Extraction.

Weijie Yu|Zhongxiang Sun|Jun Xu|Zhenhua Dong|Xu Chen|Hongteng Xu|Ji-Rong Wen

SIGIR '22: The 45th International ACM SIGIR Conference on Research and Development in Information Retrieval, Madrid, Spain, July 11 - 15, 2022

doi dblp

Unbiased Sequential Recommendation with Latent Confounders.

Zhenlei Wang|Shiqi Shen|Zhipeng Wang|Bo Chen|Xu Chen|Ji-Rong Wen

WWW '22: The ACM Web Conference 2022, Virtual Event, Lyon, France, April 25 - 29, 2022

doi dblp

Generative Session-based Recommendation.

Zhidan Wang|Wenwen Ye|Xu Chen|Wenqiang Zhang|Zhenlei Wang|Lixin Zou|Weidong Liu

WWW '22: The ACM Web Conference 2022, Virtual Event, Lyon, France, April 25 - 29, 2022

2021

doi dblp

Counterfactual Explainable Recommendation.

Juntao Tan|Shuyuan Xu|Yingqiang Ge|Yunqi Li|Xu Chen|Yongfeng Zhang

CIKM '21: The 30th ACM International Conference on Information and Knowledge Management, Virtual Event, Queensland, Australia, November 1 - 5, 2021

doi dblp

Counterfactual Review-based Recommendation.

Kun Xiong|Wenwen Ye|Xu Chen|Yongfeng Zhang|Wayne Xin Zhao|Binbin Hu|Zhiqiang Zhang|Jun Zhou

CIKM '21: The 30th ACM International Conference on Information and Knowledge Management, Virtual Event, Queensland, Australia, November 1 - 5, 2021

doi dblp

Top-N Recommendation with Counterfactual User Preference Simulation.

Mengyue Yang|Quanyu Dai|Zhenhua Dong|Xu Chen|Xiuqiang He|Jun Wang

CIKM '21: The 30th ACM International Conference on Information and Knowledge Management, Virtual Event, Queensland, Australia, November 1 - 5, 2021

doi dblp

Causally Attentive Collaborative Filtering.

Jingsen Zhang|Xu Chen|Wayne Xin Zhao

CIKM '21: The 30th ACM International Conference on Information and Knowledge Management, Virtual Event, Queensland, Australia, November 1 - 5, 2021

doi dblp

Counterfactual Data-Augmented Sequential Recommendation.

Zhenlei Wang|Jingsen Zhang|Hongteng Xu|Xu Chen|Yongfeng Zhang|Wayne Xin Zhao|Ji-Rong Wen

SIGIR '21: The 44th International ACM SIGIR Conference on Research and Development in Information Retrieval, Virtual Event, Canada, July 11-15, 2021

doi dblp

CSR 2021: The 1st International Workshop on Causality in Search and Recommendation.

Yongfeng Zhang|Xu Chen|Yi Zhang|Xianjie Chen

SIGIR '21: The 44th International ACM SIGIR Conference on Research and Development in Information Retrieval, Virtual Event, Canada, July 11-15, 2021

doi dblp

The 1st International Workshop on Machine Reasoning: International Machine Reasoning Conference (MRC 2021).

Yongfeng Zhang|Min Zhang|Hanxiong Chen|Xu Chen|Xianjie Chen|Chuang Gan|Tong Sun|Xin Luna Dong

WSDM '21, The Fourteenth ACM International Conference on Web Search and Data Mining, Virtual Event, Israel, March 8-12, 2021

doi dblp

A Novel Macro-Micro Fusion Network for User Representation Learning on Mobile Apps.

Shuqing Bian|Wayne Xin Zhao|Kun Zhou|Xu Chen|Jing Cai|Yancheng He|Xingji Luo|Ji-Rong Wen

WWW '21: The Web Conference 2021, Virtual Event / Ljubljana, Slovenia, April 19-23, 2021.

doi dblp

Reinforcement Recommendation with User Multi-aspect Preference.

