Qichen Wang

I am a Ph.D. candidate from the Department of Computer Science and Technology at Hong Kong University of Science and Technology, supervised by Professor Ke Yi. Before that, I received my Bachelor’s Degree in Engineering from the Computer Science Department at Zhejiang University. During Aug. 2016 to Jan. 2017, I was a research intern in the Department of Systems Engineering and Engineering Management, The Chinese University of Hong Kong, supervised by Professor Hong Cheng and Professor Jeffrey Xu Yu. I also worked as a research intern in Alibaba, DAMO Academy from June 2019 to Oct. 2019.

I am expected to graduate in July 2022, and I am on the job market now. Please contact me if you are interested.

Research interest

Database Theory and Algorithms; Streaming Processing; Distributed and Parallel Computing; Query Processing for ML & ML for Query Processing; Privacy and Security in Query Processing.

Selected Publications

Conference papers

Qichen Wang and Ke Yi. “Conjunctive Queries with Comparisons.” ACM SIGMOD International Conference on Management of Data (SIGMOD), June 2022. PDF (Selected as the ACM SIGMOD Best Paper Honorable Mention)
Qichen Wang and Ke Yi. “Maintaining Acyclic Foreign-Key Joins Under Updates.” ACM SIGMOD International Conference on Management of Data (SIGMOD), June 2020. PDF
Weiguo Zheng, Qichen Wang, Jeffrey Xu Yu, Hong Cheng, and Lei Zou. “Efficient Computation of a Near-Maximum Independent Set over Evolving Graphs.” IEEE International Conference on Data Engineering (ICDE), April 2018.

Demo papers

Qichen Wang, Chaoqi Zhang, Danish Alsayed, Ke Yi, Bin Wu, Feifei Li, and Chaoqun Zhan. “Cquirrel: Continuous Query Processing over Acyclic Relational Schemas.” International Conference on Very Large Data Bases (VLDB), August 2021. System demonstration. PDF

Selected Awards

ACM SIGMOD Best Paper Honorable Mention award, 2022, ACM SIGMOD
RedBird Academic Excellence Award for PhD Student, 2022, HKUST
Postgraduate Studentship, 2017-2021, HKUST
Scholarship for Elite Students in Basic Science, 2013-2016, Zhejiang University