Profile

Last updated: April. 13, 2026

Interests

  • Hardware Acceleration(GPU, AMD AI Engine)
  • Cryptography(Homomorphic Encryption)
  • Systems Software(unikernel, WebAssembly, MLIR)

Publications

International Conferences

  1. Ai Nozaki, Takuya Kojima, Hiroshi Nakamura, Hideki Takase, “Dataflow-Oriented Classification and Performance Analysis of GPU-Accelerated Homomorphic Encryption”, The 50th IEEE International Conference on Computers, Software, and Applications (COMPSAC 2026), Madrid, Spain, July 2026.
  2. Ai Nozaki, Takuya Kojima, Hiroshi Nakamura, Hideki Takase, “An Acceleration of Homomorphic Encryption for GPUs focusing on Polynomial-graph” (Poster), Symposium on Low-Power and High-Speed Chips and Systems (COOL Chips 28), Tokyo, Japan, April, 2025 (Featured Poster Award)
  3. Ai Nozaki, Takuya Kojima, Hiroshi Nakamura, Hideki Takase, “A Study on Number Theoretic Transform Acceleration on AMD AI Engine”, 16th International Symposium on Embedded Multicore/Many-core Systems-on-Chip (MCSoC), Kuala Lumpur, Malaysia, December, 2024, doi: 10.1109/MCSoC64144.2024.00060.
  4. Soichiro Ueda, Ai Nozaki, Daisuke Kotani, Yasuo Okabe, “Mewz: Lightweight Execution Environment for WebAssembly with High Isolation and Portability using Unikernels”, The 2nd Workshop on Hot Topics in System Infrastructure (HotInfra), Austin, USA, November, 2024, https://arxiv.org/html/2411.01129v1.
  5. Ai Nozaki, Takuya Kojima, Hiroshi Nakamura, Hideki Takase, “MLIR-based Homomorphic Encryption Compiler for GPUs”, International Symposium on Highly-Efficient Accelerators and Reconfigurable Technologies (HEART), Porto, Portugal, June, 2024, doi: 10.1145/3665283.3665343.

Japanese Domestic Conferences

  1. Ai Nozaki, Takuya Kojima, Hiroshi Nakamura, Hideki Takase, “Dataflow-Oriented Classification and Performance Analysis of GPU-Accelerated Homomorphic Encryption”, ETNET2026, Kagawa, Mar.2026.
  2. Haruto Katakura, Ai Nozaki, Takuya Kojima, Hiroshi Nakamura, Hideki Takase, “Accelerating Client-Side Operations of Homomorphic Encryption on AMD AI Engine”, ETNET2026, Kagawa, Mar.2026.
  3. Soichi Ueda, Ai Nozaki, Daisuke Kotani, Toshio Okabe, “Transparent Orchestration of Heterogeneous IoT Devices with Kubernetes-based Peripheral Abstraction using WebAssembly”, The 170th Symposium on System Software and Operating Systems, Kyoto, Feb.2026.
  4. Ai Nozaki, Takuya Kojima, Hiroshi Nakamura, Hideki Takase, “Homomorphic Encryption Compiler for GPUs for Enhancing Data Reuse focusing on Polynomial Operation Graphs”, ETNET2025, Kagoshima, Mar.2025.
  5. Motoharu Tsuboi, Ai Nozaki, Takuya Kojima, Hiroshi Nakamura, Hideki Takase, “Accelerating Number Theoretic Transform on AMD AI Engine focusing on Twiddle Factor”, ETNET2025, Kagoshima, Mar.2025.
  6. Ai Nozaki, Takuya Kojima, Hiroshi Nakamura, Hideki Takase, “Exploring AMD AI Engine for Accelerating Number Theoretic Transform”, SWoPP2024, Tokushima, Aug.2024. (IPSJ SIGARC Young Researcher Award)
  7. Soichiro Ueda, Ai Nozaki, Daisuke Kotani, Toshio Okabe, “Lightweight Execution Environment for WebAssembly with High Isolation and Portability using Unikernels”, SWoPP2024, Tokushima, Aug.2024. (IPSJ SIGOS Young Researcher Award)
  8. Marin Matsumoto, Ai Nozaki, Arisa Tsuji, Hideki Takase, Masato Oguchi, “Improving Client-Side Operations in Fully Homomorphic Encryption over the Torus with Single Board Computers”, SWoPP2024, Tokushima, Aug.2024.
  9. Ai Nozaki, Takuya Kojima, Hiroshi Nakamura, Hideki Takase, “A Homomorphic Encryption Compiler for GPUs using MLIR”, ETNET2024, Nagasaki, Mar.2024. (IPSJ SIGARC Young Researcher Award, IPSJ Computer Science Research Award for Young)
  10. Hiroto Imachi, Ai Nozaki, “Implementation and evaluation of BLAS on MN-Core accelerator”, Technical Report (HPC), Okinawa, Dec.2023.

Awards

  1. AIP Challenge Lab Director’s Award, Mar.2026 (link)
  2. Featured Poster Award, COOL Chips 28, April, 2025
  3. IPSJ SIGARC Young Researcher Award, August, 2024 (link)
  4. IPSJ SIGARC Young Researcher Award, March, 2024 (link)
  5. IPSJ Computer Science Research Award for Young, March, 2024 (link)

Activities

  1. Instructor at the IPA Security Camp, NPU programming Lab, Aug.2026 (link)
  2. IPA MITOU Advanced program, “Wasm-Focused Cloud Service”, 2026 (link)
  3. Instructor at the IPA Security Camp, WebAsembly Lab, Aug.2024 (link)
  4. Keynote at CloudNative Days Summer, “Next-Generation Cloud Infrastructure: The Present and Future of Wasm”, Jul.2024 (slide(Japanese))
  5. IPA MITOU program, “Unikernel degisned for Wasm and Wasm Compiler”, 2023 (link)
  6. Talk at Association of Young Scientists in Information Science, “Unikernel degisned for Wasm and Wasm Compiler”, Sep.2023 (slide)
  7. Internship at Prefered Network: “Implementation and evaluation of BLAS on MN-Core accelerato”, Aug.2023 (Blog(Japanese))
  8. Cybozu Lab Youth program, Developping AArch64 emulator, 2022 (GitHub)
  9. NICT SecHack365 program, Developping XDP-based packet analyzing tool, 2021 (Poster)
  10. Internship at Google Chrome, 2020年
  11. IPA Security Camp, 2020年

Softwares

  1. Mewz: Unikernel for WebAssembly GitHub, CloudNative Computing Foundation landscape
  2. Wasker: AoT compiler for WebAssembly GitHub
  3. AArch64 Emulator (Experimental) GitHub
  4. XDP-based tool (Experimental) GitHub