Xu Chen|Yali Du|Long Xia|Jun Wang

WWW '21: The Web Conference 2021, Virtual Event / Ljubljana, Slovenia, April 19-23, 2021.

2020

doi dblp

Explainable Recommendation: A Survey and New Perspectives.

Yongfeng Zhang|Xu Chen

Foundations and Trends in Information Retrieval 2020 Volume 14 Issue 1

doi dblp

Neural Feature-aware Recommendation with Signed Hypergraph Convolutional Network.

Xu Chen|Kun Xiong|Yongfeng Zhang|Long Xia|Dawei Yin|Jimmy Xiangji Huang

ACM Transactions on Information Systems (TOIS) 2020 Volume 39 Issue 1

doi dblp

Learning to Match Jobs with Resumes from Sparse Interaction Data using Multi-View Co-Teaching Network.

Jaehui Park|Kun Zhou|Shuqing Bian|Yupeng Hou|Sang-goo Lee|Xu Chen|Wayne Xin Zhao|Kun Zhou|Jaehui Park|Sang-goo Lee|Yupeng Hou|Yang Song|Tao Zhang|Ji-Rong Wen

CIKM '20: The 29th ACM International Conference on Information and Knowledge Management, Virtual Event, Ireland, October 19-23, 2020

doi dblp

CAFE: Coarse-to-Fine Neural Symbolic Reasoning for Explainable Recommendation.

Yikun Xian|Zuohui Fu|Handong Zhao|Yingqiang Ge|Xu Chen|Qiaoying Huang|Shijie Geng|Zhou Qin|Gerard de Melo|S. Muthukrishnan|Yongfeng Zhang

CIKM '20: The 29th ACM International Conference on Information and Knowledge Management, Virtual Event, Ireland, October 19-23, 2020

doi dblp

JIT2R: A Joint Framework for Item Tagging and Tag-based Recommendation.

Xu Chen|Changying Du|Xiuqiang He|Jun Wang

Proceedings of the 43rd International ACM SIGIR conference on research and development in Information Retrieval, SIGIR 2020, Virtual Event, China, July 25-30, 2020

doi dblp

Time Matters: Sequential Recommendation with Complex Temporal Information.

Wenwen Ye|Shuaiqiang Wang|Xu Chen|Xuepeng Wang|Zheng Qin|Dawei Yin

Proceedings of the 43rd International ACM SIGIR conference on research and development in Information Retrieval, SIGIR 2020, Virtual Event, China, July 25-30, 2020

doi dblp

EARS 2020: The 3rd International Workshop on ExplainAble Recommendation and Search.

Yongfeng Zhang|Xu Chen|Yi Zhang|Min Zhang|Chirag Shah

Proceedings of the 43rd International ACM SIGIR conference on research and development in Information Retrieval, SIGIR 2020, Virtual Event, China, July 25-30, 2020

2019

doi dblp

Adversarial Distillation for Efficient Recommendation with External Knowledge.

Xu Chen|Yongfeng Zhang|Hongteng Xu|Zheng Qin|Hongyuan Zha

ACM Transactions on Information Systems (TOIS) 2019 Volume 37 Issue 1

doi dblp

Personalized Fashion Recommendation with Visual Explanations based on Multimodal Attention Network: Towards Visually Explainable Recommendation.

Xu Chen|Hanxiong Chen|Hongteng Xu|Yongfeng Zhang|Yixin Cao|Zheng Qin|Hongyuan Zha

Proceedings of the 42nd International ACM SIGIR Conference on Research and Development in Information Retrieval, SIGIR 2019, Paris, France, July 21-25, 2019.

2018

doi dblp

Towards Conversational Search and Recommendation: System Ask, User Respond.

Yongfeng Zhang|Xu Chen|Qingyao Ai|Liu Yang|W. Bruce Croft

Proceedings of the 27th ACM International Conference on Information and Knowledge Management, CIKM 2018, Torino, Italy, October 22-26, 2018

doi dblp

Sequential Recommendation with User Memory Networks.

