Junjie Chen
PhD candidate
Department of Computer Science, City University of Hong Kong
Email: junjchen9-c at my dot cityu dot edu dot hk
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Biography
I will be staying at National University of Singapore, advised by Prof. Yingkai Li, until mid-March, and then start my Postdoc.
I obtained my PhD degree from the Department of Computer Science, City University of Hong Kong in Feb 2025, supervised by Prof. Minming Li.
I was a visiting student at OSIPP at Osaka University from Sept 2023 to Aug 2024, advised by Prof. Takuro Yamashita.
In Nov 2019, I received my M.Phil. degree from Department of Computer Science, Hong Kong Baptist University, supervised by Prof. William K. Cheung.
Interests
My research is situated at the interface between economics and computer science, especially focusing on information design (e.g., information/data pricing, signaling) and contract design.
Research
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xxxxxxxx Contracts xxxxx, (submitted)
(alpha-beta) Anonymous Author(s) and Junjie Chen
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The Design of Monopoly Information Broker, (working paper, arXiv)
(alpha-beta) Junjie Chen and Takuro Yamashita
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Hiring for An Uncertain Task: Joint Design of Information and Contracts, (SODA, arXiv), 2025
(alpha-beta) Matteo Castiglioni and Junjie Chen
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A Reduction from Multi-Parameter to Single-Parameter Bayesian Contract Design, (SODA, arXiv), 2025
(alpha-beta) Matteo Castiglioni, Junjie Chen, Minming Li, Haifeng Xu and Song Zuo
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Bayesian Calibrated Click-through Auction, (ICALP, arXiv), 2024
(alpha-beta) Junjie Chen, Minming Li, Haifeng Xu and Song Zuo
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Selling Data To a Machine Learner: Pricing via Costly Signaling, (ICML), 2022
(alpha-beta) Junjie Chen, Minming Li and Haifeng Xu
2019 and before
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Chance-Constrained Submodular Knapsack Problem, (COCOON), 2019
(alpha-beta) Junjie Chen and Takanori Maehara
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Similarity Preserving Deep Asymmetric Quantization for Image Retrieval, (AAAI), 2019
Junjie Chen and William Cheung
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Learning Deep Unsupervised Binary Codes for Image Retrieval, (IJCAI), 2018
Junjie Chen, William Cheung and Anran Wang
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APhash: Anchor-based Probability Hashing for Image Retrieval, (ICASSP), 2018
Junjie Chen, Anran Wang and William Cheung
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DDSH: Deep Distribution-Separating Hashing for Image Retrieval, (PCM), 2017
Junjie Chen and Anran Wang
Internship