Ph.D. Student of
Computer Science, KAIST




Research interests

  • Human computer interaction
  • Wearable devices
  • Gaze-based interaction


Projects involved



Conference Paper

  • Sunggeun Ahn and Geehyuk Lee,
    Gaze-Assisted Typing for Smart glasses, UIST 2019
  • Sunbum Kim, Sunggeun Ahn, and Geehyuk Lee,
    DiaQwerty: QWERTY Variants to Better Utilize the Screen Area of a Round or Square Smartwatch, ISS 2018
  • Jingun Jung, Sangyoon Lee, Sunggeun Ahn, and Geehyuk Lee,
    Auto-switching List Search Interface for Touchscreen Smartwatches, mobileHCI 2018
  • Sunggeun Ahn, Seongkook Heo, and Geehyuk Lee,
    Typing on a Smartwatch for Smart Glasses, ISS 2017
  • Jaehyun Han, Sunggeun Ahn, Keunwoo Park, and Geehyuk Lee,
    Designing Multi-Touch Gestures Using the Space around the Smartwatch as Continuous Input Space, ISS 2017

Journal Article

  • Sunggeun Ahn, Jaeyeon Lee, Keunwoo Park and Geehyuk Lee,
    Evaluation of Edge-based Interaction on a Square Smartwatch, International Journal of Human – Computer Studies 109C (2018) pp. 68-78


  • Sunggeun Ahn, Jeongmin Son, Sangyoon Lee and Geehyuk Lee,
    Verge-it: Eye gaze input technique using Modulated Disparity Vergence Eye movement for a Binocular Head-Worn Display, CHI 2020 EA (Late-Breaking Work)
  • Jeongmin Son, Sunggeun Ahn, Sunbum Kim and Geehyuk Lee,
    Improving Two-Thumb Touchpad Typing in Virtual Reality, CHI 2019 EA (Late-Breaking Work)
  • Jaehyun Han, Sunggeun Ahn, and Geehyuk Lee,
    Transture: Continuing a Touch Gesture on a Small Screen into the Air, CHI 2015 EA (Work In Progress)
  • Jaehyun Han, Sunggeun Ahn, and Geehyuk Lee,
    Push-Push: A Two-Point Touchscreen Operation Utilizing the Pressed State and the Hover State, UIST 2014 Adjunct (Poster)

Master’s Thesis

  • FourSides: 스마트워치의 측면 공간을 추가적인 입력 공간으로 활용하는 조작방법, 2016
    FourSides: an interaction technique utilizing the four sides of a smartwatch, 2016


  • NAVER Ph.D. Fellowship, 2019
  • 삼성 엑시노스 소프트웨어 개발자 공모전, 2014, 입상
    Samsung Exynos Young Developer Contest (1,000$ for the award)

Teaching Experience

  • As a Teaching Assistant: Data Structure (CS206), Interactive Computer Graphics (CS482), Algorithms Design and Analysis (CS500), Human-Computer Interaction (CS584)