Ji Qi

Department of Computer Science. The University of Hong Kong.

Room 312, CYC Building,

The Univ. of Hong Kong, China

I am a Ph.D. student in the Department of Computer Science at the University of Hong Kong. I am under the supervision of Prof. Heming Cui.

Research Interests:

I am broadly interested in distributed systems, networking, and security. More recently, I have been focusing on improving the performance of distributed systems (e.g., blockchain) by co-designing the protocol layer with the network layer.


I received my Master degree in the School of Software at Tsinghua University, where I worked with Prof. Kueiming Lo on formal modeling and analysis of network protocols. Before that I received my Bachelor degree in School of Software at Beijing Institute of Technology.


  1. SOSP
    BIDL: A High-throughput, Low-latency Permissioned Blockchain Framework for Datacenter Networks
    Qi, Ji, Chen, Xusheng, Jiang, Yunpeng, Jiang, Jianyu, Shen, Tianxiang, Zhao, Shixiong, Wang, Sen, Zhang, Gong, Chen, Li, Au, Man Ho, and Cui, Heming
    In The 28th ACM Symposium on Operating Systems Principles, 2021
  2. Performance
    Efficient and DoS-resistant Consensus for Permissioned Blockchains
    Chen, Xusheng, Zhao, Shixiong, Qi, Ji, Jiang, Jianyu, Song, Haoze, Wang, Cheng, Li, Tsz On, Chan, Hubert, Zhang, Fengwei, Luo, Xiapu, Wang, Sen, Zhang, Gong, and Cui, Heming
    In 39th International Symposium on Computer Performance, Modeling, Measurements and Evaluation 2021, 2021
    DAENet: Making Strong Anonymity Scale in a Fully Decentralized Network
    Shen, Tianxiang, Jiang, Jianyu, Jiang, Yunpeng, Chen, Xusheng, Qi, Ji, Zhao, Shixiong, Zhang, Fengwei, Luo, Xiapu, and Cui, Heming
    IEEE Transactions on Dependable and Secure Computing, 2021
  4. DSN
    UPA: An Automated, Accurate and Efficient Differentially Private Big-data Mining System
    Li, Tsz On, Jiang, Jianyu, Qi, Ji, So, Chi Chiu, Ma, Jiacheng, Chen, Xusheng, Shen, Tianxiang, Cui, Heming, Wang, Yuexuan, and Wang, Peng
    In 2020 50th Annual IEEE/IFIP International Conference on Dependable Systems and Networks (DSN), 2020
  5. DSN
    HAMS: High Availability for Distributed Machine Learning Service Graphs
    Zhao, Shixiong, Chen, Xusheng, Wang, Cheng, Li, Fanxin, Qi, Ji, Cui, Heming, Li, Cheng, and Wang, Sen
    In 2020 50th Annual IEEE/IFIP International Conference on Dependable Systems and Networks (DSN), 2020
    Formal Codesign and Implementation for Multifunction Vehicle Bus Circuits
    Qi, Ji, and Lo, Kueiming
    IEEE Transactions on Vehicular Technology, 2019