Chen Ma

2026

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Have We Really Understood Collaborative Information? An Empirical Investigation.
Xiaokun Zhang|Zhaochun Ren|Bowei He|Ziqiang Cui|Chen Ma
Proceedings of the Nineteenth ACM International Conference on Web Search and Data Mining, WSDM 2026, Boise, ID, USA, February 22-26, 2026
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From Token to Item: Enhancing Large Language Models for Recommendation via Item-aware Attention Mechanism.
Xiaokun Zhang|Bowei He|Jiamin Chen|Ziqiang Cui|Chen Ma
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

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Hierarchical Gating Network for Cross-Domain Sequential Recommendation.
Shuliang Wang|Jiabao Zhu|Yi Wang|Chen Ma|Xin Zhao|Yansen Zhang|Ziqiang Yuan|Sijie Ruan
ACM Transactions on Information Systems (TOIS) 2025 Volume 43 Issue 4
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Learning Binarized Representations with Pseudo-positive Sample Enhancement for Efficient Graph Collaborative Filtering.
Yankai Chen|Yue Que|Xinni Zhang|Chen Ma|Irwin King
ACM Transactions on Information Systems (TOIS) 2025 Volume 43 Issue 5
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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
Causality-aware Graph Aggregation Weight Estimator for Popularity Debiasing in Top-K Recommendation.
Yue Que|Yingyi Zhang|Xiangyu Zhao|Chen Ma
Proceedings of the 34th ACM International Conference on Information and Knowledge Management, CIKM 2025, Seoul, Republic of Korea, November 10-14, 2025
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Comprehending Knowledge Graphs with Large Language Models for Recommender Systems.
Ziqiang Cui|Yunpeng Weng|Xing Tang|Fuyuan Lyu|Dugang Liu|Xiuqiang He|Chen Ma
Proceedings of the 48th International ACM SIGIR Conference on Research and Development in Information Retrieval, SIGIR 2025, Padua, Italy, July 13-18, 2025
doi dblp
Fusion Matters: Learning Fusion in Deep Click-through Rate Prediction Models.
Kexin Zhang|Fuyuan Lyu|Xing Tang|Dugang Liu|Chen Ma|Kaize Ding|Xiuqiang He|Xue Liu
Proceedings of the Eighteenth ACM International Conference on Web Search and Data Mining, WSDM 2025, Hannover, Germany, March 10-14, 2025

2024

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Context Matters: Enhancing Sequential Recommendation with Context-aware Diffusion-based Contrastive Learning.
Ziqiang Cui|Haolun Wu|Bowei He|Ji Cheng|Chen Ma
Proceedings of the 33rd ACM International Conference on Information and Knowledge Management, CIKM 2024, Boise, ID, USA, October 21-25, 2024
doi dblp
Interpretable Triplet Importance for Personalized Ranking.
Bowei He|Chen Ma
Proceedings of the 33rd ACM International Conference on Information and Knowledge Management, CIKM 2024, Boise, ID, USA, October 21-25, 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

2023

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A Multi-Objective Optimization Framework for Multi-Stakeholder Fairness-Aware Recommendation.
Haolun Wu|Chen Ma|Bhaskar Mitra|Fernando Diaz|Xue Liu
ACM Transactions on Information Systems (TOIS) 2023 Volume 41 Issue 2
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Knowledge-graph-enabled biomedical entity linking: a survey.
Jiyun Shi|Zhimeng Yuan|Wenxuan Guo|Chen Ma|Jiehao Chen|Meihui Zhang
World Wide Web (WWW) 2023 Volume 26 Issue 5
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Dynamic Embedding Size Search with Minimum Regret for Streaming Recommender System.
Bowei He|Xu He|Renrui Zhang|Yingxue Zhang|Ruiming Tang|Chen Ma
Proceedings of the 32nd ACM International Conference on Information and Knowledge Management, CIKM 2023, Birmingham, United Kingdom, October 21-25, 2023
doi dblp
Improving Long-Tail Item Recommendation with Graph Augmentation.
Sichun Luo|Chen Ma|Yuanzhang Xiao|Linqi Song
Proceedings of the 32nd ACM International Conference on Information and Knowledge Management, CIKM 2023, Birmingham, United Kingdom, October 21-25, 2023
doi dblp
WSFE: Wasserstein Sub-graph Feature Encoder for Effective User Segmentation in Collaborative Filtering.
Yankai Chen|Yifei Zhang|Menglin Yang|Zixing Song|Chen Ma|Irwin King
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
Controllable Universal Fair Representation Learning.
Yue Cui|Chen Ma|Kai Zheng|Lei Chen|Xiaofang Zhou
Proceedings of the ACM Web Conference 2023, WWW 2023, Austin, TX, USA, 30 April 2023 - 4 May 2023
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Dynamically Expandable Graph Convolution for Streaming Recommendation.
Bowei He|Xu He|Yingxue Zhang|Ruiming Tang|Chen Ma
Proceedings of the ACM Web Conference 2023, WWW 2023, Austin, TX, USA, 30 April 2023 - 4 May 2023

2022

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Adapting Triplet Importance of Implicit Feedback for Personalized Recommendation.
Haolun Wu|Chen Ma|Yingxue Zhang|Xue Liu|Ruiming Tang|Mark Coates
Proceedings of the 31st ACM International Conference on Information & Knowledge Management, Atlanta, GA, USA, October 17-21, 2022
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Joint Multisided Exposure Fairness for Recommendation.
Haolun Wu|Bhaskar Mitra|Chen Ma|Fernando Diaz|Xue Liu
SIGIR '22: The 45th International ACM SIGIR Conference on Research and Development in Information Retrieval, Madrid, Spain, July 11 - 15, 2022

2021

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TIE: A Framework for Embedding-based Incremental Temporal Knowledge Graph Completion.
Jiapeng Wu|Yishi Xu|Yingxue Zhang|Chen Ma|Mark Coates|Jackie Chi Kit Cheung
SIGIR '21: The 44th International ACM SIGIR Conference on Research and Development in Information Retrieval, Virtual Event, Canada, July 11-15, 2021

2020

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Neighbor Interaction Aware Graph Convolution Networks for Recommendation.
Jianing Sun|Yingxue Zhang|Wei Guo|Huifeng Guo|Ruiming Tang|Xiuqiang He|Chen Ma|Mark Coates
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

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Gated Attentive-Autoencoder for Content-Aware Recommendation.
Chen Ma|Peng Kang|Bin Wu|Qinglong Wang|Xue Liu
Proceedings of the Twelfth ACM International Conference on Web Search and Data Mining, WSDM 2019, Melbourne, VIC, Australia, February 11-15, 2019

2018

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Point-of-Interest Recommendation: Exploiting Self-Attentive Autoencoders with Neighbor-Aware Influence.
Chen Ma|Yingxue Zhang|Qinglong Wang|Xue Liu
Proceedings of the 27th ACM International Conference on Information and Knowledge Management, CIKM 2018, Torino, Italy, October 22-26, 2018