Assistant Professor

DGIST, Daegu, Korea, 2020 Feb. - now

Postdoctoral Researcher

User Interfaces Group, Aalto University, Helsinki, Finland, 2017 May. - 2020 Jan.

Professor: Antti Oulasvirta

Postdoctoral Researcher

Interactive Media Lab, KAIST, Daejeon, Korea, 2017 Mar. - 2017 May.

Professor: Byungjoo Lee

Ph.D., Computer Science

HCI Lab, KAIST, Daejeon, Korea, 2011 Mar. - 2017 Feb.

Supervisor: Professor Geehyuk Lee

M.S., Computer Science

U&I Lab, KAIST, Daejeon, Korea, 2009 Mar. - 2011. Feb.

Supervisor: Professor Alice Oh

B.S., Computer Science,
Minor in Industrial Design

KAIST, Daejeon, Korea, 2004 Mar. - 2009. Feb.

Supervisor: Professor Jong C. Park, Professor Junehwa Song

• Human-Computer Interaction
• Interaction Design
• Human Perception
• Text Entry System
• Pointing Technique
• Touch Interface
• Physical Computing
• Rapid Prototyping

Do We Need a Faster Mouse? Empirical Evaluation of Asynchronicity-Induced Jiter

Auejin Ham, Junsu Lim, Sunjun Kim
Full paper (11p), In Proc. UIST 2021, ACM

[Preprint]

How We Swipe: A Large-scale Shape-writing Dataset and Empirical Findings

Luis A. Leiva, Sunjun Kim, Wenzhe Cui, Xiaojun Bi, Antti Oulasvirta
Full paper (13p), In Proc. MobileCHI 2021, ACM

[PDF] [ACM DL] [Dataset] [Code]

Secrets of Gosu: Understanding Physical Combat Skills of Professional Players in First-Person Shooters

Eunji Park, Sangyoon Lee, Auejin Ham, Minyeop Choi, Sunjun Kim, Byungjoo Lee
Full paper (13p), In Proc. CHI 2021, ACM (Honorable Mention - top 5%)

[ACM DL] [Video] [Presentation]

Optimal Sensor Position for a Computer Mouse

Sunjun Kim, Byungjoo Lee, Thomas van Gemert, and Antti Oulasvirta
Full paper (13p), In Proc. CHI 2020, ACM

[PDF] [ACM DL] [Video] [Presentation]

Button Simulation and Design via FDVV Models

Yi-Chi Liao, Sunjun Kim, Byungjoo Lee, and Antti Oulasvirta
Full paper (13p), In Proc. CHI 2020, ACM

[PDF] [ACM DL] [Video] [Presentation]

AutoGain: Gain Function Adaptation with Submovement Efficiency Optimization

Byungjoo Lee, Mathieu Nancel, Sunjun Kim, and Antti Oulasvirta
Full paper (12p), In Proc. CHI 2020, ACM

[PDF] [ACM DL]

Swap: A Replacement-based Text Revision Technique for Mobile Devices

Yang Li, Sayan Sarcar, Sunjun Kim, and Xiangshi Ren
Full paper (12p), In Proc. CHI 2020, ACM

[PDF] [ACM DL] [Video] [Presentation]

How do people type on mobile devices? Observations from a study with 37,000 volunteers

Kseniia Palin, Anna Maria Feit, Sunjun Kim, Per Ola Kristensson, and Antti Oulasvirta
Full paper (12p), In Proc. MobileCHI 2019, ACM (Honorable Mention - top 5%)

[PDF] [ACM DL]

Geometrically Compensating Effect of End-to-End Latency in Moving-Target Selection Games

Injung Lee, Sunjun Kim, and Byungjoo Lee
Full paper (12p), In Proc. CHI 2019, ACM

[PDF] [ACM DL]

Design and Evaluation of Semi-Transparent Keyboards on a Touchscreen Tablet

Sunjun Kim, and Geehyuk Lee
Full paper (12p), In Proc. ISS 2018, ACM (Best Application Paper Award, Top 2 papers)

[PDF] [ACM DL]

