Yuki Koyama is a Researcher at National Institute of Advanced Industrial Science and Technology (AIST), where he is a member of Media Interaction Group. He received his Ph.D. from The University of Tokyo in 2017, advised by Prof. Takeo Igarashi. His research fields are mainly computer graphics and human-computer interaction. In particular, he is interested in enhancing various design activities by employing computational techniques such as mathematical optimization. In 2017, he was awarded JSPS Ikushi Prize.
Research Interests
My research interests lie on the cross-disciplinary field between Computer Graphics and Human-Computer Interaction. In particular, I am interested in
Graduate School of Information Science and Technology, The University of Tokyo (2017)
Publications
Peer-Reviewed Journal/Conference Papers
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.
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
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 & 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
Human-in-the-Loop Design Optimization. Computational Fabrication Seminar. May 5, 2021.
Computational Design with Human Assessment. The 1st International Symposium on Intelligence Design (ISID '20). March 15, 2021.
Sequential Gallery for Interactive Visual Design Optimization. SIGGRAPH 2020 Birds of a Feather: What is Happening in Japanese CG Research and Industry Now?. August 25, 2020.
Sequential Line Search for Efficient Visual Design Optimization by Crowds. ACM SIGGRAPH Theater Event: SIGGRAPH in Japanese + Japan CG Showcase. July 30, 2017.
Crowdsourcing Visual Design. Dagstuhl Seminar on Computational Interactivity. June 6, 2017.
[Invited Talk] Computational Design. Microsoft Research Intern Alumni Meeting (in Tokyo). December 22, 2016.
SelPh: Progressive Learning and Support of Manual Photo Color Enhancement. ETH Zurich. March 17, 2016.
Awards
Asia Graphics Association. Young Researcher Award. September 2021.
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.
