Yuki Koyama, Ph.D.

Short Bio

Yuki Koyama is a Senior Researcher at National Institute of Advanced Industrial Science and Technology (AIST). He received his Ph.D. from The University of Tokyo in 2017, advised by Prof. Takeo Igarashi. His research fields are computer graphics and human-computer interaction. In particular, he is interested in supporting designers by using computational techniques such as mathematical optimization. He has published papers at ACM SIGGRAPH, CHI, UIST, etc. From 2021, he also started working at Graphinica, Inc., in which he is aiming at bridging art and technology in animation production. He was awarded JSPS Ikushi Prize (2017), Asiagraphics Young Researcher Award (2021), and IPSJ/ACM Award for Early Career Contributions to Global Research (2024).

Research Interests

My research interests lie on the cross-disciplinary field between Computer Graphics and Human-Computer Interaction. In particular, I am interested in

  • Computational design with preference learning and/or Bayesian optimization
  • Computational design for functional fabrication
  • Expressive computer animation

Recent News

Research Projects


FontCLIP: A Semantic Typography Visual-Language Model for Multilingual Font Applications

Yuki Tatsukawa, I-Chao Shen, Anran Qi, Yuki Koyama, Takeo Igarashi, Ariel Shamir

Computer Graphics Forum (Eurographics 2024)


A Structure-Guided Diffusion Model for Large-Hole Image Completion

Daichi Horita, Jiaolong Yang, Dong Chen, Yuki Koyama, Kiyoharu Aizawa, Nicu Sebe

BMVC 2023





Vocal-Accompaniment Compatibility Estimation Using Self-Supervised and Joint-Embedding Techniques

Takayuki Nakatsuka, Kento Watanabe, Yuki Koyama, Masahiro Hamasaki, Masataka Goto, Shigeo Morishima

IEEE Access (2021)



Interactive Exploration-Exploitation Balancing for Generative Melody Composition

Yijun Zhou, Yuki Koyama, Masataka Goto, Takeo Igarashi

IUI 2021


Generative Melody Composition with Human-in-the-Loop Bayesian Optimization

Yijun Zhou, Yuki Koyama, Masataka Goto, Takeo Igarashi

The 2020 Joint Conference on AI Music Creativity (CSMC-MuMe 2020)


Audio-Visual Object Removal in 360-Degree Videos

Ryo Shimamura, Qi Feng, Yuki Koyama, Takayuki Nakatsuka, Satoru Fukayama, Masahiro Hamasaki, Masataka Goto, Shigeo Morishima

The Visual Computer (CGI 2020)


Sequential Gallery for Interactive Visual Design Optimization

Yuki Koyama, Issei Sato, Masataka Goto

ACM Transactions on Graphics (SIGGRAPH 2020)


Human-in-the-Loop Differential Subspace Search in High-Dimensional Latent Space

Chia-Hsing Chiu, Yuki Koyama, Yu-Chi Lai, Takeo Igarashi, Yonghao Yue

ACM Transactions on Graphics (SIGGRAPH 2020)


Interactive Deep Singing-Voice Separation Based on Human-in-the-Loop Adaptation

Tomoyasu Nakano, Yuki Koyama, Masahiro Hamasaki, Masataka Goto

IUI 2020


Precomputed Optimal One-Hop Motion Transition for Responsive Character Animation

Yuki Koyama, Masataka Goto

The Visual Computer (CGI 2019)


Decomposing Images into Layers with Advanced Color Blending

Yuki Koyama, Masataka Goto

Computer Graphics Forum (Pacific Graphics 2018)



Computational Design of Hand-Held VR Controllers Using Haptic Shape Illusion

Eisuke Fujinawa, Shigeo Yoshida, Yuki Koyama, Takuji Narumi, Tomohiro Tanikawa, Michitaka Hirose

VRST 2017


Sequential Line Search for Efficient Visual Design Optimization by Crowds

Yuki Koyama, Issei Sato, Daisuke Sakamoto, Takeo Igarashi

ACM Transactions on Graphics (SIGGRAPH 2017)


An Interactive Design System of Free-Formed Bamboo-Copters

Morihiro Nakamura, Yuki Koyama, Daisuke Sakamoto, Takeo Igarashi

Computer Graphics Forum (Pacific Graphics 2016)


Icon Set Selection via Human Computation

Lasse Farnung Laursen, Yuki Koyama, Hsiang-Ting Chen, Elena Garces, Diego Gutierrez, Richard Harper, Takeo Igarashi

