Koji Koyamada

108 papers A 4B 8C 2Misc 4Journal 40Unranked 47
YearRankTypeTitle / Venue / Authors
2026 J jnl
Comparison of Trefftz-Based PINNs and Standard PINNs Focusing on Structure Preservation.
CoRR
Koji Koyamada
2026 J jnl
Do Boxes Affect Exploration Behavior and Performance in Group-in-a-box Layouts?
CoRR
Yuki Ueno, Hiroaki Natsukawa, Koji Koyamada
2025 J jnl
Do boxes affect exploration behavior and performance in group-in-a-box layouts?
J. Vis.
Yuki Ueno, Hiroaki Natsukawa, Koji Koyamada
2024 — book
Analysis and Visualization of Discrete Data Using Neural Networks
Koji Koyamada
2023 J jnl
High-precision page information extraction from 3D scanned booklets using physics-informed neural network.
J. Vis.
Zhongjiang Han, Jiarui Ou, Koji Koyamada
2021 J jnl
A Visual Analytics Approach for Ecosystem Dynamics based on Empirical Dynamic Modeling.
IEEE Trans. Vis. Comput. Graph.
Hiroaki Natsukawa, Ethan R. Deyle, Gerald M. Pao, Koji Koyamada, George Sugihara
2021 J jnl
Data-driven derivation of partial differential equations using neural network model.
Int. J. Model. Simul. Sci. Comput.
Koji Koyamada, Yu Long, Takuma Kawamura, Katsumi Konishi
2021 J jnl
Visualization of plasma shape in the LHD-type helical fusion reactor, FFHR, by a deep learning technique.
J. Vis.
Kunqi Hu, Koji Koyamada, Hiroaki Ohtani, Takuya Goto, Junichi Miyazawa
2020 C conf
Learning of Art Style Using AI and Its Evaluation Based on Psychological Experiments.
ICEC
Mai Cong Hung, Ryohei Nakatsu, Naoko Tosa, Takashi Kusumi, Koji Koyamada
2020 J jnl
Learning of Art Style Using AI and Its Evaluation Based on Psychological Experiments.
CoRR
Mai Cong Hung, Ryohei Nakatsu, Naoko Tosa, Takashi Kusumi, Koji Koyamada
2020 J jnl
Study on visualization of cognitive rectifying with conversation documents in psychological counseling.
Artif. Life Robotics
Yasuo Ebara, Tomoya Uetsuji, Minoru Kamata, Koji Koyamada
2020 J jnl
Visual analytics and prediction system based on deep belief networks for icing monitoring data of overhead power transmission lines.
J. Vis.
Chi Zhang, Qingwu Gong, Koji Koyamada
2020 J jnl
Visual extraction system for insulators on power transmission lines from UAV photographs using support vector machine and color models.
J. Vis.
Chi Zhang, Qingwu Gong, Ting Wang, Koji Koyamada
2019 J jnl
Exploration behavior of group-in-a-box layouts.
Vis. Informatics
Yuki Ueno, Hiroaki Natsukawa, Nozomi Aoyama, Koji Koyamada
2019 B conf
User Evaluation of Group-in-a-Box Variants.
PacificVis
Nozomi Aoyama, Yosuke Onoue, Yuki Ueno, Hiroaki Natsukawa, Koji Koyamada
2018 J jnl
A visual analytics system to support the formation of a hypothesis from calcium wave data.
Vis. Informatics
Kozen Umezawa, Hiroaki Natsukawa, Yosuke Onoue, Koji Koyamada
2018 — conf
Development of Visualization System to Analyze Conversation Documents in Psychological Counseling.
iCAST
Yasuo Ebara, Tomoya Uetsuji, Minoru Kamata, Koji Koyamada
2018 B conf
Development of an Integrated Visualization System for Phenotypic Character Networks.
PacificVis
Yosuke Onoue, Koji Kyoda, Miki Kioka, Kazutaka Baba, Shuichi Onami, Koji Koyamada
2018 J jnl
Guest Editors' Introduction: Special Section on IEEE PacificVis 2018.
IEEE Trans. Vis. Comput. Graph.
Stefan Bruckner, Koji Koyamada, Bongshin Lee
2018 J jnl
Visualization of JOV abstracts.
J. Vis.
Koji Koyamada, Yosuke Onoue, Miki Kioka, Tomoya Uetsuji, Kazutaka Baba
2017 — conf
A visual causal exploration framework case study: a torrential rain and a flash flood in Kobe city.
SIGGRAPH Asia Symposium on Visualization
Jorji Nonaka, Naohisa Sakamoto, Yasumitsu Maejima, Kenji Ono, Koji Koyamada
2017 — conf
Development of Integrated Visual Analytic Tool with 3D Visualization.
NBiS
Hideo Miyachi, Isamu Kuroki, Daisuke Matsuoka, Koji Koyamada
2017 — conf
Distributed Particle-Based Rendering Framework for Large Data Visualization on HPC Environments.
