Intelligent Visualization & Human Computer Interaction


2021.5) Our paper on visualization for history learning is accepted for publication in IEEE TVCG (top-tier, 1저자: 한동윤, MS)

2021.2) Our paper on deep learning models for traffic prediction is accepted for publication in IEEE ICDE 21 (top-tier, 1저자: 이현욱, MS-PhD)

2021.1) Our paper on impulse purchases is accepted for publication in The Web Conference 21 (WWW, top-tier, 1저자: 한윤하, MS)

Sungahn Ko (고성안)

Associate Professor

Graduate School of Artificial Intelligence (AI)

School of Computer Science and Engineering

UNIST (Ulsan National Institute of Science & Technology), Korea

Office: Bldg. 106 401-10, Fax: 052-217-2128



  • Ph.D., Purdue Univ., 2014 (Advisor: Dr. David Ebert)

  • M.S., KAIST, 2008 (Advisor: Dr. Kyu Ho Park)

  • B.E., Korea Univ., 2006

Research areas

Current Research Interests:

  • AI+Visual Analytics

    • Traffic AI & Mobility AI

      • Visual Traffic Analysis and Prediction (IEEE TVCG20 [PDF] [Video] [Talk])

      • Deep Learning Model Research

        • Traffic Speed Prediction Model (ACM CIKM20 [PDF], IEEE ICDE21 [PDF])

        • Neural Memory Networks

        • Taxi Demand Prediction

        • (Personalized) Travel Time Estimation

        • Meta/Lifelong/Few shot Learning

        • Urban Event & Accident Prediction Model

    • Explainable AI (XAI)

  • AI+Visualization

    • Data-driven Journalism

    • Storytelling

      • Visual Animation Design Tool for Storytelling

    • Visualization System Design

      • Visualization System for Learning History (IEEE TVCG21 [PDF])

  • AI+HCI (Computational UI/UX/Design, Data Science, Social/Mobile Computing)

    • Data Science/Social Computing/Mobile Computing

      • Human Behavior Analysis, Change, and Modeling

    • Music Creation with AI

    • Recommender Systems

    • Smart Home & AI-Powered Personalized Home Appliances

    • Video AI

      • Deep Learning for Video Analytics, Editing, and Summarization



MS-Phd: 이현욱, 김주희, 문경환

MS: 최승형, 주혜신, 임홍규

Intern: 김성욱, 오재엽, 김용현

Visiting Scholar:

Minjeong Shin (Australian National University)

Research Programmer:



Engineering Programming (2017 Spr)

Object-oriented programming (2016 Spr, 2017 Fall, 2018 Fall, 2019 Spr)

Information Visualization (2016 Fall, 2019 Fall, 2020 Spr, 2021 Spr), Human-Computer Interaction (2018 Spr, 2021 Spr)

Mobile Computing (2020 Fall)

Visual Analytics (2016 Fall, 2017 Fall), Advanced Human-Computer Interaction (2018 Spr, 2020 Spr), Advanced Information Visualization (2019 Spr)

*Program Committee:

IEEE Pacific Visualization: Program Committee (2020-2022), Visualization Notes Committee (2021, 2019, 2018), Sponsorship chair (2017)

Korea Computer Graphics Society, Executive Director (2021), Program Committee (2016--Present)

*Paper Reviewer:

IEEE VIS 2016-2021 (VIS Short, 2020-2021)

ACM Symposium on User Interface Software and Technology (UIST), 2021

IEEE Transactions on Visualization and Computer Graphics (TVCG), 2021

EG/VGTC Conference on Visualization (EuroVis), 2017, 2020-2021

ACM CHI Conference on Human Factors in Computing Systems (CHI), 2019, 2021, 2022

IEEE Pacific Visualization 2017-2022

Computer Graphics Forum (CGF), 2021

IEEE Transactions on Intelligent Transportation Systems (ITS), 2016, 2019, 2020

ACM Conference on Computer-Supported Cooperative Work and Social Computing (CSCW), 2020, 2021

IEEE Pervasive Computing, 2021

International AAAI Conference on Web and Social Media (ICWSM), 2021

Hawaii International Conference on System Sciences (HICSS), 2018--2021

ACM International Joint Conference on Pervasive and Ubiquitous Computing (UbiComp/IWMUT), 2020

ACM Conference on Tangible, Embedded and Embodied Interaction (TEI), 2020

ACM Designing Interactive Systems (DIS), 2018

IEEE Computer Graphics and Applications (CG&A), 2017

*Community Service

울산시 스마트도시사업협의회 위원 (2021~)



UNIST Address: 401-10, Bldg. 106, UNIST-gil 50, Ulsan 44919, Republic of Korea.

우편번호 44919, 울산광역시 울주군 언양읍 유니스트길 50, 울산과학기술원, 106동 401-10호

Lab.: 106동 404호