Impact Activation Improves Rapid Button Pressing

Sunjun Kim, Byungjoo Lee, and Antti Oulasvirta
Full paper (8p), In Proc. CHI 2018, ACM

[PDF] [ACM DL] [PRESENTATION] [VIDEO PREVIEW] [PROJECT PAGE]

Neuromechanics of a Button Press

Antti Oulasvirta, Sunjun Kim, and Byungjoo Lee
Full paper (10p), In Proc. CHI 2018, ACM (Honorable Mention - top 5%)

[PDF] [ACM DL] [PRESENTATION] [VIDEO] [PROJECT PAGE]

Moving Target Selection: A Cue Integration Model

Byungjoo Lee, Sunjun Kim, Antti Oulasvirta, Jong-In Lee, and Eunji Park
Full paper (10p), In Proc. CHI 2018, ACM

[ACM DL]

Reflector: Distance-Independent, Private Pointing on a Reflective Screen

Jong-in Lee^†, Sunjun Kim^†, Masaaki Fukumoto, and Byungjoo Lee
Full paper (10p), In Proc. UIST 2017, ACM (†: equal contributions)

[PDF] [ACM DL]

Usability of Different Types of Commercial Selfie Sticks

Ahmed Arif, Sunjun Kim and Geehyuk Lee
Full paper (10p), In Proc. MobileHCI 2017, ACM

[PDF] [PRESENTATION] [SURVEY DATA] [ACM DL]

TapBoard 2: Simple and Effective Touchpad-like Interaction on a Multi-Touch Surface Keyboard

Sunjun Kim and Geehyuk Lee
Note (4p), In Proc. CHI 2016, ACM

[PDF] [VIDEO] [PRESENTATION@CHI2016] [ACM DL]

Evaluation of a Smart-Restorable Backspace Technique to Facilitate Text Entry Error Correction

Ahmed Arif, Sunjun Kim, Wolfgang Stuerzlinger, Geehyuk Lee, Ali Mazalek
Full paper (10p), In Proc. CHI 2016, ACM

[PDF] [VIDEO] [ACM DL]

Haptic Feedback Design for a Virtual Button Along Force-Displacement Curves

Sunjun Kim and Geehyuk Lee
Short paper (6p), In Proc. UIST 2013, ACM

[PDF] [PRESENTATION] [VIDEO] [ACM DL]

TapBoard: Making a Touch Screen Keyboard More Touchable

Sunjun Kim, Jeongmin Son, Geehyuk Lee, Hwan Kim, and Woohun Lee
Full paper (10p), In Proc. CHI 2013, ACM (Honorable Mention - top 5%)

[PDF] [PRESENTATION] [VIDEO] [VIDEO (Short)] [ACM DL]

LongPad: A TouchPad Using the Whole Area below the Keyboard on a Laptop

Jiseong Gu, SeongKook Heo, Jaehyun Han, Sunjun Kim, and Geehyuk Lee
Full paper (10p), In Proc. CHI 2013, ACM

[PDF] [VIDEO] [VIDEO (Short)] [ACM DL]

Interaction Techniques for Unreachable Objects on the Touchscreen

Sunjun Kim, Ji-Hyun Yu, and Geehyuk Lee
Short paper (4p), In Proc. OzCHI 2012, ACM

[PDF] [VIDEO] [ACM DL]

Typing on a Touch Surface: Effect of Feedback with Horizontal Touch Keyboard and Vertical Display Setup

Sunjun Kim and Geehyuk Lee
Short Paper (6p), In Proc. APCHI 2012, ACM

[PDF] [PRESENTATION] [VIDEO] [BibTeX citation]

Offline Book Recommendation System using User Location Information

Sunjun Kim, Alice H. Oh
Abstract (2p), In Proc. HCI Korea 2012

[PDF] [DBpia]

A Rapid Prototyping Method for Discovering User-Driven Opportunities for Personal Informatics (A Case Study in a Domestic Environment)

Wonjun Lee, Sunjun Kim, Youn-kyung Lim, Alice Oh, Tek-jin Nam, and Kee-Eung Kim
Full paper (10p), In Proc. VSMM 2010, IEEE (Best Paper Award)