Pacific Graphics 2016 Short Papers


Interactive Deformation of Structurally Complex Heart Models Constructed from Medical Images

Kazutaka Nakashima, Yuki Koyama, Takeo Igarashi, Takashi Ijiri, Shin Inada, Kazuo Nakazawa

Eurographics 2016 Short Papers


SelPh: Progressive Learning and Support of Manual Photo Color Enhancement

Yuki Koyama, Daisuke Sakamoto, Takeo Igarashi

CHI 2016


AutoConnect: Computational Design of 3D-Printable Connectors

Yuki Koyama, Shinjiro Sueda, Emma Steinhardt, Takeo Igarashi, Ariel Shamir, Wojciech Matusik

ACM Transactions on Graphics (SIGGRAPH Asia 2015)


Crowd-Powered Parameter Analysis for Visual Design Exploration

Yuki Koyama, Daisuke Sakamoto, Takeo Igarashi

UIST 2014


Pteromys: Interactive Design and Optimization of Free-formed Free-flight Model Airplanes

Nobuyuki Umetani, Yuki Koyama, Ryan Schmidt, Takeo Igarashi

ACM Transactions on Graphics (SIGGRAPH 2014)



Real-Time Example-Based Elastic Deformation

Yuki Koyama, Kenshi Takayama, Nobuyuki Umetani, Takeo Igarashi

SCA 2012


Other Activities

[Book Chapter] Preferential Bayesian Optimisation for Visual Design

Yuki Koyama, Toby Chong, Takeo Igarashi

Bayesian Methods for Interaction and Design (Cambridge University Press) (2022)


[Course] Computer Graphics

Takeo Igarashi, Kenshi Takayama, Yuki Koyama, Kentaro Suzuki

The University of Tokyo (2022 Summer, 2023 Summer)


[Course] User Interfaces for High-Dimensional Design Problems: From Theories to Implementations

Yonghao Yue, Yuki Koyama, Issei Sato, Takeo Igarashi

SIGGRAPH 2021 Courses (Aug. 2021)


[Course] Introduction to Computational Design

Yuki Koyama

CHI 2021 Courses (May 2021)


[Course] Intelligent Tools for Creative Graphics

Ariel Shamir, Niloy J. Mitra, Nobuyuki Umetani, Yuki Koyama

SIGGRAPH 2020 Courses (Aug. 2020)


Unblending Web App

Yuki Koyama, Takahiro Inoue, Masataka Goto

Demo of our image processing technique called unblending (Jan. 2019)


[Book Chapter] Computational Design with Crowds

Yuki Koyama, Takeo Igarashi

Computational Interaction (Oxford University Press) (2018)


[Ph.D. Thesis] Computational Design Driven by Visual Aesthetic Preference

Yuki Koyama

Graduate School of Information Science and Technology, The University of Tokyo (2017)