HPCS
Jorji Nonaka, Naohisa Sakamoto, Takashi Shimizu, Masahiro Fujita, Kenji Ono, Koji Koyamada
2017 J jnl
Layered Graph Drawing for Visualizing Evaluation Structures.
IEEE Computer Graphics and Applications
Yosuke Onoue, Nobuyuki Kukimoto, Naohisa Sakamoto, Kazuo Misue, Koji Koyamada
2017 — conf
Optimal tree reordering for group-in-a-box graph layouts.
SIGGRAPH Asia Symposium on Visualization
Yosuke Onoue, Koji Koyamada
2017 B conf
Quasi-biclique edge concentration: A visual analytics method for biclustering.
PacificVis
Yosuke Onoue, Koji Koyamada
2017 — ed.
SIGGRAPH ASIA 2017, Bangkok, Thailand, November 27 - 30, 2017 - Symposium on Visualization
SIGGRAPH Asia Symposium on Visualization
Koji Koyamada, Puripant Ruchikachorn
2017 J jnl
Symposium on visualization in high-performance computing at SIGGRAPH Asia 2015.
J. Vis.
Fumiaki Araki, Koji Koyamada
2017 B conf
Using interactive particle-based rendering to visualize a large-scale time-varying unstructured volume with mixed cell types.
PacificVis
Kun Zhao, Naohisa Sakamoto, Koji Koyamada
2017 — conf
Visual analytics of brain effective connectivity using convergent cross mapping.
SIGGRAPH Asia Symposium on Visualization
Hiroaki Natsukawa, Koji Koyamada
2016 J jnl
E-Grid: a visual analytics system for evaluation structures.
J. Vis.
Yosuke Onoue, Nobuyuki Kukimoto, Naohisa Sakamoto, Koji Koyamada
2016 — conf
Fusion Visualization System as an Open Science Foundation.
NBiS
Hideo Miyachi, Koji Koyamada, Daisuke Matsuoka, Isamu Kuroki
2016 J jnl
Minimizing the Number of Edges via Edge Concentration in Dense Layered Graphs.
IEEE Trans. Vis. Comput. Graph.
Yosuke Onoue, Nobuyuki Kukimoto, Naohisa Sakamoto, Koji Koyamada
2016 J jnl
Parallelized fusion visualization system.
Artif. Life Robotics
Hideo Miyachi, Naohisa Sakamoto, Koji Koyamada
2015 J jnl
Adaptive fused visualization for large-scale blood flow dataset with particle-based rendering.
J. Vis.
Kun Zhao, Naohisa Sakamoto, Koji Koyamada
2015 J jnl
Big Data Visual Analytics (NII Shonan Meeting 2015-17).
NII Shonan Meet. Rep.
Seok-Hee Hong, Koji Koyamada, Kwan-Liu Ma
2015 J jnl
Human-Centered Data Visualization [Guest editors' introduction].
IEEE Computer Graphics and Applications
Xiaoru Yuan, Baoquan Chen, Koji Koyamada, Issei Fujishiro
2015 Misc conf
Remote visualization system based on particle based volume rendering.
Visualization and Data Analysis
Takuma Kawamura, Yasuhiro Idomura, Hiroko Miyamura, Hiroshi Takemiya, Naohisa Sakamoto, Koji Koyamada
2015 J jnl
The 1st China Visualization Conference (ChinaVis).
J. Vis.
Koji Koyamada, Xiaoru Yuan
2015 — conf
Top computational visualization R&D problems 2015: panel.
SIGGRAPH Asia Visualization in High Performance Computing
Issei Fujishiro, Bing-Yu Chen, Wei Chen, Seok-Hee Hong, Takayuki Itoh, Koji Koyamada, Kenji Ono, Jorji Nonaka
2015 J jnl
Voting-based ensemble-averaging visualization for water mass distribution.
J. Vis.
Kun Zhao, Satoshi Nakada, Naohisa Sakamoto, Koji Koyamada
2014 B conf
A Stochastic Approach for Rendering Multiple Irregular Volumes.
PacificVis
Naohisa Sakamoto, Koji Koyamada
2014 B conf
Agenda Setting in Policy-Making Using Visualization Techniques.
PacificVis
Koji Koyamada, Nobuyuki Kukimoto
2014 B conf
Application of Stochastic Point-Based Rendering to Transparent Visualization of Large-Scale Laser-Scanned Data of 3D Cultural Assets.
PacificVis
Satoshi Tanaka, Makoto Uemura, Kyoko Hasegawa, Takehiko Kitagawa, Takahiro Yoshida, Asuka Sugiyama, Hiromi T. Tanaka, Atsushi Okamoto, Naohisa Sakamoto, Koji Koyamada
2014 — conf
Applying Fusion Visualization to Unstructured Data.
NBiS
Hideo Miyachi, Naohisa Sakamoto, Koji Koyamada
2014 — conf
Fused Visualization for Large-Scale Time-Varying Volume Data with Adaptive Particle-Based Rendering.
