| 2026 | AAAI | FedAU2: Attribute Unlearning for User-Level Federated Recommender Systems with Adaptive and Robust Adversarial Training. | Yuyuan Li, Junjie Fang, Fengyuan Yu, Xichun Sheng, Tianyu Du, Xuyang Teng, Shaowei Jiang, Linbo Jiang, Jianan Lin, Chaochao Chen |
| 2026 | AAAI | Targeting Borderline Fraudsters: Multi-View Hypergraph Fraud Detection with LLM-Guided Contrastive Learning. | Rui Ou, Kun Zhu, Nana Zhang, Jiangtong Li, Chaochao Chen, Yuhua Xu, Changjun Jiang |
| 2026 | AAAI | Potent but Stealthy: Rethink Profile Pollution Against Sequential Recommendation via Bi-Level Constrained Reinforcement Paradigm. | Jiajie Su, Zihan Nan, Yunshan Ma, Xiaobo Xia, Xiaohua Feng, Weiming Liu, Xiang Chen, Xiaolin Zheng, Chaochao Chen |
| 2026 | AAAI | TOFA: Training-Free One-Shot Federated Adaptation for Vision-Language Models. | Li Zhang, Zhongxuan Han, Xiaohua Feng, Jiaming Zhang, Yuyuan Li, Linbo Jiang, Jianan Lin, Chaochao Chen |
| 2026 | WWW | STG-DGR: Fraud Detection on Streaming Transaction Graphs with Diffusion-based Generative Replay. | Rui Ou, Kun Zhu, Nana Zhang, Jiangtong Li, Chaochao Chen, Changjun Jiang |
| 2026 | WWW | Sharpness-Aware Minimization for Generalized Embedding Learning in Federated Recommendation. | Fengyuan Yu, Xiaohua Feng, Yuyuan Li, Changwang Zhang, Jun Wang, Chaochao Chen |
| 2026 | WWW | Taming the Long Tail: Efficient Item-wise Sharpness-Aware Minimization for LLM-based Recommender Systems. | Jiaming Zhang, Yuyuan Li, Xiaohua Feng, Li Zhang, Longfei Li, Jun Zhou, Chaochao Chen |
| 2026 | WWW | LLM-enhanced Federated Graph Learning with Geometry-aware Graph Projection and Shared Subspace Aggregation. | Pengyang Zhou, Zhihao Huang, Jiahe Xu, Wu Wen, Xiaolin Zheng, Chaochao Chen, Jianwei Yin |
| 2025 | AAAI | DR-VAE: Debiased and Representation-enhanced Variational Autoencoder for Collaborative Recommendation. | Fan Wang, Chaochao Chen, Weiming Liu, Minye Lei, Jintao Chen, Yuwen Liu, Xiaolin Zheng, Jianwei Yin |
| 2025 | AAAI | Sim4Rec: Data-Free Model Extraction Attack on Sequential Recommendation. | Yihao Wang, Jiajie Su, Chaochao Chen, Meng Han, Chi Zhang, Jun Wang |
| 2025 | AAAI | LoGoFair: Post-Processing for Local and Global Fairness in Federated Learning. | Li Zhang, Chaochao Chen, Zhongxuan Han, Qiyong Zhong, Xiaolin Zheng |
| 2025 | AAAI | FedGOG: Federated Graph Out-of-Distribution Generalization with Diffusion Data Exploration and Latent Embedding Decorrelation. | Pengyang Zhou, Chaochao Chen, Weiming Liu, Xinting Liao, Wenkai Shen, Jiahe Xu, Zhihui Fu, Jun Wang, Wu Wen, Xiaolin Zheng |
| 2025 | CIKM | Personalized Federated Recommendation with Multi-Faceted User Representation and Global Consistent Prototype. | Jiaming Qian, Xinting Liao, Xiangmou Qu, Zhihui Fu, Xingyu Lou, Changwang Zhang, Pengyang Zhou, Zijun Zhou, Jun Wang, Chaochao Chen |
| 2025 | ICLR | Controllable Unlearning for Image-to-Image Generative Models via ϵ-Constrained Optimization. | Xiaohua Feng, Yuyuan Li, Chaochao Chen, Li Zhang, Longfei Li, Jun Zhou, Xiaolin Zheng |
