2023. 9) I give an invited talk (10/21) on digital mental healthcare data collection, analysis, and prediction, invited by Korean Neuropsychiatric association (대한신경정신의학회)

2023.8) I serve on Technical Program Committee of PacificVis 2024 (https://pacificvis.github.io/pvis2024/), which will be held 4/23~4/26, 2024, Tokyo, Japan

2023.7) I give an invited talk (7/18) on spatio-temporal data analysis and forecasting with AI, invited by the Data Institute for Societal Challenges at University of Oklahoma. 

2023.6) I serve on Program Committee of Asia-Pacific Software Engineering Conference (APSEC) 2023, Early Research Achievements Track (https://conf.researchr.org/home/apsec-2023)

2023.5) I give an invited talk (6/13) on Human-AI Teaming with Visual Interfaces, invited by ETRI.

2023.5) Congratulations! Our paper on visualization thumbnail design is accepted for publication in IEEE TVCG (first author: Hwiyeon Kim [MS student]). She will present the work at IEEE VIS 23 (Melbourne, Australia). 

2023.4) I give an invited talk (7/8) on visual mental healthcare interface and interventions with AI, invited by Seoul Asan Medical Center.

2023.3) We are recruiting interns who participate KDD AI Competition (Sponsored by Amazon) as a team. The competition task is to build multilingual recommendation systems (https://www.aicrowd.com/challenges/amazon-kdd-cup-23-multilingual-recommendation-challenge)

2023.2) I  give an invited talk (4/18) at the Pacific Vis Workshop "Visualization Meets AI 2023" (https://vismeetsai.github.io/).

2023.2) I serve on Technical Program Committees of IEEE VIS 22 and VIS 22 Short.

2023.2) I serve as Associate Chair of a CHI'23 workshop--"Future of Computational Approaches for Understanding & Adapting User Interfaces" (workshop web page: https://sites.google.com/nd.edu/computational-uichi23/home)

2023. 1) I visit the University of Texas at Dallas for a talk and research collaboration on VIS+AI+VR (1/26~1/27) hosted by Prof. Jin Ryong Kim.

2023.1) 임홍규 (M.S.)  현대차 R&D 연구소 입사 축하합니다!

2022.12) Congratulations! Hyunwook Lee is awarded the NAVER Ph.D. fellowship.  

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

Work

• Visiting Professor, UC Davis, CA, USA (2022.3~2023.2), hosted by Prof. Kwan-Liu Ma (Computer Science)

• Associate Professor, UNIST, Computer Science and Engineering, 2020~

• Assistant Professor, UNIST, Electrical & Computer Engineering,  2016~2020

• Software Engineer, VinSense (http://www.vinsense.net),  2015

• Post-doc researcher, Purdue VACCINE (http://www.purdue.edu/discoverypark/vaccine/), 2015

Education

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

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

•  B.E., Korea Univ., 2006

Current Research Interests:

• Deep Learning 

  • Spatial-temporal Data Learning

    • • Traffic Speed Prediction Models  (IEEE ICDE 21 [PDF])

      • Attention Models  (ACM CIKM 20 [PDF])

      • Neural Memory Networks (ICLR 22 [PDF] )

  • Time-series Data Learning

    • Loss function design for time-series forecasting 

  • (Large) Language Models 

    • Argument Classification and Learning

    • Question-Answering Systems, Knowledge Graphs

  • Multi-Modal Data Learning

    • Text/Image/Video Scene Understanding/Generation

  • Finance AI

• AI+Visual Analytics/Visualization

  • AI+Visualization System Design

    • Visual Analysis of Attention Models (IEEE VIS 22 [PDF])

    • Visualization System for Learning History (IEEE TVCG 21 [PDF])

    • Visual Traffic Analysis and Prediction (IEEE TVCG 20  [PDF] [Video] [Talk])

  • AI+Data-driven Storytelling

    • Visualization Thumbnail Design for News Articles (IEEE VIS 19 [PDF][Preview][Talk], TVCG 23 [PDF] [VIS 23 Slides] )

    • AI-driven Storytelling Visualization (IEEE TVCG 22 [PDF])

  • AI+Social Network Data Mining

    • Fake News/Misinformation/Disinformation

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

• • Human-AI Interaction

    • Mobile GUI Design: ACM CHI 20 [PDF] [Preview] [Talk]

    • AI Music Generation: ACM CIKM 22 [PDF] [Talk] 

