Ji Zhuoran (纪卓然)

Ji Zhuoran (纪卓然)

Assistant Professor at SDU

About Me

Hi, I am Zhuoran Ji (纪卓然), an Assistant Professor in the School of Cyber Science and Technology at Shandong University.

I build systems that make ambitious computation practical—from operating systems for teams of coding agents to GPU-accelerated frameworks for privacy-preserving computing. My work sits at the intersection of operating systems, computer architecture, compilers, and security. I especially enjoy turning ideas that are powerful but painfully expensive into tools that people can actually use.

Before joining Shandong University, I received my Ph.D. in Computer Science from The University of Hong Kong in 2022, advised by Prof. Cho-Li Wang. I also received my B.S. in Computer Science from HKU in 2018.

WE ARE RECRUITING · 招生

一起把“看起来很难”的系统，做成真的。

目前招收 Agent 操作系统、Agent 文件系统与隐私计算框架方向的硕士研究生，也欢迎各年级本科生参与科研和大型开源项目。你不需要一开始就懂所有技术；好奇心、动手能力和把问题追到底的耐心更重要。

看看我们正在开展的项目 →

Research Interests

  • Systems for AI agents: operating systems, runtimes, file systems, and sandboxes for collaborative coding agents.
  • Privacy-computing systems: GPU frameworks for fully homomorphic encryption and zero-knowledge proofs.
  • High-performance computing: GPU algorithms, compilers, architecture-aware optimization, and multi-GPU systems.

Selected Publications

First-author papers and student-led papers for which I am the corresponding author.

  • Qi Hu, Yifeng Tang, Qinghua Wang, Lanyang Zhao, Pengji Zhang, Yuhao Qing, Xin Yao, Dong Huang, Lin Zhang, Zhuoran Ji*. SABER: Benchmarking Operational Safety of LLM Coding Agents in Stateful Project Workspaces. Conference on Empirical Methods in Natural Language Processing (EMNLP), 2026
  • Kanyu Ye, Haoping Yang, Honghui You, Yusi Chen, Lei Ju, Zhuoran Ji*. PackCNN: Adaptive Data Packing for BSGS-Based Privacy-Preserving Convolutional Neural Network Inference. ACM SIGSAC Conference on Computer and Communications Security (CCS), 2026
  • Zhiyuan Zhang, Yanxin Cai, Wenhao Yin, Xueyu Wu, Yi Wang, Lei Ju, Zhuoran Ji*. Pipelonk: Accelerating End-to-End Zero-Knowledge Proof Generation on GPUs for PLONK-Based Protocols. ACM SIGPLAN Symposium on Principles and Practice of Parallel Programming (PPoPP), 2026
  • Xiangkai Yin, Shuoyu Wang, Zhaorui Zhang, Zimeng Zhou, Lei Ju, Zhuoran Ji*. TensorNTT: Architecture-Aware Optimizations for Number-Theoretic Transform on Tensor Core Unit. IEEE International Conference on Big Data (BigData), 2025
  • Yifeng Tang, Huaman Zhou, Zhuoran Ji*, Cho-Li Wang. Cube-fx: Mapping Taylor Expansion Onto Matrix Multiplier-Accumulators of Huawei Ascend AI Processors. IEEE Transactions on Parallel and Distributed Systems (TPDS), 2025
  • Zhuoran Ji, Jianyu Zhao, Peimin Gao, Xiangkai Yin, Lei Ju. Accelerating Number Theoretic Transform with Multi-GPU Systems for Efficient Zero Knowledge Proof. International Conference on Architectural Support for Programming Languages and Operating Systems (ASPLOS), 2025
  • Zhuoran Ji, Jianyu Zhao, Zhaorui Zhang, Jiming Xu, Shoumeng Yan, Lei Ju. A Compiler-Like Framework for Optimizing Cryptographic Big Integer Multiplication on GPUs. IEEE/ACM International Symposium on Microarchitecture (MICRO), 2024
  • Zhuoran Ji, Zhiyuan Zhang, Jiming Xu, Lei Ju. Accelerating Multi-Scalar Multiplication for Efficient Zero Knowledge Proofs with Multi-GPU Systems. International Conference on Architectural Support for Programming Languages and Operating Systems (ASPLOS), 2024
  • Zhuoran Ji, Zhaorui Zhang, Jiming Xu, Lei Ju. POSTER: Accelerating High-Precision Integer Multiplication used in Cryptosystems with GPUs. ACM SIGPLAN Symposium on Principles and Practice of Parallel Programming (PPoPP), 2024
  • Zhuoran Ji, Cho-Li Wang. Optimizing Aggregate Computation of Graph Neural Networks with a New Style of GPU Programming. International Conference on Parallel Architectures and Compilation Techniques (PACT), 2022
  • Zhuoran Ji, Cho-Li Wang. Efficient Exact K-Nearest Neighbor Graph Construction for Billion-Scale Datasets using GPUs with Tensor Cores. ACM International Conference on Supercomputing (ICS), 2022
  • Zhuoran Ji, Cho-Li Wang. Compiler-Directed Incremental Checkpointing for Low Latency GPU Preemption. IEEE International Parallel and Distributed Processing Symposium (IPDPS), 2022
  • Zhuoran Ji, Cho-Li Wang. Accelerating DBSCAN Algorithm with AI Chips for Large Datasets. International Conference on Parallel Processing (ICPP), 2021
  • Zhuoran Ji, Cho-Li Wang. Collaborative GPU Preemption via Spatial Multitasking for Efficient GPU Sharing. European Conference on Parallel Processing (EuroPar), 2021
  • Zhuoran Ji, Cho-Li Wang. CTXBack: Enabling low latency GPU context switching via context flashback. IEEE International Parallel and Distributed Processing Symposium (IPDPS), 2021
  • Zhuoran Ji. Introduction to Mali GPU Driver gitbook, open access 2019

Honors and Awards

  • 华为青年人才Funding 2025
  • 山东大学未来学者青年计划 2025–2027
  • Hong Kong PhD Fellowship (top 3% among more than 4,000 applications), 2018–2022
  • Research Grants Council Student Research Supporting Funding, 2022
  • Y S and Christabel Lung Postgraduate Scholarship, 2018
  • Institute of Electrical and Electronics Engineers (IEEE) Prize, Hong Kong Section, 2017
  • Rosita King Ho Scholarship, 2017
  • Undergraduate Research Fellowship, 2017
  • The HKU Worldwide Scholarship, 2016
  • Dean’s Honours List, 2015–2018