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One Chatbot Per Person: Creating Personalized Chatbots based on Implicit User Profiles


Sep 02, 2021
Zhengyi Ma, Zhicheng Dou, Yutao Zhu, Hanxun Zhong, Ji-Rong Wen

* Accepted By SIGIR 2021, Full Papers. The code is available at https://github.com/zhengyima/DHAP 

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Contrastive Learning of User Behavior Sequence for Context-Aware Document Ranking


Aug 24, 2021
Yutao Zhu, Jian-Yun Nie, Zhicheng Dou, Zhengyi Ma, Xinyu Zhang, Pan Du, Xiaochen Zuo, Hao Jiang

* Accepted by CIKM 2021 

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Pre-training for Ad-hoc Retrieval: Hyperlink is Also You Need


Aug 20, 2021
Zhengyi Ma, Zhicheng Dou, Wei Xu, Xinyu Zhang, Hao Jiang, Zhao Cao, Ji-Rong Wen

* Camera-ready version, CIKM 2021 Full Paper, the codes are available at https://github.com/zhengyima/anchors 

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