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I am currently a PhD candidate under the supervision of Prof.Ke Yi. My research interests includes database theory and algorithms, data security and privacy, and machine learning. I obtained my Bachelor Degree of Engineering from the EE department of CityU.
Conference Papers
Wei Dong, Dajun Sun, and Ke Yi. “Better than Composition: How to Answer Multiple Relational Queries under Differential Privacy.” ACM SIGMOD International Conference on Management of Data (SIGMOD), June 2023.
Wei Dong, Ke Yi. “Universal Private Estimators.” ACM Symposium on Principles of Database Systems (PODS), June 2023.
Wei Dong, Yuting Liang, and Ke Yi. “Differentially Private Covariance Revisited.” Advances in Neural Information Processing Systems (NeurIPS), November 2022. [full version]
Juanru Fang, Wei Dong, and Ke Yi. “Shifted Inverse: A General Mechanism for Monotonic Functions under User Differential Privacy.” ACM Conference on Computer and Communications Security (CCS), November 2022. [pdf]
Yuan Qiu, Wei Dong, Ke Yi, Bin Wu and Feifei Li. “Releasing Private Data for Numerical Queries.” ACM SIGKDD Conference on Knowledge Discovery and Data Mining (KDD), August 2022. [pdf]
Wei Dong, Juanru Fang, Ke Yi, Yuchao Tao, and Ashwin Machanavajjhala. “R2T: Instance-optimal Truncation for Differentially Private Query Evaluation with Foreign Keys.” ACM SIGMOD International Conference on Management of Data (SIGMOD), June 2022. [pdf][code] (Best paper award)
Wei Dong, Ke Yi. “A Nearly Instance-optimal Differentially Private Mechanism for Conjunctive Queries.” ACM Symposium on Principles of Database Systems (PODS), June 2022. [full version]
Wei Dong, Ke Yi. “Residual Sensitivity for Differentially Private Multi-Way Joins.” ACM SIGMOD International Conference on Management of Data (SIGMOD), June 2021. [full version][code]
Education
| Since 2018 | Ph.D. in Computer Science and Engineering, HKUST |
| GPA 4.188 | |
| 2013-2017 | B.E. in Information Engineering, CityU |
| GPA 4.07, Rank 1/74 |
Internships
| Jun 2019 to Sep 2019 | Alibaba Innovative Research(AIR) Internship in Alibaba, Hangzhou |
| Topic: Materialized view |
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| Jul 2017 to May 2018 | Research Assistant at CityU supervised by Prof. Shuaicheng Li |
| Topic: Bioinfomatics |
Awards
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ACM SIGMOD Best Paper Award 2022, ACM SIGMOD
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ACM SIGMOD Research Highlight Award 2022, ACM SIGMOD
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RedBird Academic Excellence Award 2022, HKUST
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RedBird Academic Excellence Award 2018, HKUST
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Hong Kong PhD Fellowship 2018-2022, RGC of Hong Kong
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Top Anchor Award 2017, Department of EE, CityU
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CityU Scholarship 2016-2017, CityU
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Outstanding Student Price 2015, Department of EE, CityU
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CityU Mainland Entrance Scholarship 2013-2017, CityU