[PDF] [IEEE]

Investigating Visual and Interaction Designs of a Semi-Transparent Keyboard for a Touch Screen Tablet Computer

Sunjun Kim

Ph.D. Dissertation, 2017 [PDF]

Tracking User Behavior and Recommending Books in Offline Bookstore

Sunjun Kim

Master Thesis, 2011 [PDF]

Esports and High Performance HCI

Benjamin Watson, Josef Spjut, Joohwan Kim, Jennifer Listman, Sunjun Kim, Raphael Wimmer, David Putrino, Byungjoo Lee
Workshop, In Adj. Proc. CHI 2021, ACM

[ACM DL]

Press' Em: Simulating Varying Button Tactility via FDVV Models

Yi-Chi Liao, Sunjun Kim, Byungjoo Lee, Antti Oulasvirta
Demo, In Adj. Proc. CHI 2020, ACM

[ACM DL]

Surface Haptics

Sunjun Kim, Gunhyuk Park, Seung Chan Kim, and Jingun Jung
Tutorial, In Proc. ISS 2019, ACM

[ACM DL]

One Button to Rule Them All: Rendering Arbitrary Force-Displacement Curves

Yi-Chi Liao, Sunjun Kim and Antti Oulasvirta
Poster, In Adj. Proc. UIST 2018, ACM

[PDF] [ACM DL]

A Smart-Restorable Backspace to Facilitate Text Entry Error Correction

Ahmed S. Arif, Wolfgang Stuerzlinger, Ali Mazalek, Sunjun Kim and Geehyuk Lee
Workshop - W14 Text Entry on the Edge, accompanied to CHI 2015, ACM

[PDF] [Workshop Page]

Restorable Backspace

Sunjun Kim and Geehyuk Lee
Poster, In Adj. Proc. UIST 2012, ACM

[PDF] [POSTER] [VIDEO] [ACM DL]

ThickPad: a Hover-tracking Touchpad for a Laptop

Sangwon Choi, Jaehyun Han, Sunjun Kim, Seongkook Heo, and Geehyuk Lee
Demonstration, In Adj. Proc. UIST 2011, ACM
Demo hour, Interactions Vol. 20, Issue 1 (Jan+Feb 2013)

[PDF] [ACM DL] [Interactions]

iLight: Information flashLight on Objects Using Handheld Projector

Sunjun Kim, Jaewoo Chung, Alice Oh, Chris Schmandt, and Ig-Jae Kim
Poster, In Proc. CHI EA 2010, ACM

[PDF] [ACM DL]

2021, CHI Honorable Mention (Top 5%)

Eunji Park, Sangyoon Lee, Auejin Ham, Minyeop Choi, Sunjun Kim, Byungjoo Lee

Secrets of Gosu: Understanding Physical Combat Skills of Professional Players in First-Person Shooters

2019, MobileHCI Honorable Mention (Top 5%)

Kseniia Palin, Antti Oulasvirta, Anna Maria Feit, Sunjun Kim, and Per Ola Kristensson

How do people type on mobile devices? Observations from a study with 37,000 volunteers [PDF]

2018, ISS Best Application Paper Award (Top 2 Papers)

Sunjun Kim, and Geehyuk Lee

Design and Evaluation of Semi-Transparent Keyboards on a Touchscreen Tablet [PDF]

2018, CHI Honorable Mention (Top 5%)

Antti Oulasvirta, Sunjun Kim, and Byungjoo Lee

Neuromechanics of a Button Press [PDF]

2017, KAIST Breakthroughs Spring Issue

KAIST Biannual Engineering Magazine

[Link]

2016, NAVER Ph.D. Fellowship Award

Jun 14, 2016

[Notice (KAIST CS)]

2014, UIST Student Innovation Contest

1st People's Choice
with Sejin Cha and Hanjong Kim @ CIDR KAIST

[Contest Page] [Project Page (CIDR)] [Press] [VIDEO]

2013, CHI Honorable Mention (Top 5%)

