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Generating Negative Samples for Sequential Recommendation


Aug 07, 2022
Yongjun Chen, Jia Li, Zhiwei Liu, Nitish Shirish Keskar, Huan Wang, Julian McAuley, Caiming Xiong


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Evidential Temporal-aware Graph-based Social Event Detection via Dempster-Shafer Theory


May 24, 2022
Jiaqian Ren, Lei Jiang, Hao Peng, Zhiwei Liu, Jia Wu, Philip S. Yu

* Accepted by ICWS2022 

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Improving Contrastive Learning with Model Augmentation


Mar 25, 2022
Zhiwei Liu, Yongjun Chen, Jia Li, Man Luo, Philip S. Yu, Caiming Xiong

* Preprint. Still under reivew 

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Choose Your QA Model Wisely: A Systematic Study of Generative and Extractive Readers for Question Answering


Mar 14, 2022
Man Luo, Kazuma Hashimoto, Semih Yavuz, Zhiwei Liu, Chitta Baral, Yingbo Zhou


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Large-scale Personalized Video Game Recommendation via Social-aware Contextualized Graph Neural Network


Feb 11, 2022
Liangwei Yang, Zhiwei Liu, Yu Wang, Chen Wang, Ziwei Fan, Philip S. Yu


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Intent Contrastive Learning for Sequential Recommendation


Feb 05, 2022
Yongjun Chen, Zhiwei Liu, Jia Li, Julian McAuley, Caiming Xiong


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Sequential Recommendation via Stochastic Self-Attention


Jan 16, 2022
Ziwei Fan, Zhiwei Liu, Yu Wang, Alice Wang, Zahra Nazari, Lei Zheng, Hao Peng, Philip S. Yu

* Accepted by TheWebConf 2022 

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Multi-initialization Optimization Network for Accurate 3D Human Pose and Shape Estimation


Dec 24, 2021
Zhiwei Liu, Xiangyu Zhu, Lu Yang, Xiang Yan, Ming Tang, Zhen Lei, Guibo Zhu, Xuetao Feng, Yan Wang, Jinqiao Wang

* accepted by ACM Multimedia 2021 

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Pre-training Recommender Systems via Reinforced Attentive Multi-relational Graph Neural Network


Nov 28, 2021
Xiaohan Li, Zhiwei Liu, Stephen Guo, Zheng Liu, Hao Peng, Philip S. Yu, Kannan Achan


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