I am a PhD student at Penn studying Computer Science advised by Prof. Boon Thau Loo and Prof. Vincent Liu. My research interests are distributed systems on big data problems. I also have interests in networking, cloud computing and machine learning. Before Penn, I worked with Prof. James Cheng at CUHK. I had graduate education at Tsinghua University in Computer Science, and undergraduate at Harbin Institute of Technology with first class honors.
SIGMOD 2018, NSDI 2017, SoCC 2016, KDD 2016, DASFAA 2016
Optimizing Declarative Graph Queries at Large Scale Qizhen Zhang, Akash Acharya, Hongzhi Chen, Simran Arora, Ang Chen, Vincent Liu and Boon Thau Loo ACM International Conference on Management of Data, SIGMOD 2019. [To appear]
Predicting Startup Crowdfunding Success through Longitudinal Social Engagement Analysis Qizhen Zhang, Tengyuan Ye, Meryem Essaidi, Shivani Agarwal, Vincent Liu and Boon Thau Loo ACM International Conference on Information and Knowledge Management, CIKM 2017. [pdf]
Architectural Implications on the Performance and Cost of Graph Analytics Systems Qizhen Zhang, Hongzhi Chen, Da Yan, James Cheng, Boon Thau Loo, Purushotham Bangalore ACM Symposium on Cloud Computing, SoCC 2017. [pdf]
Quegel: A General-Purpose System for Querying Big Graphs Qizhen Zhang, Da Yan, James Cheng Proceedings of the 2016 International Conference on Management of Data, SIGMOD 2016, pp. 2189-2192.
A General-Purpose Query-Centric Framework for Querying Big Graphs Da Yan, James Cheng, M. Tamer Özsu, Fan Yang, Yi Lu, John C. S. Lui, Qizhen Zhang, Wilfred Ng Proceedings of the VLDB Endowment, PVLDB 2016, no. 7, 564-575.
A Shapley Value Approach for Cost Allocation in the CloudQizhen Zhang, Haoran Wang, Yang Chen, Tao Qin, Ying Yan, Thomas MoscibrodaACM Symposium on Cloud Computing, SoCC 2015, Poster.
PhoneProtector: Protecting User Privacy on the Android-Based Mobile PlatformWeizhe Zhang, Hui He, Qizhen Zhang, Tai-hoon KimInternational Journal of Distributed Sensor Networks, IJDSN 2014.