Junseo Lee

I am a Ph.D. student in Electrical and Computer Engineering at Seoul National University, where I am advised by Prof. Jaewoong Sim in the Computer Architecture and Systems Lab.

My research focuses on computer architecture, with an emphasis on architectural support for emerging workloads. In particular, I study how to efficiently execute emerging visual computing workloads, such as neural rendering, 3D Gaussian splatting, and ray tracing, through designs ranging from domain-specific accelerators to extensions of the hardware graphics pipeline in GPUs. My work has been published at top-tier computer architecture conferences, such as ISCA, ASPLOS, and HPCA.

I received my B.S. in Electrical and Computer Engineering from Seoul National University in 2022.

Publications

HPCA'27BlendCore: Architectural Support for High-Throughput Programmable Blending

Junseo Lee, Wonjae Jang, Sangyun Jeon, Jaewoong Sim

Proc. of the 33rd International Symposium on High-Performance Computer Architecture (HPCA), Salt Lake City, Utah, March 2027

HPCA'26 GRTX: Efficient Ray Tracing for 3D Gaussian-Based Rendering

Junseo Lee, Sangyun Jeon, Jungi Lee, Junyong Park, Jaewoong Sim

Proc. of the 32nd International Symposium on High-Performance Computer Architecture (HPCA), Sydney, Australia, January 2026

PDF Slides BibTeX

@inproceedings{lee-hpca26,
  author    = {Lee, Junseo and Jeon, Sangyun and Lee, Jungi and Park, Junyong and Sim, Jaewoong},
  title     = {GRTX: Efficient Ray Tracing for 3D Gaussian-Based Rendering},
  year      = {2026},
  booktitle = {Proceedings of the 32nd IEEE International Symposium on High-Performance Computer Architecture (HPCA)}
}

HPCA'25 VR-Pipe: Streamlining Hardware Graphics Pipeline for Volume Rendering

Junseo Lee, Jaisung Kim, Junyong Park, Jaewoong Sim

Proc. of the 31st International Symposium on High-Performance Computer Architecture (HPCA), Las Vegas, NV, March 2025

PDF Slides BibTeX

@inproceedings{lee-hpca25,
  author    = {Lee, Junseo and Kim, Jaisung and Park, Junyong and Sim, Jaewoong},
  title     = {VR-Pipe: Streamlining Hardware Graphics Pipeline for Volume Rendering},
  year      = {2025},
  booktitle = {Proceedings of the 31st IEEE International Symposium on High-Performance Computer Architecture (HPCA)}
}

ASPLOS'24 GSCore: Efficient Radiance Field Rendering via Architectural Support for 3D Gaussian Splatting

Junseo Lee, Seokwon Lee, Jungi Lee, Junyong Park, Jaewoong Sim

Proc. of the 2024 International Conference on Architectural Support for Programming Languages and Operating Systems (ASPLOS), San Diego, CA, April 2024

PDF Lightning Talk Slides Poster BibTeX

@inproceedings{lee-asplos24,
  author    = {Lee, Junseo and Lee, Seokwon and Lee, Jungi and Park, Junyong and Sim, Jaewoong},
  title     = {GSCore: Efficient Radiance Field Rendering via Architectural Support for 3D Gaussian Splatting},
  year      = {2024},
  booktitle = {Proceedings of the 2024 International Conference on Architectural Support for Programming Languages and Operating Systems (ASPLOS)}
}

ISCA-50 NeuRex: A Case for Neural Rendering Acceleration

Junseo Lee, Kwanseok Choi, Jungi Lee, Seokwon Lee, Joonho Whangbo, Jaewoong Sim

Proc. of the 50th International Symposium on Computer Architecture (ISCA), Orlando, FL, June 2023

PDF Lightning Talk Slides BibTeX

@inproceedings{lee-isca23,
  author    = {Lee, Junseo and Choi, Kwanseok and Lee, Jungi and Lee, Seokwon and Whangbo, Joonho and Sim, Jaewoong},
  title     = {NeuRex: A Case for Neural Rendering Acceleration},
  year      = {2023},
  booktitle = {Proceedings of the 50th Annual International Symposium on Computer Architecture (ISCA)}
}

Education

2022 – present: Ph.D. in Electrical and Computer Engineering, Seoul National University
Advisor: Prof. Jaewoong Sim
2018 – 2022: B.S. in Electrical and Computer Engineering, Seoul National University

Teaching

Teaching Assistant, Seoul National University

Fall 2022: ECE 315A: Digital Systems Design and Experiments
Spring 2022: ECE 322: Computer Organization