    • Metaverse + Virtual Reality (VR/MR) + NLP + Interaction

• • Human Behavior Analysis, Change, and Modeling

    • Impulse Purchase Prevention UI Design: WWW 21[PDF] [Slides] 

Lab.: https://ivaderlab.unist.ac.kr/

Graduate Students:

Hyunwook Lee (MS-Phd program Since 2020, lab internship: 2019), Publications:  IEEE VIS 22 (1st), ICLR 22 (1st), CIKM 22,  ICDE 21 (1st, short), WWW 21

Joohee Kim (MS-Phd program Since 2021, lab internship: 2020), Publications: IEEE TVCG 23, TVCG 22, CIKM 22, WWW 21

Sungwook Kim (MS program Since 2023, lab internship: 2021~2022), Publications: CIKM 22

Current Intern Members: 

Ju Won Kim (2024 MS-Phd 진학 예정), Hyotaek Jeon (2024 MS-Phd 진학 예정), Jian Park (2024 MS-Phd 진학 예정) 

이민식 (2024 MS 진학 예정, UNIST-LG 전자 장학생), Duc Minh Nguyen (2024 MS 진학 예정)

Postdoc

Dr. Seungmin Jin

Graduate Alumni

2023 임홍규 (MS, first job at Hyundai Motors R&D Center)

2022 최승형 (MS, first job at Hyundai Mobis), 주혜신 (MS, first job at Naver ZEPETO)

2021 한윤하 (MS, first job at NC Soft), 김휘연 (MS, first job at 경남은행)

2020 이충기 (MS, now PhD program at Harvard CS), 김기환 (MS, first job at 티맥스연구소, 석사병특), 한동윤 (MS, now PhD program at USU), Gorahk Parsad (MS)

2019 오주영 (MS, first job at Hyundai Motors R&D Center) 

2018  Kuatbek Mukabak (MS, first job at Sapa Software)

Past Undergraduate Interns

2021~2022 김성욱 (Major: CSE, 2023 HAIV MS 진학)

2020 김주희 (Major: CSE, 2021 HAIV MS-PhD 진학)

2019 이현욱 (Major: ECE, 2020 HAIV MS-PhD 진학)

2018 김휘연 (Major: Design, 2019 HAIV MS 진학)

2017 김기환 (Major: ECE, 2018 HAIV MS 진학)

2016 이충기 (Major: ECE, 2018 HAIV MS 진학), 오주영 (Major: ECE, 2017 HAIV MS 진학)

*Technical Program Committee:

IEEE VIS (2022, 2023), VIS Short (2022, 2023)

IEEE Pacific Visualization (2020-2024), Visualization Notes Notes Co-chair (2023), Visualization Notes Committee (2018-2022), Sponsorship chair (2017) 

CHI Workshop on Computational UI Designs (2022-2023) 

Asia-Pacific Software Engineering Conference (2023)

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

*Paper Reviewer: 

IEEE VIS  2016-2023, IEEE VIS Short 2020-2023 

IEEE Pacific Visualization 2017-2024

ACM CHI Conference on Human Factors in Computing Systems (CHI), 2019, 2021-2024

IEEE VR 2024

IEEE Transactions on Visualization and Computer Graphics (TVCG), 2021, 2023

EG/VGTC Conference on Visualization (EuroVis), 2017, 2020-2022

Computer Graphics Forum (CGF), 2021, 2022

Journal of Information Visualization (JVIS), 2022

ACM International Joint Conference on Pervasive and Ubiquitous Computing (UbiComp/IWMUT), 2020~2023

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

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

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

International AAAI Conference on Web and Social Media (ICWSM), 2021, 2023

IEEE Pervasive Computing, 2021

Hawaii International Conference on System Sciences (HICSS), 2020--2023

ACM Conference on Tangible, Embedded and Embodied Interaction (TEI), 2021

ACM Designing Interactive Systems (DIS), 2018

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

Korean Institute of Information Scientists and Engineers (KIISE), 2021-2022

*Courses

Engineering Programming (2017 Spr)

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

Information Visualization (2016 Fall, 2019 Fall, 2020, 2021, 2023 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, 2021, 2023 Fall)

*Community Service

Ulsan City Advisory Council Member 울산광역시 정책 자문 위원회 자문 위원 (2023~)

Ulsan Smart City Project Committee Member  울산시 스마트 도시 사업 협의회 자문 위원 (2021~)

*Links

UNIST CSE: http://cse.unist.ac.kr/

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