| 2025 | ICML | FOCoOp: Enhancing Out-of-Distribution Robustness in Federated Prompt Learning for Vision-Language Models. | Xinting Liao, Weiming Liu, Jiaming Qian, Pengyang Zhou, Jiahe Xu, Wenjie Wang, Chaochao Chen, Xiaolin Zheng, Tat-Seng Chua |
| 2025 | ICML | Efficient Source-free Unlearning via Energy-Guided Data Synthesis and Discrimination-Aware Multitask Optimization. | Xiuyuan Wang, Chaochao Chen, Weiming Liu, Xinting Liao, Fan Wang, Xiaolin Zheng |
| 2025 | IJCAI | Heterogeneous Temporal Hypergraph Neural Network. | Huan Liu, Pengfei Jiao, Mengzhou Gao, Chaochao Chen, Di Jin |
| 2025 | KDD | Modality-Aware Diffusion Augmentation with Consistent Subspace Disentanglement for Session-based Recommendation. | Jiajie Su, Chaochao Chen, Weiming Liu, Yuhang Wang, Yihao Wang, Zheqi Lv, Xiaolin Zheng, Jianwei Yin |
| 2025 | KDD | Tackling Federated Long-Tailed Learning via Synthetic Feature-Based Decoupled Training. | Huabin Zhu, Chaochao Chen, Xinting Liao, Pengyang Zhou, Xiaolin Zheng |
| 2025 | WWW | Joint Similarity Item Exploration and Overlapped User Guidance for Multi-Modal Cross-Domain Recommendation. | Weiming Liu, Chaochao Chen, Jiahe Xu, Xinting Liao, Fan Wang, Xiaolin Zheng, Zhihui Fu, Ruiguang Pei, Jun Wang |
| 2025 | WWW | Plug and Play: Enabling Pluggable Attribute Unlearning in Recommender Systems. | Xiaohua Feng, Yuyuan Li, Fengyuan Yu, Li Zhang, Chaochao Chen, Xiaolin Zheng |
| 2025 | SIGIR | Training-free Periodic Interest Augmentation in Incremental Recommendation. | Heyuan Huang, Xingyu Lou, Changwang Zhang, Chaochao Chen, Kuiyao Dong, Feng Lu, Han Lei, Yihao Wang, Wangchunshu Zhou, Jun Wang |
| 2025 | SIGIR | Joint Item Embedding Dual-view Exploration and Adaptive Local-Global Fusion for Federated Recommendation. | Pengyang Zhou, Chaochao Chen, Weiming Liu, Wenkai Shen, Xinting Liao, Huarong Deng, Zhihui Fu, Jun Wang, Wu Wen, Xiaolin Zheng |
| 2025 | WSDM | FedGF: Enhancing Structural Knowledge via Graph Factorization for Federated Graph Learning. | Pengyang Zhou, Chaochao Chen, Weiming Liu, Xinting Liao, Fengyuan Yu, Zhihui Fu, Xingyu Lou, Wu Wen, Xiaolin Zheng, Jun Wang |
| 2024 | AAAI | Learning Accurate and Bidirectional Transformation via Dynamic Embedding Transportation for Cross-Domain Recommendation. | Weiming Liu, Chaochao Chen, Xinting Liao, Mengling Hu, Yanchao Tan, Fan Wang, Xiaolin Zheng, Yew Soon Ong |
| 2024 | AAAI | Intra- and Inter-group Optimal Transport for User-Oriented Fairness in Recommender Systems. | Zhongxuan Han, Chaochao Chen, Xiaolin Zheng, Meng Li, Weiming Liu, Binhui Yao, Yuyuan Li, Jianwei Yin |
| 2024 | CIKM | DIIT: A Domain-Invariant Information Transfer Method for Industrial Cross-Domain Recommendation. | Heyuan Huang, Xingyu Lou, Chaochao Chen, Pengxiang Cheng, Yue Xin, Chengwei He, Xiang Liu, Jun Wang |
