Zhiwei Liu

2026

doi dblp
AGP: Auto-Guided Prompt Refinement for Personalized Reranking in Recommender Systems.
Chen Wang|Mingdai Yang|Zhiwei Liu|Pan Li|Linsey Pang|Qingsong Wen|Philip S. Yu
Proceedings of the Nineteenth ACM International Conference on Web Search and Data Mining, WSDM Companion 2026, Boise Centre, Boise, ID, USA, February 22-26, 2026

2025

doi dblp
Graph-Sequential Alignment and Uniformity: Toward Enhanced Recommendation Systems.
Yuwei Cao|Liangwei Yang|Zhiwei Liu|Yuqing Liu|Chen Wang|Yueqing Liang|Hao Peng|Philip S. Yu
Companion Proceedings of the ACM on Web Conference 2025, WWW 2025, Sydney, NSW, Australia, 28 April 2025 - 2 May 2025
doi dblp
The 3rd Workshop on AI Agent for Information Retrieval: Generating and Ranking.
Qingsong Wen|Yongfeng Zhang|Zhiwei Liu|Julian J. McAuley|Hua Wei|Linsey Pang|Wei Liu|Philip S. Yu
Companion Proceedings of the ACM on Web Conference 2025, WWW 2025, Sydney, NSW, Australia, 28 April 2025 - 2 May 2025
doi dblp
Training Large Recommendation Models via Graph-Language Tokens Alignment.
Mingdai Yang|Zhiwei Liu|Liangwei Yang|Xiaolong Liu|Chen Wang|Hao Peng|Philip S. Yu
Companion Proceedings of the ACM on Web Conference 2025, WWW 2025, Sydney, NSW, Australia, 28 April 2025 - 2 May 2025

2024

doi dblp
Collaborative Alignment for Recommendation.
Chen Wang|Liangwei Yang|Zhiwei Liu|Xiaolong Liu|Mingdai Yang|Yueqing Liang|Philip S. Yu
Proceedings of the 33rd ACM International Conference on Information and Knowledge Management, CIKM 2024, Boise, ID, USA, October 21-25, 2024
doi dblp
AI Agent for Information Retrieval: Generating and Ranking.
Yongfeng Zhang|Zhiwei Liu|Qingsong Wen|Linsey Pang|Wei Liu|Philip S. Yu
Proceedings of the 33rd ACM International Conference on Information and Knowledge Management, CIKM 2024, Boise, ID, USA, October 21-25, 2024
doi dblp
Instruction-based Hypergraph Pretraining.
Mingdai Yang|Zhiwei Liu|Liangwei Yang|Xiaolong Liu|Chen Wang|Hao Peng|Philip S. Yu
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
Knowledge Graph Context-Enhanced Diversified Recommendation.
Xiaolong Liu|Liangwei Yang|Zhiwei Liu|Mingdai Yang|Chen Wang|Hao Peng|Philip S. Yu
Proceedings of the 17th ACM International Conference on Web Search and Data Mining, WSDM 2024, Merida, Mexico, March 4-8, 2024
doi dblp
Unified Pretraining for Recommendation via Task Hypergraphs.
Mingdai Yang|Zhiwei Liu|Liangwei Yang|Xiaolong Liu|Chen Wang|Hao Peng|Philip S. Yu
Proceedings of the 17th ACM International Conference on Web Search and Data Mining, WSDM 2024, Merida, Mexico, March 4-8, 2024

2023

doi dblp
Zero-shot Item-based Recommendation via Multi-task Product Knowledge Graph Pre-Training.
Ziwei Fan|Zhiwei Liu|Shelby Heinecke|Jianguo Zhang|Huan Wang|Caiming Xiong|Philip S. Yu
Proceedings of the 32nd ACM International Conference on Information and Knowledge Management, CIKM 2023, Birmingham, United Kingdom, October 21-25, 2023
doi dblp
Graph-based Alignment and Uniformity for Recommendation.
Liangwei Yang|Zhiwei Liu|Chen Wang|Mingdai Yang|Xiaolong Liu|Jing Ma|Philip S. Yu
Proceedings of the 32nd ACM International Conference on Information and Knowledge Management, CIKM 2023, Birmingham, United Kingdom, October 21-25, 2023
doi dblp
Group Identification via Transitional Hypergraph Convolution with Cross-view Self-supervised Learning.
Mingdai Yang|Zhiwei Liu|Liangwei Yang|Xiaolong Liu|Chen Wang|Hao Peng|Philip S. Yu
Proceedings of the 32nd ACM International Conference on Information and Knowledge Management, CIKM 2023, Birmingham, United Kingdom, October 21-25, 2023
doi dblp
Ranking-based Group Identification via Factorized Attention on Social Tripartite Graph.
Mingdai Yang|Zhiwei Liu|Liangwei Yang|Xiaolong Liu|Chen Wang|Hao Peng|Philip S. Yu
Proceedings of the Sixteenth ACM International Conference on Web Search and Data Mining, WSDM 2023, Singapore, 27 February 2023 - 3 March 2023.
doi dblp
Mutual Wasserstein Discrepancy Minimization for Sequential Recommendation.
Ziwei Fan|Zhiwei Liu|Hao Peng|Philip S. Yu
Proceedings of the ACM Web Conference 2023, WWW 2023, Austin, TX, USA, 30 April 2023 - 4 May 2023

