jqi

Ji Qi

Institute of Software
Chinese Academy of Sciences
Email (work): qiji@iscas.ac.cn

I am an assistant professor at Institute of Software, Chinese Academy of Sciences.

Research Interests:

I am broadly interested in operating system, distributed systems, networking, and security. Recently, I have been focusing on the operating system support for heterogeneous multi-processor architecture.

Previously:

I received my Ph.D. degree in the Department of Computer Science at The University of Hong Kong (my supervisor is Prof. Heming Cui), where I created secure and high-performance distributed systems such as the in-datacenter permissioned blockchain. I received my Master degree in 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.

Selected Publications:

  • (Sigmetrics '25) Beaver: A High-Performance and Crash-Consistent File System Cache via PM-DRAM Collaborative Memory Tiering,
    Qinglin Pan, Ji Qi*, Jiatai He, Heng Zhang, Jiageng Yu, Yanjun Wu, *Corresponding Author

  • (SOSP '21) BIDL: A High-throughput, Low-latency Permissioned Blockchain Framework for Datacenter Networks,
    Ji Qi, Xusheng Chen, Yunpeng Jiang, Jianyu Jiang, Tianxiang Shen, Shixiong Zhao, Sen Wang, Gong Zhang, Li Chen, Man Ho Au, Heming Cui

  • (SIGMOD '24) Hyper: Achieving High-Performance and Memory-Efficient Learned Index Via Hybrid Construction,
    Shunkang Zhang, Ji Qi*, Xin Yao, and ANDRE BRINKMANN, *Co-first author, equal contribution

  • (ATC '22) SOTER: Guarding Black-box Inference for General Neural Networks at the Edge,
    Tianxiang Shen, Ji Qi*, Jianyu Jiang, Xian Wang, Siyuan Wen, Xusheng Chen, Shixiong Zhao, Sen Wang, Li Chen, Xiapu Luo, Fengwei Zhang, Heming Cui, *Co-first author, equal contribution

  • (TCAD '24) D-Linker: Debloating Shared Libraries by Relinking From Object Files,
    Jiatai He, Pengpeng Hou, Jiageng Yu, Ji Qi*, Ying Sun, Lijuan Li, RuiLin Zhao, and Yanjun Wu, *Corresponding Author

  • (Micro '22) CRONUS: Fault-isolated, Secure and High-performance Heterogeneous Computing for Trusted Execution Environments,
    Jianyu Jiang, Ji Qi, Tianxiang Shen, Xusheng Chen, Shixiong Zhao, Sen Wang, Li Chen, Gong Zhang, Xiapu Luo, Heming Cui

  • (TVT '19) Formal Codesign and Implementation for Multifunction Vehicle Bus Circuits,
    Ji Qi, and Kueiming Lo