JangHyeon Lee

JangHyeon Lee

Ph.D. student @UMN

About

I am a Ph.D. student in Computer Science at University of Minnesota (UMN), advised by Prof. Yao-Yi Chiang.

My research interests lie in machine learning (ML), with a focus on the spatiotemporal domain (space and time). I am particularly interested in developing ML models that can perform effectively even with sparse and unevenly distributed data.

Prior to this, I received my MS and BS in Computing Science from Simon Fraser University (SFU), and a BS in Materials Science & Engineering from Korea University. I also did an internship at KAIST, which ignited my journey in AI.

I’m always open to collaboration and discussion—feel free to reach out!

Curriculum Vitae (updated Jan. 2025)

🎉 News

  • 2025.01: Our paper, DiminishAR: Diminishing Visual Distractions via Holographic AR Displays, was accepted to CHI 2025! See you in Yokohama 🌸
  • 2025.01: I am fortunate to receive the CSE Data Science Initiative (DSI) Fellowship. We will be taking Spatial AI to the Sun! 🌞
 Click to expand (2024)
  • 2024.10: I made it into the top 10 teams of the HuMob’24 competition out of 100+ participating teams! See you in Atlanta :)
  • 2024.09: Our paper, Context-Aware Trajectory Anomaly Detection, was accepted to GeoAnomalies’24!
  • 2024.08: I officially started my Ph.D. journey at UMN.
  • 2024.03: I won the SFU CS Diversity Award for mitigating group identity bias in distilled language models via a dual-teacher approach, all in just one epoch!
 Click to expand (2023)
  • 2023.12: I completed my master’s degree in CS at SFU.
  • 2023.06: I won the SFU CS Innovation Prize for tackling data scarcity in medicine and agriculture, boosting data-hungry models with conditional diffusion-generated data!

✒️ Publications (Selected)

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DiminishAR: Diminishing Visual Distractions via Holographic AR Displays

JangHyeon Lee, Lawrence Kim

ACM CHI 2025
[Acceptance rate = 25% (1249/5020)]

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CrossBag: A Bag of Tricks for Cross-City Mobility Prediction

JangHyeon Lee, Yao-Yi Chiang

ACM SIGSPATIAL HuMob 2024
[Top 10 out of 100+ teams]

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Context-Aware Trajectory Anomaly Detection

Haoji Hu, Jina Kim, Jinwei Zhou, Sofia Kirsanova, JangHyeon Lee, Yao-Yi Chiang

ACM SIGSPATIAL GeoAnomalies 2024

🎋 Miscellanea

“Your success in life will be determined largely by your ability to speak, your ability to write, and the quality of your ideas, in that order.”
– Patrick Winston