Sunjun Kim, Jeongmin Son, Geehyuk Lee, Hwan Kim, Woohun Lee

TapBoard: Making a Touch Screen Keyboard More Touchable [PDF]

2012, UIST Student Innovation Contest

2nd Creativity
with Sujin Yu and Jeongmin Son

[Contest Page] [Demo+Source codes] [Press] [VIDEO]

2011, UIST Student Innovation Contest

2nd People's Choice
with Jiseong Gu and Seongkook Heo

[Contest Page] [VIDEO]

2010, VSMM Best Paper

Wonjun Lee, Sunjun Kim, Youn-kyung Lim, Alice Oh, Tek-jin Nam, Kee-Eung Kim

A Rapid Prototyping Method for Discovering User-Driven Opportunities for Personal Informatics (A Case Study in a Domestic Environment) [PDF]

Invited Talks

2021 Oct 26, "Games and Play", University of California, EECS 289: Topics in Human-Computer Interaction
2021 May 26, "Input Devices for Extreme Human Performance", Yonsei University Computer Science Department Seminar
2020 Oct 27, "Parametric Input Device Design and Optimization", DGIST Information and Communication Engineering Department Colloquium
2018 Apr 21, "Buttons", CHI 2018 Workshop on Mid-Air Haptics for Control Interfaces [Workshop]
2018 May 5, "User Interfaces Group Results on CHI 2018", CHIst seminiar, KAIST
2018 Feb 28, "GamerLab Workshop", Next Wave Conference, KOCCA

Lecture

2021 Spring - now, "Data Science", Undergraduate School Lecture on DGIST (Team teaching, with Sungjin Lee and Sanghyun Park)
2020 Fall - now, "Human-Computer Interaction and User Study", Graduate School Lecture on DGIST
2020 Spring - now, "Data Structure", Undergraduate School Lecture on DGIST
2019 Spring, "Constructing an intelligent input device", Main Lecturers on ELEC-E7870 Advanced Topics in User Interfaces, Aalto University
2018 Spring, "Input Devices", Guest Lecture on ELEC-D7010 Engineering for Humans, Aalto University
2018 Spring/2018 Fall/2019 Spring, "Using Rapid Prototyping for Research", Guest Lecture on ELEC-A4010 Electronics Workshop, Aalto University
2017 Fall/2018 Fall, "Input Sensing and Recognition", Guest Lecture on ELEC-E7851 Computational User Interface Design, Aalto University
2017 Spring, "Maked Things + @", Guest Lecture on CTP404 Making Things, KAIST
2011, Computer Science Department Summer Camp for Talented High School Students (Class Lecturer)
2009, Sharing Experinece 2009 Workshop (Tutorial Lecturer, Technical Assistant) [Press] [Video]

Teaching Assistant

2012 Spring, CS472 Human-Computer Interaction, KAIST
2011 Fall, CS341 Introduction to Computer Networks, KAIST
2011 Spring, CS500 Algorithm Design and Analysis, KAIST
2010 Spring, CS206 Data Structure, KAIST
2010 Spring/2009 Fall/2009 Spring/2007 Fall, CS101 Introduction to Programming, KAIST

Community Contributions

Committee: ISS 2019, MobileHCI 2019
Reviewer (confefence): CHI 2020, CHI 2020 LBW, CHI 2019, MobileHCI 2019, UIST 2018, CHI 2018, UIST 2017, CHI 2017, TechSym 2016, MobileHCI 2015, TEI 2015, TEI 2014, MUM 2013
Reviewer (journal): Applied Science, Heliyon

Programming (Advanced)

C#, Python, Java, PHP, C, C++

Physcial Computing (Advanced)

3D Printing, Arduino, Processing, Circuit design (Eagles CAD), Soldering, CNC

2D/3D Graphics (Intermediate)

Photoshop, Illustrator, Inventor, OnShape, OpenSCAD

Web (Intermediate)

HTML, MySQL, PHP, CSS, JavaScript

• GitHub projects page
• Wooting One analog keyboard library
• As Makers: Thingiverse page
• Custom keyboard controllers: Aikon and ps2avr
• Serial communication on iOS: Jailbroken Serial
• iOS App: 책꽂이