Zhiwei Liu (刘 志伟)

Dr. Zhiwei Liu is a full-time research scientist at Salesforce Research. He received his Ph.D. degree from University of Illinois at Chicago, where he was advised by Prof. Philip S. Yu in the Big Data and Social Computing Lab.

Before joining UIC, Dr. Liu received B.Eng degree in computer science and technology from Yingcai Honor School of the University of Electronic Science and Technology of China, advised by Prof. Yang Yang.

Dr. Liu's research interests lie in data mining and machine learning. Specifically, those research works on graph neural networks, recommender systems, natural language understanding, etc.

Email: zliu213 at uic dot edu OR jim96liu at gmail dot com OR zhiweiliu at salesforce dot com

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July, 2019

Latest News

[Aug. 2022] Three papers accepted to CIKM 2022.

[July. 2022] Successfully defending my Ph.D. !

[Jan. 2022] Starting my first full-time job at Salesforce as a Research Scientist.

[Jan. 2022] Two papers accepted to The Web Conference 2022 (Acceptance rate: 323/1822 ~ 17.7%).

[Oct. 2021] Paper collaborated with Ziwei honored the best short paper nomination.

Selected Publications

Continuous-Time Sequential Recommendation with Temporal Graph Collaborative Transformer (coming soon)

Zhiwei Liu*, Ziwei Fan*,Jiawei Zhang, Yun Xiong, Lei Zheng, and Philip S. Yu (* is equal contribution)

ACM CIKM 2021

Augmenting Sequential Recommendation with Pseudo-Prior Items via Reversely Pre-training Transformer

Zhiwei Liu*, Ziwei Fan*, Yu Wang, Philip S. Yu

ACM 44th International ACM SIGIR Conference on Research and Development in Information Retrieval (SIGIR 2021)

Alleviating the Inconsistency Problem of Applying Graph Neural Network to Fraud Detection

Zhiwei Liu, Yingtong Dou, Yutong Deng, Hao Peng and Philip S. Yu

ACM 43rd International ACM SIGIR Conference on Research and Development in Information Retrieval (SIGIR 2020)

BasConv: Aggregating Heterogeneous Interactions for Basket Recommendation with Graph Convolutional Neural Network

Zhiwei Liu, Mengting Wan, Stephen Guo, Kannan Achan and Philip S. Yu

SIAM International Conference on Data Mining 2020 (SDM'20)

JSCN: Joint Spectral Convolutional Network for Cross Domain Recommendation

Zhiwei Liu, Lei Zheng, Jiawei Zhang, Jiayu Han, and Philip S. Yu

IEEE BigData 2019

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