Sixiao Zhang

2025

doi dblp
Facet-Aware Multi-Head Mixture-of-Experts Model for Sequential Recommendation.
Mingrui Liu|Sixiao Zhang|Cheng Long
Proceedings of the Eighteenth ACM International Conference on Web Search and Data Mining, WSDM 2025, Hannover, Germany, March 10-14, 2025
doi dblp
Mask-based Membership Inference Attacks for Retrieval-Augmented Generation.
Mingrui Liu|Sixiao Zhang|Cheng Long
Proceedings of the ACM on Web Conference 2025, WWW 2025, Sydney, NSW, Australia, 28 April 2025- 2 May 2025

2024

doi dblp
Watermarking Recommender Systems.
Sixiao Zhang|Cheng Long|Wei Yuan|Hongxu Chen|Hongzhi Yin
Proceedings of the 33rd ACM International Conference on Information and Knowledge Management, CIKM 2024, Boise, ID, USA, October 21-25, 2024
doi dblp
Defense Against Model Extraction Attacks on Recommender Systems.
Sixiao Zhang|Hongzhi Yin|Hongxu Chen|Cheng Long
Proceedings of the 17th ACM International Conference on Web Search and Data Mining, WSDM 2024, Merida, Mexico, March 4-8, 2024

2023

doi dblp
Generating Counterfactual Hard Negative Samples for Graph Contrastive Learning.
Haoran Yang|Hongxu Chen|Sixiao Zhang|Xiangguo Sun|Qian Li|Xiangyu Zhao|Guandong Xu
Proceedings of the ACM Web Conference 2023, WWW 2023, Austin, TX, USA, 30 April 2023 - 4 May 2023

2022

doi dblp
Geometric Inductive Matrix Completion: A Hyperbolic Approach with Unified Message Passing.
Chengkun Zhang|Hongxu Chen|Sixiao Zhang|Guandong Xu|Junbin Gao
WSDM '22: The Fifteenth ACM International Conference on Web Search and Data Mining, Virtual Event / Tempe, AZ, USA, February 21 - 25, 2022
doi dblp
Unsupervised Graph Poisoning Attack via Contrastive Loss Back-propagation.
Sixiao Zhang|Hongxu Chen|Xiangguo Sun|Yicong Li|Guandong Xu
WWW '22: The ACM Web Conference 2022, Virtual Event, Lyon, France, April 25 - 29, 2022