Publications

Peer-Reviewed Journal/Conference Papers

XXX XXX, Yuki Koyama, XXX XXX, XXX XXX, and XXX XXX. 2024. TBA. In Proceedings of TBA (TBA), pp.XX–XX.
Shigeo Yoshida, Yuki Koyama, and Yoshitaka Ushiku. 2024. Toward AI-Mediated Avatar-Based Telecommunication: Investigating Visual Impression of Switching Between User- and AI-Controlled Avatars in Video Chat. IEEE Access 12, pp.113372–113383 (2024). (Note: Shigeo Yoshida and Yuki Koyama contributed equally to this work.)
Yuki Tatsukawa, I-Chao Shen, Anran Qi, Yuki Koyama, Takeo Igarashi, and Ariel Shamir. 2024. FontCLIP: A Semantic Typography Visual-Language Model for Multilingual Font Applications. Comput. Graph. Forum 43, 2, pp.e15043:1–e15043:11 (2024). (a.k.a. Proceedings of Eurographics 2024)
Daichi Horita, Jiaolong Yang, Dong Chen, Yuki Koyama, Kiyoharu Aizawa, and Nicu Sebe. 2023. A Structure-Guided Diffusion Model for Large-Hole Image Completion. In Proceedings of the 34th British Machine Vision Conference (BMVC 2023), pp.258:1–258:15.
Yuki Koyama and Masataka Goto. 2022. BO as Assistant: Using Bayesian Optimization for Asynchronously Generating Design Suggestions. In Proceedings of the 35th Annual ACM Symposium on User Interface Software and Technology (UIST '22), pp.77:1–77:14.
Kenta Yamamoto, Yuki Koyama, and Yoichi Ochiai. 2022. Photographic Lighting Design with Photographer-in-the-Loop Bayesian Optimization. In Proceedings of the 35th Annual ACM Symposium on User Interface Software and Technology (UIST '22), pp.92:1–92:11.
Hiromu Yakura, Yuki Koyama, and Masataka Goto. 2021. Tool- and Domain-Agnostic Parameterization of Style Transfer Effects Leveraging Pretrained Perceptual Metrics. In Proceedings of the 30th International Joint Conference on Artificial Intelligence (IJCAI '21), pp.1208–1216.
Takayuki Nakatsuka, Kento Watanabe, Yuki Koyama, Masahiro Hamasaki, Masataka Goto, and Shigeo Morishima. 2021. Vocal-Accompaniment Compatibility Estimation Using Self-Supervised and Joint-Embedding Techniques. IEEE Access 9, pp.101994–102003 (2021).
Takayuki Nakatsuka, Kazuyoshi Yoshii, Yuki Koyama, Satoru Fukayama, Masataka Goto, and Shigeo Morishima. 2021. MirrorNet: A Deep Reflective Approach to 2D Pose Estimation for Single-Person Images. Journal of Information Processing 29, pp.406–423 (2021).
Masa Ogata and Yuki Koyama. 2021. A Computational Approach to Magnetic Force Feedback Design. In Proceedings of 2021 CHI Conference on Human Factors in Computing Systems (CHI '21), pp.284:1–284:12.
Yijun Zhou, Yuki Koyama, Masataka Goto, and Takeo Igarashi. 2021. Interactive Exploration-Exploitation Balancing for Generative Melody Composition. In Proceedings of the 26th International Conference on Intelligent User Interfaces (IUI '21), pp.43–47.
Yijun Zhou, Yuki Koyama, Masataka Goto, and Takeo Igarashi. 2020. Generative Melody Composition with Human-in-the-Loop Bayesian Optimization. In Proceedings of the 2020 Joint Conference on AI Music Creativity (CSMC-MuMe 2020), pp.21:1–21:10.
Ryo Shimamura, Qi Feng, Yuki Koyama, Takayuki Nakatsuka, Satoru Fukayama, Masahiro Hamasaki, Masataka Goto, and Shigeo Morishima. 2020. Audio-Visual Object Removal in 360-Degree Videos. Visual Comput. 36, 10–12, pp.2117–2128 (2020). (a.k.a. Proceedings of CGI 2020)
Yuki Koyama, Issei Sato, and Masataka Goto. 2020. Sequential Gallery for Interactive Visual Design Optimization. ACM Trans. Graph. 39, 4, pp.88:1–88:12 (2020). (a.k.a. Proceedings of SIGGRAPH 2020)
Chia-Hsing Chiu, Yuki Koyama, Yu-Chi Lai, Takeo Igarashi, and Yonghao Yue. 2020. Human-in-the-Loop Differential Subspace Search in High-Dimensional Latent Space. ACM Trans. Graph. 39, 4, pp.85:1–85:15 (2020). (a.k.a. Proceedings of SIGGRAPH 2020)