| 2024 | CVPR | Rethinking the Representation in Federated Unsupervised Learning with Non-IID Data. | Xinting Liao, Weiming Liu, Chaochao Chen, Pengyang Zhou, Fengyuan Yu, Huabin Zhu, Binhui Yao, Tao Wang, Xiaolin Zheng, Yanchao Tan |
| 2024 | EMNLP | Fine-grained Pluggable Gradient Ascent for Knowledge Unlearning in Language Models. | Xiaohua Feng, Chaochao Chen, Yuyuan Li, Zibin Lin |
| 2024 | ICDE | Logical Relation Modeling and Mining in Hyperbolic Space for Recommendation. | Yanchao Tan, Hang Lv, Zihao Zhou, Wenzhong Guo, Bo Xiong, Weiming Liu, Chaochao Chen, Shiping Wang, Carl Yang |
| 2024 | ICML | Reducing Item Discrepancy via Differentially Private Robust Embedding Alignment for Privacy-Preserving Cross Domain Recommendation. | Weiming Liu, Xiaolin Zheng, Chaochao Chen, Jiahe Xu, Xinting Liao, Fan Wang, Yanchao Tan, Yew-Soon Ong |
| 2024 | ICML | One for All: A Universal Generator for Concept Unlearnability via Multi-Modal Alignment. | Chaochao Chen, Jiaming Zhang, Yuyuan Li, Zhongxuan Han |
| 2024 | IJCAI | Protecting Split Learning by Potential Energy Loss. | Fei Zheng, Chaochao Chen, Lingjuan Lyu, Xinyi Fu, Xing Fu, Weiqiang Wang, Xiaolin Zheng, Jianwei Yin |
| 2024 | ICWS | Enhancing Attributed Graph Networks with Alignment and Uniformity Constraints for Session-based Recommendation. | Xinping Zhao, Chaochao Chen, Jiajie Su, Yizhao Zhang, Baotian Hu |
| 2024 | KDD | CE-RCFR: Robust Counterfactual Regression for Consensus-Enabled Treatment Effect Estimation. | Fan Wang, Chaochao Chen, Weiming Liu, Tianhao Fan, Xinting Liao, Yanchao Tan, Lianyong Qi, Xiaolin Zheng |
| 2024 | WWW | User Distribution Mapping Modelling with Collaborative Filtering for Cross Domain Recommendation. | Weiming Liu, Chaochao Chen, Xinting Liao, Mengling Hu, Jiajie Su, Yanchao Tan, Fan Wang |
| 2024 | SIGIR | Hypergraph Convolutional Network for User-Oriented Fairness in Recommender Systems. | Zhongxuan Han, Chaochao Chen, Xiaolin Zheng, Li Zhang, Yuyuan Li |
| 2024 | SIGIR | Revisit Targeted Model Poisoning on Federated Recommendation: Optimize via Multi-objective Transport. | Jiajie Su, Chaochao Chen, Weiming Liu, Zibin Lin, Shuheng Shen, Weiqiang Wang, Xiaolin Zheng |
| 2023 | AAAI | PPGenCDR: A Stable and Robust Framework for Privacy-Preserving Cross-Domain Recommendation. | Xinting Liao, Weiming Liu, Xiaolin Zheng, Binhui Yao, Chaochao Chen |
| 2023 | ACL | Robust Representation Learning with Reliable Pseudo-labels Generation via Self-Adaptive Optimal Transport for Short Text Clustering. | Xiaolin Zheng, Mengling Hu, Weiming Liu, Chaochao Chen, Xinting Liao |
| 2023 | CIKM | FedPSE: Personalized Sparsification with Element-wise Aggregation for Federated Learning. | Longfei Zheng, Yingting Liu, Xiaolong Xu, Chaochao Chen, Yuzhou Tang, Lei Wang, Xiaolong Hu |
| 2023 | CIKM | Decentralized Graph Neural Network for Privacy-Preserving Recommendation. | Xiaolin Zheng, Zhongyu Wang, Chaochao Chen, Jiashu Qian, Yao Yang |
