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Distributional Reward Estimation for Effective Multi-Agent Deep Reinforcement Learning


Oct 14, 2022
Jifeng Hu, Yanchao Sun, Hechang Chen, Sili Huang, haiyin piao, Yi Chang, Lichao Sun

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Learning the Network of Graphs for Graph Neural Networks


Oct 08, 2022
Yixiang Shan, Jielong Yang, Xing Liu, Yixing Gao, Hechang Chen, Shuzhi Sam Ge

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A Coarse-to-fine Cascaded Evidence-Distillation Neural Network for Explainable Fake News Detection


Sep 29, 2022
Zhiwei Yang, Jing Ma, Hechang Chen, Hongzhan Lin, Ziyang Luo, Yi Chang

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* Accepted by COLING 2022. The 29th International Conference on Computational Linguistics, Gyeongju, Republic of Korea 

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Sigmoidally Preconditioned Off-policy Learning:a new exploration method for reinforcement learning


May 20, 2022
Xing Chen, Dongcui Diao, Hechang Chen, Hengshuai Yao, Jielong Yang, Haiyin Piao, Zhixiao Sun, Bei Jiang, Yi Chang

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Enhanced Doubly Robust Learning for Debiasing Post-click Conversion Rate Estimation


May 28, 2021
Siyuan Guo, Lixin Zou, Yiding Liu, Wenwen Ye, Suqi Cheng, Shuaiqiang Wang, Hechang Chen, Dawei Yin, Yi Chang

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* 10 pages, 3 figures, accepted by SIGIR 2021 

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Self-paced Ensemble for Highly Imbalanced Massive Data Classification


Sep 10, 2019
Zhining Liu, Wei Cao, Zhifeng Gao, Jiang Bian, Hechang Chen, Yi Chang, Tie-Yan Liu

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