Tomoyasu Nakano, Yuki Koyama, Masahiro Hamasaki, and Masataka Goto. 2020. Interactive Deep Singing-Voice Separation Based on Human-in-the-Loop Adaptation. In Proceedings of the 25th International Conference on Intelligent User Interfaces (IUI '20), pp.78–82.
Yuki Koyama and Masataka Goto. 2019. Precomputed Optimal One-Hop Motion Transition for Responsive Character Animation. Visual Comput. 35, 6–8, pp.1131–1142 (2019). (a.k.a. Proceedings of CGI 2019)
Yuki Koyama and Masataka Goto. 2018. Decomposing Images into Layers with Advanced Color Blending. Comput. Graph. Forum 37, 7, pp.397–407 (2018). (a.k.a. Proceedings of Pacific Graphics 2018)
Yuki Koyama and Masataka Goto. 2018. OptiMo: Optimization-Guided Motion Editing for Keyframe Character Animation. In Proceedings of 2018 CHI Conference on Human Factors in Computing Systems (CHI '18), pp.161:1–161:12.
Eisuke Fujinawa, Shigeo Yoshida, Yuki Koyama, Takuji Narumi, Tomohiro Tanikawa, and Michitaka Hirose. 2017. Computational Design of Hand-Held VR Controllers Using Haptic Shape Illusion. In Proceedings of the 23rd ACM Symposium on Virtual Reality Software and Technology (VRST '17), pp.28:1–28:10.
Yuki Koyama, Issei Sato, Daisuke Sakamoto, and Takeo Igarashi. 2017. Sequential Line Search for Efficient Visual Design Optimization by Crowds. ACM Trans. Graph. 36, 4, pp.48:1–48:11 (2017). (a.k.a. Proceedings of SIGGRAPH 2017)
Morihiro Nakamura, Yuki Koyama, Daisuke Sakamoto, and Takeo Igarashi. 2016. An Interactive Design System of Free-Formed Bamboo-Copters. Comput. Graph. Forum 35, 7, pp.323–332 (2016). (a.k.a. Proceedings of Pacific Graphics 2016)
Lasse Farnung Laursen, Yuki Koyama, Hsiang-Ting Chen, Elena Garces, Diego Gutierrez, Richard Harper, and Takeo Igarashi. 2016. Icon Set Selection via Human Computation. In Proceedings of Pacific Graphics 2016—Short Papers, pp.1–6.
Kazutaka Nakashima, Yuki Koyama, Takeo Igarashi, Takashi Ijiri, Shin Inada, and Kazuo Nakazawa. 2016. Interactive Deformation of Structurally Complex Heart Models Constructed from Medical Images. In Proceedings of Eurographics 2016—Short Papers, pp.49–52.
Yuki Koyama, Daisuke Sakamoto, and Takeo Igarashi. 2016. SelPh: Progressive Learning and Support of Manual Photo Color Enhancement. In Proceedings of the 2016 CHI Conference on Human Factors in Computing Systems (CHI '16), pp.2520–2532.
Yuki Koyama, Shinjiro Sueda, Emma Steinhardt, Takeo Igarashi, Ariel Shamir, and Wojciech Matusik. 2015. AutoConnect: Computational Design of 3D-Printable Connectors. ACM Trans. Graph. 34, 6, pp.231:1–231:11 (2015). (a.k.a. Proceedings of SIGGRAPH Asia 2015)
Yuki Koyama, Daisuke Sakamoto, and Takeo Igarashi. 2014. Crowd-Powered Parameter Analysis for Visual Design Exploration. In Proceedings of the 27th Annual ACM Symposium on User Interface Software and Technology (UIST '14), pp.65–74.
Nobuyuki Umetani, Yuki Koyama, Ryan Schmidt, and Takeo Igarashi. 2014. Pteromys: Interactive Design and Optimization of Free-formed Free-flight Model Airplanes. ACM Trans. Graph. 33, 4, pp.65:1–65:10 (2014). (a.k.a. Proceedings of SIGGRAPH 2014)
Yuki Koyama and Takeo Igarashi. 2013. View-Dependent Control of Elastic Rod Simulation for 3D Character Animation. In Proceedings of the 12th ACM SIGGRAPH/Eurographics Symposium on Computer Animation (SCA '13), pp.73–78.
Yuki Koyama, Kenshi Takayama, Nobuyuki Umetani, and Takeo Igarashi. 2012. Real-Time Example-Based Elastic Deformation. In Proceedings of the 11th ACM SIGGRAPH/Eurographics Symposium on Computer Animation (SCA '12), pp.19–24.