Xu Chen|Hongteng Xu|Yongfeng Zhang|Jiaxi Tang|Yixin Cao|Zheng Qin|Hongyuan Zha

Proceedings of the Eleventh ACM International Conference on Web Search and Data Mining, WSDM 2018, Marina Del Rey, CA, USA, February 5-9, 2018

doi dblp

IFUP: Workshop on Multi-dimensional Information Fusion for User Modeling and Personalization.

Feida Zhu|Yongfeng Zhang|Neil Yorke-Smith|Guibing Guo|Xu Chen

Proceedings of the Eleventh ACM International Conference on Web Search and Data Mining, WSDM 2018, Marina Del Rey, CA, USA, February 5-9, 2018

doi dblp

Aesthetic-based Clothing Recommendation.

Wenhui Yu|Huidi Zhang|Xiangnan He|Xu Chen|Li Xiong|Zheng Qin

Proceedings of the 2018 World Wide Web Conference on World Wide Web, WWW 2018, Lyon, France, April 23-27, 2018

2017

doi dblp

Probabilistic Local Matrix Factorization Based on User Reviews.

Xu Chen|Yongfeng Zhang|Wayne Xin Zhao|Wenwen Ye|Zheng Qin

Information Retrieval Technology - 13th Asia Information Retrieval Societies Conference, AIRS 2017, Jeju Island, South Korea, November 22-24, 2017, Proceedings

doi dblp

A Collaborative Neural Model for Rating Prediction by Leveraging User Reviews and Product Images.

Wenwen Ye|Yongfeng Zhang|Wayne Xin Zhao|Xu Chen|Zheng Qin

Information Retrieval Technology - 13th Asia Information Retrieval Societies Conference, AIRS 2017, Jeju Island, South Korea, November 22-24, 2017, Proceedings

doi dblp

Fast Algorithms for Pareto Optimal Group-based Skyline.

Wenhui Yu|Zheng Qin|Jinfei Liu|Li Xiong|Xu Chen|Huidi Zhang

Proceedings of the 2017 ACM on Conference on Information and Knowledge Management, CIKM 2017, Singapore, November 06 - 10, 2017

doi dblp

Joint Representation Learning for Top-N Recommendation with Heterogeneous Information Sources.

Yongfeng Zhang|Qingyao Ai|Xu Chen|W. Bruce Croft

Proceedings of the 2017 ACM on Conference on Information and Knowledge Management, CIKM 2017, Singapore, November 06 - 10, 2017

doi dblp

Learning a Hierarchical Embedding Model for Personalized Product Search.

Qingyao Ai|Yongfeng Zhang|Keping Bi|Xu Chen|W. Bruce Croft

Proceedings of the 40th International ACM SIGIR Conference on Research and Development in Information Retrieval, Shinjuku, Tokyo, Japan, August 7-11, 2017

doi dblp

Personalized Key Frame Recommendation.

Xu Chen|Yongfeng Zhang|Qingyao Ai|Hongteng Xu|Junchi Yan|Zheng Qin

Proceedings of the 40th International ACM SIGIR Conference on Research and Development in Information Retrieval, Shinjuku, Tokyo, Japan, August 7-11, 2017

2016

doi dblp

Learning to Rank Features for Recommendation over Multiple Categories.

Xu Chen|Zheng Qin|Yongfeng Zhang|Tao Xu

Proceedings of the 39th International ACM SIGIR conference on Research and Development in Information Retrieval, SIGIR 2016, Pisa, Italy, July 17-21, 2016

doi dblp

HLBPR: A Hybrid Local Bayesian Personal Ranking Method.

Xu Chen|Pengfei Wang|Zheng Qin|Yongfeng Zhang

Proceedings of the 25th International Conference on World Wide Web, WWW 2016, Montreal, Canada, April 11-15, 2016, Companion Volume