Jinwoo Choi Google Scholar | Linkedin | CV

Introduce

I am a Post. Doc. Researcher in Centor for AI on Korea Institute of Science and Technology (KIST) .
I recieved my Ph.D. and BSe in the Department of Computer Science and Engineering at Yonsei University under the supervision of Prof. Youngsok Kim.

• Email: jinwoo1029@yonsei.ac.kr
  

Research Interests

• Architecture and system optimizations for neural networks
• Computer architecture, system software, and hardware acceleration
• On-device machine learning on mobile/embedded devices
• NPU architecture & performance analysis/modeling

Publications

1. DMO-DB: Mitigating the Data Movement Bottlenecks of GPU-Accelerated Relational OLAP
   Chaemin Lim, Suhyun Lee, Jinwoo Choi, Joonsung Kim, Jinho Lee, and Youngsok Kim
   34th International Conference on Parallel Architectures and Compilation Techniques (PACT), Nov. 2025 (to appear)
   System SW GPU Database


2. SPID-Join: A Skew-resistant Processing-in-DIMM Join Algorithm Exploiting the Bank- and Rank-level Parallelisms of DIMMs
   Suhyun Lee, Chaemin Lim, Jinwoo Choi, Heelim Choi, Chan Lee, Yongjun Park, Kwanghyun Park, Hanjun Kim, and Youngsok Kim
   2025 ACM International Conference on Management of Data (SIGMOD), June 2025
   System SW PIM Database


3. MPC-Wrapper: Fully Harnessing the Potential of Samsung Aquabolt-XL HBM2-PIM on FPGAs
   Jinwoo Choi¹, Yeonan Ha¹, Hanna Cha, Seil Lee, Sungchul Lee, Jounghoo Lee, Shin-haeng Kang, Bongjun Kim, Hanwoong Jung, Hanjun Kim and Youngsok Kim
   32nd IEEE International Symposium On Field-Programmable Custom Computing Machines (FCCM), May. 2024
   ¹Co-first authors
   Architecture FPGA PIM


4. Enabling Fine-Grained Spatial Multitasking on Systolic-Array NPUs Using Dataflow Mirroring
   Jinwoo Choi, Yeonan Ha, Jounghoo Lee, Sangsu Lee, Jinho Lee, Hanhwi Jang, and Youngsok Kim
   IEEE Transactions on Computers (TC), Aug. 2023
   Architecture AI Modeling


5. Design and Analysis of a Processing-in-DIMM Join Algorithm: A Case Study with UPMEM DIMMs
   Chaemin Lim, Suhyun Lee, Jinwoo Choi, Jounghoo Lee, Seongyeon Park, Hanjun Kim, Jinho Lee, and Youngsok Kim
   2023 ACM SIGMOD International Conference on Management of Data (SIGMOD), June 2023
   System SW PIM Database


6. GuardiaNN: Fast and Secure On-Device Inference in TrustZone Using Embedded SRAM and Cryptographic Hardware
   Jinwoo Choi¹, Jaeyeon Kim¹, Chaemin Lim¹, Suhyun Lee, Jinho Lee, Dokyung Song, and Youngsok Kim
   23rd ACM/IFIP International Middleware Conference (Middleware), Nov. 2022
   ¹Co-first authors
   System SW Mobile Security AI


7. Dataflow Mirroring: Architectural Support for Highly Efficient Fine-Grained Spatial Multitasking on Systolic-Array NPUs
   Jounghoo Lee¹, Jinwoo Choi¹, Jaeyeon Kim, Jinho Lee, and Youngsok Kim
   58th ACM/IEEE Design Automation Conference (DAC), Dec. 2021
   ¹Co-first authors
   Architecture AI

Patent

• Artificial Intelligence Device Based on Trust Environment (JP Patent App. 2023-129058)
  Youngsok Kim, Jinwoo Choi, Chaemin Lim, Suhyun Lee, Dokyung Song, Jinho Lee

Awards

• July 2023. 2023-2학기 대학원 혁신 우수논문 Award (최우수상 from College of Computing)
• May 2022. A recipient of NRF 박사과정생 연구장려금지원 program.

Projects

• Exploring Quality-Aware NN Scheduler, LG Electronics
• Designing a PIM-Based NPU Architecture and FPGA Prototyping, Samsung Advanced Institute of Technology (SAIT)
• Sparsity-Aware Spatial Multitasking NPU Architecture and Scheduling, National Research Foundation of Korea (NRF)
• Developing Software Platform for Programming of PIM, Institute for Information & communcations Technology Promotion (IITP)
• Smart, Attack-resistant IoT Networks, Korea Institute for Advancement of Technology (KIAT)
• Spatial Multitasking on Systolic Array Neural Processing Units, Samsung Advanced Institute of Technology (SAIT)

Teaching

• Computer Architecture (2021S, 2020S)
• Compiler Design (2020F)
• Opensource Project (2021F)
• Software Capstone Design (2022S)
• Discrete Mathmatics (2022F)