| 2023 | ICDE | DCMT: A Direct Entire-Space Causal Multi-Task Framework for Post-Click Conversion Estimation. | Feng Zhu, Mingjie Zhong, Xinxing Yang, Longfei Li, Lu Yu, Tiehua Zhang, Jun Zhou, Chaochao Chen, Fei Wu, Guanfeng Liu, Yan Wang |
| 2023 | ICDM | Enhancing Personalized Healthcare via Capturing Disease Severity, Interaction, and Progression. | Yanchao Tan, Zihao Zhou, Leisheng Yu, Weiming Liu, Chaochao Chen, Guofang Ma, Xiao Hu, Vicki Stover Hertzberg, Carl Yang |
| 2023 | IJCAI | HyperFed: Hyperbolic Prototypes Exploration with Consistent Aggregation for Non-IID Data in Federated Learning. | Xinting Liao, Weiming Liu, Chaochao Chen, Pengyang Zhou, Huabin Zhu, Yanchao Tan, Jun Wang, Yue Qi |
| 2023 | IJCAI | Federated Probabilistic Preference Distribution Modelling with Compactness Co-Clustering for Privacy-Preserving Multi-Domain Recommendation. | Weiming Liu, Chaochao Chen, Xinting Liao, Mengling Hu, Jianwei Yin, Yanchao Tan, Longfei Zheng |
| 2023 | IJCAI | Reducing Communication for Split Learning by Randomized Top-k Sparsification. | Fei Zheng, Chaochao Chen, Lingjuan Lyu, Binhui Yao |
| 2023 | ICWS | Freshness or Accuracy, Why Not Both? Addressing Delayed Feedback via Dynamic Graph Neural Networks. | Xiaolin Zheng, Zhongyu Wang, Chaochao Chen, Feng Zhu, Jiashu Qian |
| 2023 | ICWS | Federated Learning on Non-iid Data via Local and Global Distillation. | Xiaolin Zheng, Senci Ying, Fei Zheng, Jianwei Yin, Longfei Zheng, Chaochao Chen, Fengqin Dong |
| 2023 | WWW | Intra and Inter Domain HyperGraph Convolutional Network for Cross-Domain Recommendation. | Zhongxuan Han, Xiaolin Zheng, Chaochao Chen, Wenjie Cheng, Yang Yao |
| 2023 | WWW | Joint Internal Multi-Interest Exploration and External Domain Alignment for Cross Domain Sequential Recommendation. | Weiming Liu, Xiaolin Zheng, Chaochao Chen, Jiajie Su, Xinting Liao, Mengling Hu, Yanchao Tan |
| 2023 | WWW | Enhancing Hierarchy-Aware Graph Networks with Deep Dual Clustering for Session-based Recommendation. | Jiajie Su, Chaochao Chen, Weiming Liu, Fei Wu, Xiaolin Zheng, Haoming Lyu |
| 2023 | WWW | INCREASE: Inductive Graph Representation Learning for Spatio-Temporal Kriging. | Chuanpan Zheng, Xiaoliang Fan, Cheng Wang, Jianzhong Qi, Chaochao Chen, Longbiao Chen |
| 2022 | CIKM | Cross-Network Social User Embedding with Hybrid Differential Privacy Guarantees. | Jiaqian Ren, Lei Jiang, Hao Peng, Lingjuan Lyu, Zhiwei Liu, Chaochao Chen, Jia Wu, Xu Bai, Philip S. Yu |
| 2022 | ICDE | Enhancing Recommendation with Automated Tag Taxonomy Construction in Hyperbolic Space. | Yanchao Tan, Carl Yang, Xiangyu Wei, Chaochao Chen, Longfei Li, Xiaolin Zheng |
| 2022 | IJCAI | Vertically Federated Graph Neural Network for Privacy-Preserving Node Classification. | Chaochao Chen, Jun Zhou, Longfei Zheng, Huiwen Wu, Lingjuan Lyu, Jia Wu, Bingzhe Wu, Ziqi Liu, Li Wang, Xiaolin Zheng |
| 2022 | IJCAI | MERIT: Learning Multi-level Representations on Temporal Graphs. | Binbin Hu, Zhengwei Wu, Jun Zhou, Ziqi Liu, Zhigang Huangfu, Zhiqiang Zhang, Chaochao Chen |