Other Publications

Daichi Horita, Jiaolong Yang, Dong Chen, Yuki Koyama, and Kiyoharu Aizawa. 2023. A Structure-Guided Diffusion Model for Large-Hole Diverse Image Completion. In Proceedings of CVPR 2023 Workshops: Generative Models for Computer Vision, pp.22:1–22:6.
Yuki Koyama, Toby Chong, and Takeo Igarashi. 2022. Preferential Bayesian Optimisation for Visual Design. In Bayesian Methods for Interaction and Design (Eds. John H. Williamson, Antti Oulasvirta, Per Ola Kristensson, and Nikola Banovic), Cambridge University Press, pp.239–258.
Yuki Koyama, Takeshi Tsuruta, Heisuke Saito, Daisuke Takizawa, and Hiroshi Moriguchi. 2021. A Procedural MatCap System for Cel-Shaded Japanese Animation Production. In SIGGRAPH Asia 2021 Posters, pp.34:1–34:2.
Yonghao Yue, Yuki Koyama, Issei Sato, and Takeo Igarashi. 2021. User Interfaces for High-Dimensional Design Problems: From Theories to Implementations. In ACM SIGGRAPH 2021 Courses, pp.11:1–11:34.
Yuki Koyama. 2021. Introduction to Computational Design. In Extended Abstracts of the 2021 CHI Conference on Human Factors in Computing Systems (CHI EA '21—Courses), pp.136:1–136:4.
Ariel Shamir, Niloy J. Mitra, Nobuyuki Umetani, and Yuki Koyama. 2020. Intelligent Tools for Creative Graphics. In ACM SIGGRAPH 2020 Courses, pp.15:1–15:11.
Tomoyasu Nakano, Yuki Koyama, Masahiro Hamasaki, and Masataka Goto. 2019. Autocomplete Vocal-fo Annotation of Songs Using Musical Repetitions. In Proceedings of the 24th International Conference on Intelligent User Interfaces Companion (IUI '19 Companion—Demos and Posters), pp.71–72.
Shoki Miyagawa, Yuki Koyama, Jun Kato, Masataka Goto, and Shigeo Morishima. 2018. Placing Music in Space: A Study on Music Appreciation with Spatial Mapping. In Proceedings of the 2018 ACM Conference Companion Publication on Designing Interactive Systems (DIS '18 Companion—Provocations & Works in Progress), pp.39–43.
Yuki Koyama and Takeo Igarashi. 2018. Computational Design with Crowds. In Computational Interaction (Eds. Antti Oulasvirta, Per Ola Kristensson, Xiaojun Bi, and Andrew Howes), Oxford University Press, pp.153–184.
Antti Oulasvirta, Yuki Koyama, Ranjitha Kumar, Daniele Panozzo, and Jürgen Steimle. 2017. Computational Design. In Dagstuhl Reports: Computational Interactivity (Dagstuhl Seminar 17232) (Eds. Xiaojun Bi, Otmar Hilliges, Takeo Igarashi, and Antti Oulasvirta), pp.65–66. (Note: Antti Oulasvirta wrote the summary of the group discussion at the seminar.)
Yuki Koyama. 2017. Crowdsourcing Visual Design. In Dagstuhl Reports: Computational Interactivity (Dagstuhl Seminar 17232) (Eds. Xiaojun Bi, Otmar Hilliges, Takeo Igarashi, and Antti Oulasvirta), p.57.
Yuki Koyama. 2016. Computational Design Driven by Aesthetic Preference. In Adjunct Proceedings of the 29th Annual ACM Symposium on User Interface Software and Technology (UIST '16 Adjunct—Doctoral Symposium), pp.1–4.
Yuki Koyama, Daisuke Sakamoto, and Takeo Igarashi. 2016. Supporting Photo Color Enhancement by Progressively Learning Aesthetic Preference. In Proceedings of ACM CHI 2016 Symposium on Emerging Japanese HCI Research Collection, pp.11–15.
Yuki Koyama, Daisuke Sakamoto, and Takeo Igarashi. 2015. Crowd-Powered Parameter Analysis for Computational Design Exploration. In ACM SIGGRAPH 2015 Posters (SIGGRAPH '15 Posters), p.2:1.

Thesis

Yuki Koyama. 2017. Computational Design Driven by Visual Aesthetic Preference. Ph.D. Thesis, The University of Tokyo. Supervised by Prof. Takeo Igarashi.
Yuki Koyama. 2014. View-Dependent Control of Elastic Rod Simulation for 3D Character Animation. Master's Thesis, The University of Tokyo. Supervised by Prof. Takeo Igarashi.
Yuki Koyama. 2012. Real-Time Example-Based Elastic Deformation. Bachelor's Thesis, The University of Tokyo. Supervised by Prof. Takeo Igarashi.

Talks

Yuki Koyama. Human-in-the-Loop Preferential Bayesian Optimization for Visual Design. The 10th International Conference on Computational Visual Media (CVM 2022) (Keynote Talk). 2022/04/09.
Yuki Koyama. Human-in-the-Loop Preferential Bayesian Optimization for Visual Design. Asiagraphics Webinar. 2022/01/18.
Jun Kato, Yuki Koyama, Tatsuo Yotsukura, and Koya Imamura. R&D for Anime Production: State-of-the-Art and Future Prospects. SIGGRAPH Asia 2021 Featured Sessions. 2021/12/16.
Norihiko Miyoshi, Heisuke Saito, Hiroshi Moriguchi, Naoki Ao, Takashi Horiuchi, Takeshi Tsuruta, Yuki Koyama, and Hiroki Omae. Unity Anime Toolbox: The Key to Creating Studio Quality Animation in a Real-Time Engine. SIGGRAPH Asia 2021 Featured Sessions. 2021/12/15.
Yuki Koyama. Human-in-the-Loop Design Optimization. Computational Fabrication Seminar. 2021/05/05.
Yuki Koyama. Computational Design with Human Assessment. The 1st International Symposium on Intelligence Design (ISID '21). 2021/03/15.
Yuki Koyama. Sequential Gallery for Interactive Visual Design Optimization. SIGGRAPH 2020 Birds of a Feather: What is Happening in Japanese CG Research and Industry Now?. 2020/08/25.
Yuki Koyama. Sequential Line Search for Efficient Visual Design Optimization by Crowds. ACM SIGGRAPH Theater Event: SIGGRAPH in Japanese + Japan CG Showcase. 2017/07/30.
Yuki Koyama. Crowdsourcing Visual Design. Dagstuhl Seminar on Computational Interactivity. 2017/06/06.
Yuki Koyama. SelPh: Progressive Learning and Support of Manual Photo Color Enhancement. ETH Zurich. 2016/03/17.

