Hunjun Lee (이헌준) Department of Computer Science Hanyang University 222 Wangsimni-ro, Seongdong-gu, Seoul, South Korea Email: hunjunlee@hanyang.ac.kr [dblp]

I am currently an assistant professor for the Department of Computer Science at Hanyang University.

Before joining Hanyang University, I was a post-doc researcher at Seoul National University.
I worked on designing a scalable computer architecture for brain-computer interfacing.

Before working as a post-doc researcher, I earned my Ph.D degree from Seoul National University under the supervision of Prof. Jangwoo Kim.
During my Ph.D., I focused on designing a brain simulation accelerator and analog-based process-in-memory architecture.
I also earned my BS degree from Seoul National University.

Research Interests

• Computer Architecture
• Brain-Computer Interface
• AI and Neuromorphic Computer Architecture
• Process-in-Memory Architecture

Invited Talks

• Computer Architecture for the Brain in Silico, in Vivo, and in Vitro presented at Samsung Advanced Institute of Technology (SAIT), May 9th, 2024
• An Extreme Energy-Efficient In-Memory DNN Acceleration Using 3D NAND Flash presented at Electronics and Telecommunications Research Institute (ETRI), March 13th, 2023
• Next-Generation Computer Architecture for Brain-Inspired Computing presented at Seoul National University AI Summer Camp, August 3rd, 2022
  Talk Link

Publications

1 denotes co-first authors.
* indicates (co-)correspondence.

• Rearchitecting a Neuromorphic Processor for Spike-Driven Brain-Computer Interfacing
  Hunjun Lee, Yeongwoo Jang, Daye Jung, Seunghyun Song, and Jangwoo Kim
  Proceedings of the 57th IEEE/ACM International Symposium on Microarchitecture (MICRO), Oct. 2024.
  
  BCI Neuromorphic Architecture
  

• 3D-FPIM: An Extreme Energy-Efficient DNN Acceleration System Using 3D NAND Flash-Based In-Situ PIM Unit
  Hunjun Lee¹, Minseop Kim¹, Dongmoon Min, Joonsung Kim, Jongwon Back, Honam Yoo, Jong-Ho Lee, and Jangwoo Kim
  Proceedings of the 55th IEEE/ACM International Symposium on Microarchitecture (MICRO), Oct. 2022.
  Paper Code
  PIM Deep Learning Architecture
  

• NeuroSync: A Scalable and Accurate Brain Simulation System Using Safe and Efficient Speculation
  Hunjun Lee¹, Chanmyeong Kim¹, Minseop Kim, Yujin Chung, and Jangwoo Kim
  Proceedings of the 28th IEEE International Symposium on High-Performance Computer Architecture (HPCA), Apr. 2022.
  Paper Short Talk Link Long Talk Link Code
  Neuromorphic Architecture
  

• UC-Check: Characterizing Micro-operation Caches in x86 Processors and Implications in Security and Performance
  Joonsung Kim, Hamin Jang, Hunjun Lee, Seungho Lee, and Jangwoo Kim
  Proceedings of the 54th IEEE/ACM International Symposium on Microarchitecture (MICRO), Oct. 2021.
  Paper Code
  Security Architecture
  

• An Accurate and Fair Evaluation Methodology for SNN-Based Inferencing with Full-Stack Hardware Design Space Explorations
  Hunjun Lee, Chanmyeong Kim, Seungho Lee, Eunjin Baek, and Jangwoo Kim
  Neurocomputing, Sep 2021.
  Paper
  Neuromorphic Deep Learning Architecture
  

• NeuroEngine: A Hardware-based Event-driven Simulation System for Advanced Brain-inspired Computing
  Hunjun Lee¹, Chanmyeong Kim¹, Yujin Chung, and Jangwoo Kim
  Proceedings of the 26th ACM International Conference on Architectural Support for Programming Languages and Operating Systems (ASPLOS), Apr 2021.
  Paper Short Talk Link Long Talk Link
  Neuromorphic Architecture
  

• FlexLearn: Fast and Highly Efficient Brain Simulations Using Flexible On-Chip Learning
  Eunjin Baek¹, Hunjun Lee¹, Youngsok Kim, and Jangwoo Kim
  Proceedings of the 52nd ACM/IEEE International Symposium on Microarchitecture (MICRO), Oct 2019.
  Paper Short Talk Link
  Neuromorphic Architecture
  

Education

• Ph.D., Electrical and Computer Engineering, Seoul National University
  • Mar. 2018 – Aug. 2023
• B.S., Electrical and Computer Engineering, Seoul National University
  • Mar. 2014 – Feb. 2018

Academic Services

Journal Review

• 2024: IEEE TC, ACM TACO, IEEE CAL
• 2023: IEEE TC, ACM TACO, IEEE CAL
• 2022: Parallel Computing

Honors and Awards

• Global Ph.D. Fellowship (글로벌 박사 펠로우십)
  • National Research Foundation of Korea (NRF)
  • Mar. 2019 – Aug. 2023

Teaching Experience

• Teaching Assistant
  • SNU, ECE201: Digital Logic Design and Lab (Fall 2018, Fall 2019)
  • SNU, ECE322: Computer Organization (Spring 2018, Spring 2019)