| 2022 | IJCAI | HCFRec: Hash Collaborative Filtering via Normalized Flow with Structural Consensus for Efficient Recommendation. | Fan Wang, Weiming Liu, Chaochao Chen, Mengying Zhu, Xiaolin Zheng |
| 2022 | KDD | 4SDrug: Symptom-based Set-to-set Small and Safe Drug Recommendation. | Yanchao Tan, Chengjun Kong, Leisheng Yu, Pan Li, Chaochao Chen, Xiaolin Zheng, Vicki Hertzberg, Carl Yang |
| 2022 | KDD | Trustworthy Graph Learning: Reliability, Explainability, and Privacy Protection. | Bingzhe Wu, Yatao Bian, Hengtong Zhang, Jintang Li, Junchi Yu, Liang Chen, Chaochao Chen, Junzhou Huang |
| 2022 | WWW | Differential Private Knowledge Transfer for Privacy-Preserving Cross-Domain Recommendation. | Chaochao Chen, Huiwen Wu, Jiajie Su, Lingjuan Lyu, Xiaolin Zheng, Li Wang |
| 2022 | WWW | Collaborative Filtering with Attribution Alignment for Review-based Non-overlapped Cross Domain Recommendation. | Weiming Liu, Xiaolin Zheng, Mengling Hu, Chaochao Chen |
| 2022 | SIGIR | Exploiting Variational Domain-Invariant User Embedding for Partially Overlapped Cross Domain Recommendation. | Weiming Liu, Xiaolin Zheng, Jiajie Su, Mengling Hu, Yanchao Tan, Chaochao Chen |
| 2022 | SIGIR | MetaCare++: Meta-Learning with Hierarchical Subtyping for Cold-Start Diagnosis Prediction in Healthcare Data. | Yanchao Tan, Carl Yang, Xiangyu Wei, Chaochao Chen, Weiming Liu, Longfei Li, Jun Zhou, Xiaolin Zheng |
| 2022 | UIC | An Intelligent Resource Scheduling Method with Edge Channel Deployment for BPM. | Bowen Liu, Wanchun Dou, Xiaokang Zhou, Xuyun Zhang, Lianyong Qi, Fei Dai, Chaochao Chen |
| 2021 | CIKM | Large-scale Secure XGB for Vertical Federated Learning. | Wenjing Fang, Derun Zhao, Jin Tan, Chaochao Chen, Chaofan Yu, Li Wang, Lei Wang, Jun Zhou, Benyu Zhang |
| 2021 | IJCAI | Cross-Domain Recommendation: Challenges, Progress, and Prospects. | Feng Zhu, Yan Wang, Chaochao Chen, Jun Zhou, Longfei Li, Guanfeng Liu |
| 2021 | KDD | When Homomorphic Encryption Marries Secret Sharing: Secure Large-Scale Sparse Logistic Regression and Applications in Risk Control. | Chaochao Chen, Jun Zhou, Li Wang, Xibin Wu, Wenjing Fang, Jin Tan, Lei Wang, Alex X. Liu, Hao Wang, Cheng Hong |
| 2020 | AAAI | Characterizing Membership Privacy in Stochastic Gradient Langevin Dynamics. | Bingzhe Wu, Chaochao Chen, Shiwan Zhao, Cen Chen, Yuan Yao, Guangyu Sun, Li Wang, Xiaolu Zhang, Jun Zhou |
| 2020 | CCS | Faster Secure Multiparty Computation of Adaptive Gradient Descent. | Wen-jie Lu, Yixuan Fang, Zhicong Huang, Cheng Hong, Chaochao Chen, Hunter Qu, Yajin Zhou, Kui Ren |
| 2020 | CIKM | Nebula: A Scalable Privacy-Preserving Machine Learning System in Ant Financial. | Cen Chen, Bingzhe Wu, Li Wang, Chaochao Chen, Jin Tan, Lei Wang, Jun Zhou, Benyu Zhang |
| 2020 | ECAI | Secure Social Recommendation Based on Secret Sharing. | Chaochao Chen, Liang Li, Bingzhe Wu, Cheng Hong, Li Wang, Jun Zhou |