Awards

Information Processing Society of Japan (IPSJ) and Association for Computing Machinery (ACM). IPSJ/ACM Award for Early Career Contributions to Global Research. 2024/03/15.
Funai Foundation for Information Technology. Funai Information Technology Award for Young Researchers. 2022/05/21.
National Institute of Advanced Industrial Science and Technology (AIST). AIST Best Paper Award. 2022/03/31.
Asian Association for Computer Graphics and Interactive Technology (Asiagraphics). Young Researcher Award. 2021/09/30.
Graduate School of Information Science and Technology, The University of Tokyo. Dean's Award. March 2017.
Japan Society for the Promotion of Science. JSPS Ikushi Prize. March 2017.
Microsoft Research Asia. Microsoft Research Asia Fellowship Nomination Award. October 2015.
Information Processing Society of Japan (IPSJ). IPSJ Yamashita SIG Research Award. March 2014.
Ministry of Economy, Trade and Industry (Japan). Innovative Technologies 2013. October 2013.
School of Science, The University of Tokyo. Dean's Award. March 2012.

Media

SportTechie. Play VR Tennis With A Controller That Mimics An Actual Racket. 2017/11/20.
Road to VR. ‘Haptic Shape Illusion’ Allows VR Controllers to Simulate Feel of Physically Larger Objects. 2017/11/11.
TechCrunch. Disney Invents A Way To Auto-Create Phone Mounts That Hook On To Pretty Much Anything. 2015/11/05.
CNET. Can an armadillo paper airplane fly? Autodesk says yes. 2014/08/09.
NewScientist. How the weirdest designs can become great paper planes. 2014/08/06.
DigInfo TV. Directable Physics Engine recreates 2D anime stylizations in 3D. 2013/11/19.

Professional Activities

Committee

SIGGRAPH Asia Technical Papers COI Coordinator (2022)
CHI Assistant to Technical Program Chairs (2021)
CHI Associate Chair (2023)
CHI Associate Chair (2022)
CHI Associate Chair (2020)
Eurographics International Program Committee (2022)
Eurographics International Program Committee (2021)
Pacific Graphics International Program Committee (2023)
Pacific Graphics International Program Committee (2022)
CGI International Program Committee (2019)
IUI (Regular) Program Committee (2019)
IUI (Regular) Program Committee (2018)
Asiagraphics Web Seminar Working Team (2021–current)

Reviewer

ACM Transactions on Graphics (2017, 2020)
IEEE Transactions on Visualization and Computer Graphics (2021)
Computer Graphics Forum (2022)
SIGGRAPH (2015, 2020, 2021, 2022, 2023)
SIGGRAPH Asia (2016, 2017, 2022, 2023, 2024)
UIST (2016, 2017, 2018, 2019, 2020, 2022, 2024)
CHI (2018, 2019, 2020, 2022, 2023, 2024, 2025)
Eurographics (2017, 2018, 2020, 2021, 2022)
Pacific Graphics (2013, 2016, 2022, 2023)
Computers & Graphics (2023)
ACM Transactions on Computer-Human Interaction (2023)
International Journal of Human-Computer Interaction (2022, 2023)
IEEE VR (2025)
CGI (2019)
ISS (2020)
IUI (2018, 2019)
VRST (2018)
SCF (2020)
IROS (2021)

Contact

Tel: +81-50-3522-3054
Address: AIST Tsukuba Central 2, 1-1-1 Umezono, Tsukuba, Ibaraki, 305-8568, Japan
E-mail: koyama.y@aist.go.jp