2022

doi dblp
Federated Social Recommendation with Graph Neural Network.
Zhiwei Liu|Liangwei Yang|Ziwei Fan|Hao Peng|Philip S. Yu
ACM Transactions on Intelligent Systems and Technology (TIST) 2022 Volume 13 Issue 4
doi dblp
ContrastVAE: Contrastive Variational AutoEncoder for Sequential Recommendation.
Yu Wang|Hengrui Zhang|Zhiwei Liu|Liangwei Yang|Philip S. Yu
Proceedings of the 31st ACM International Conference on Information & Knowledge Management, Atlanta, GA, USA, October 17-21, 2022
doi dblp
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
Proceedings of the 31st ACM International Conference on Information & Knowledge Management, Atlanta, GA, USA, October 17-21, 2022
doi dblp
Explanation Guided Contrastive Learning for Sequential Recommendation.
Lei Wang|Ee-Peng Lim|Zhiwei Liu|Tianxiang Zhao
Proceedings of the 31st ACM International Conference on Information & Knowledge Management, Atlanta, GA, USA, October 17-21, 2022
doi dblp
Intent Contrastive Learning for Sequential Recommendation.
Yongjun Chen|Zhiwei Liu|Jia Li|Julian J. McAuley|Caiming Xiong
WWW '22: The ACM Web Conference 2022, Virtual Event, Lyon, France, April 25 - 29, 2022
doi dblp
Sequential Recommendation via Stochastic Self-Attention.
Ziwei Fan|Zhiwei Liu|Yu Wang|Alice Wang|Zahra Nazari|Lei Zheng|Hao Peng|Philip S. Yu
WWW '22: The ACM Web Conference 2022, Virtual Event, Lyon, France, April 25 - 29, 2022
doi dblp
Large-scale Personalized Video Game Recommendation via Social-aware Contextualized Graph Neural Network.
Liangwei Yang|Zhiwei Liu|Yu Wang|Chen Wang|Ziwei Fan|Philip S. Yu
WWW '22: The ACM Web Conference 2022, Virtual Event, Lyon, France, April 25 - 29, 2022

2021

doi dblp
Modeling Sequences as Distributions with Uncertainty for Sequential Recommendation.
Ziwei Fan|Zhiwei Liu|Shen Wang|Lei Zheng|Philip S. Yu
CIKM '21: The 30th ACM International Conference on Information and Knowledge Management, Virtual Event, Queensland, Australia, November 1 - 5, 2021
doi dblp
Continuous-Time Sequential Recommendation with Temporal Graph Collaborative Transformer.
Ziwei Fan|Zhiwei Liu|Jiawei Zhang|Yun Xiong|Lei Zheng|Philip S. Yu
CIKM '21: The 30th ACM International Conference on Information and Knowledge Management, Virtual Event, Queensland, Australia, November 1 - 5, 2021
doi dblp
DSKReG: Differentiable Sampling on Knowledge Graph for Recommendation with Relational GNN.
Yu Wang|Zhiwei Liu|Ziwei Fan|Lichao Sun|Philip S. Yu
CIKM '21: The 30th ACM International Conference on Information and Knowledge Management, Virtual Event, Queensland, Australia, November 1 - 5, 2021
doi dblp
Augmenting Sequential Recommendation with Pseudo-Prior Items via Reversely Pre-training Transformer.
Zhiwei Liu|Ziwei Fan|Yu Wang|Philip S. Yu
SIGIR '21: The 44th International ACM SIGIR Conference on Research and Development in Information Retrieval, Virtual Event, Canada, July 11-15, 2021
doi dblp
ConsisRec: Enhancing GNN for Social Recommendation via Consistent Neighbor Aggregation.
Liangwei Yang|Zhiwei Liu|Yingtong Dou|Jing Ma|Philip S. Yu
SIGIR '21: The 44th International ACM SIGIR Conference on Research and Development in Information Retrieval, Virtual Event, Canada, July 11-15, 2021

2020

doi dblp
Enhancing Graph Neural Network-based Fraud Detectors against Camouflaged Fraudsters.
Yingtong Dou|Zhiwei Liu|Li Sun|Yutong Deng|Hao Peng|Philip S. Yu
CIKM '20: The 29th ACM International Conference on Information and Knowledge Management, Virtual Event, Ireland, October 19-23, 2020
doi dblp
Alleviating the Inconsistency Problem of Applying Graph Neural Network to Fraud Detection.
Zhiwei Liu|Yingtong Dou|Philip S. Yu|Yutong Deng|Hao Peng
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
Embedding and predicting the event at early stage.
Zhiwei Liu|Yang Yang|Zi Huang|Fumin Shen|Dongxiang Zhang|Heng Tao Shen
World Wide Web (WWW) 2019 Volume 22 Issue 3

2017

doi dblp
Event Early Embedding: Predicting Event Volume Dynamics at Early Stage.
Zhiwei Liu|Yang Yang|Zi Huang|Fumin Shen|Dongxiang Zhang|Heng Tao Shen
Proceedings of the 40th International ACM SIGIR Conference on Research and Development in Information Retrieval, Shinjuku, Tokyo, Japan, August 7-11, 2017