| 2020 | IJCAI | A Graphical and Attentional Framework for Dual-Target Cross-Domain Recommendation. | Feng Zhu, Yan Wang, Chaochao Chen, Guanfeng Liu, Xiaolin Zheng |
| 2019 | AAAI | GeniePath: Graph Neural Networks with Adaptive Receptive Paths. | Ziqi Liu, Chaochao Chen, Longfei Li, Jun Zhou, Xiaolong Li, Le Song, Yuan Qi |
| 2019 | CIKM | DTCDR: A Framework for Dual-Target Cross-Domain Recommendation. | Feng Zhu, Chaochao Chen, Yan Wang, Guanfeng Liu, Xiaolin Zheng |
| 2019 | PAKDD | How Much Can A Retailer Sell? Sales Forecasting on Tmall. | Chaochao Chen, Ziqi Liu, Jun Zhou, Xiaolong Li, Yuan Qi, Yujing Jiao, Xingyu Zhong |
| 2018 | AAAI | Privacy Preserving Point-of-Interest Recommendation Using Decentralized Matrix Factorization. | Chaochao Chen, Ziqi Liu, Peilin Zhao, Jun Zhou, Xiaolong Li |
| 2018 | CIKM | Heterogeneous Graph Neural Networks for Malicious Account Detection. | Ziqi Liu, Chaochao Chen, Xinxing Yang, Jun Zhou, Xiaolong Li, Le Song |
| 2018 | DASFAA | An Industrial-Scale System for Heterogeneous Information Card Ranking in Alipay. | Zhiqiang Zhang, Chaochao Chen, Jun Zhou, Xiaolong Li |
| 2018 | IJCAI | A Deep Framework for Cross-Domain and Cross-System Recommendations. | Feng Zhu, Yan Wang, Chaochao Chen, Guanfeng Liu, Mehmet A. Orgun, Jia Wu |
| 2018 | KDD | Distributed Collaborative Hashing and Its Applications in Ant Financial. | Chaochao Chen, Ziqi Liu, Peilin Zhao, Longfei Li, Jun Zhou, Xiaolong Li |
| 2018 | PAKDD | A Local Online Learning Approach for Non-linear Data. | Xinxing Yang, Jun Zhou, Peilin Zhao, Cen Chen, Chaochao Chen, Xiaolong Li |
| 2017 | CCS | POSTER: Neural Network-based Graph Embedding for Malicious Accounts Detection. | Ziqi Liu, Chaochao Chen, Jun Zhou, Xiaolong Li, Feng Xu, Tao Chen, Le Song |
| 2017 | ICWSM | Sparse Overlap Cross-Platform Recommendation Via Adaptive Similarity Structure Regularization. | Hanqing Lu, Chaochao Chen, Qinyue Jiang |
| 2017 | KDD | KunPeng: Parameter Server based Distributed Learning Systems and Its Applications in Alibaba and Ant Financial. | Jun Zhou, Xiaolong Li, Peilin Zhao, Chaochao Chen, Longfei Li, Xinxing Yang, Qing Cui, Jin Yu, Xu Chen, Yi Ding, Yuan (Alan) Qi |
| 2016 | AAAI | Capturing Semantic Correlation for Item Recommendation in Tagging Systems. | Chaochao Chen, Xiaolin Zheng, Yan Wang, Fuxing Hong, Deren Chen |
| 2014 | AAAI | Context-Aware Collaborative Topic Regression with Social Matrix Factorization for Recommender Systems. | Chaochao Chen, Xiaolin Zheng, Yan Wang, Fuxing Hong, Zhen Lin |
| 2013 | WISE | Making Recommendations on Microblogs through Topic Modeling. | Chaochao Chen, Xiaolin Zheng, Chaofei Zhou, Deren Chen |
| 2011 | CHI | SoundVision: graphic communication method for blind users. | Chaochao Chen |
| 2007 | ISNN | Ultrasonic Sensor Based Fuzzy-Neural Control Algorithm of Obstacle Avoidance for Mobile Robot. | Hongbo Wang, Chaochao Chen, Zhen Huang |