AsiaSim
Kun Zhao, Naohisa Sakamoto, Koji Koyamada
2014 J jnl
Fusion visualization for fluid dynamics in blood vessel.
Artif. Life Robotics
Hideo Miyachi, Tomoyuki Ishida, Naohisa Sakamoto, Koji Koyamada
2014 — conf
HyperInfo: Interactive Large Display for Informal Visual Communication.
NBiS
Nobuyuki Kukimoto, Yosuke Onoue, Kazuo Aoki, Kinya Fujita, Koji Koyamada
2014 J jnl
The Visualization Workshop 2013.
J. Vis.
Koji Koyamada, Xiaoru Yuan
2014 B conf
Visual Analysis of Habitat Suitability Index Model for Predicting the Locations of Fishing Grounds.
PacificVis
Takashi Uenaka, Naohisa Sakamoto, Koji Koyamada
2013 — conf
Compression for Large-Scale Time-Varying Volume Data Using Spatio-temporal Features.
AsiaSim
Kun Zhao, Naohisa Sakamoto, Koji Koyamada
2013 J jnl
High-quality particle-based volume rendering for large-scale unstructured volume datasets.
J. Vis.
Naohisa Sakamoto, Naoya Maeda, Takuma Kawamura, Koji Koyamada
2013 — conf
PetaFlow - An Example of Communication and Computational Technologies with Social Impact.
COMPSAC Workshops
Alexandre Ancel, Ingo Assenmacher, Ken-ichi Baba, Julien Cisonni, Yo Fujiso, Paulo Gonçalves, Matthieu Imbert, Koji Koyamada, P. Neyron, Kazunori Nozaki, Hiroyuki Ohsaki, Anne-Cécile Orgerie, Xavier Pelorson, Bruno Raffin, Naohisa Sakamoto, Eisaku Sakane, Shinji Shimojo, Annemie Van Hirtum, Shigeo Wada
2012 — conf
A Temporal Coherence Based Framework for Visualizing Time-Varying Unstructured Volume with PBVR.
AsiaSim (1)
Kun Zhao, Naohisa Sakamoto, Koji Koyamada
2012 — conf
A Volume Compression Scheme Based on Block Division with Fast Cubic B-spline Evaluation.
AsiaSim (3)
Kun Zhao, Naohisa Sakamoto, Koji Koyamada
2012 — conf
Detection of Linear Relationship among Dimensions in Multivariate Data by Parallel Coordinates.
AsiaSim (1)
Chi Zhang, Naohisa Sakamoto, Koji Koyamada
2012 — conf
Particle-Based Transparent Rendering of Implicit Surfaces and its Application to Fused Visualization.
EuroVis (Short Papers)
Satoshi Tanaka, Kyoko Hasegawa, Yoshiyuki Shimokubo, Tomonori Kaneko, Takuma Kawamura, Susumu Nakata, Saori Ojima, Naohisa Sakamoto, Hiromi T. Tanaka, Koji Koyamada
2012 — conf
Particle-Based Volume Rendering of Remote Volume Datasets Using FlowVR.
AsiaSim (1)
Allan Lorant, Alexandre Ancel, Kun Zhao, Naohisa Sakamoto, Koji Koyamada, Bruno Raffin
2012 — conf
Stoachastic Approach for Integrated Rendering of Volumes and Semi-transparent Surfaces.
SC Companion
Naohisa Sakamoto, Koji Koyamada
2011 — conf
Peta-Flow Computing: Vision and Challenges.
SAINT
Hiroyuki Ohsaki, Kazunori Nozaki, Ken-ichi Baba, Eisaku Sakane, Naohisa Sakamoto, Koji Koyamada, Shinji Shimojo
2010 J jnl
Grid-Independent Metropolis Sampling for Volume Visualization.
Int. J. Model. Simul. Sci. Comput.
Satoshi Tanaka, Kyoko Hasegawa, Susumu Nakata, Hideo Nakajima, Takuya Hatta, Frederika Rambu Ngana, Takuma Kawamura, Naohisa Sakamoto, Koji Koyamada
2010 J jnl
Improvement of particle-based volume rendering for visualizing irregular volume data sets.
Comput. Graph.
Naohisa Sakamoto, Takuma Kawamura, Koji Koyamada, Kazunori Nozaki
2010 J jnl
Level-of-Detail Rendering of Large-Scale Irregular Volume Datasets Using Particles.
J. Comput. Sci. Technol.
Takuma Kawamura, Naohisa Sakamoto, Koji Koyamada
2010 — conf
Parallelization of Particle Based Volume Rendering on Tiled Display Wall.
NBiS
Hideo Miyachi, Hironori Shigeta, Kiyoshi Kiyokawa, Hiroshi Kuwano, Naohisa Sakamoto, Koji Koyamada
2010 J jnl
Particle-based multiple irregular volume rendering on CUDA.
Simul. Model. Pract. Theory
Ding Zhongming, Takuma Kawamura, Naohisa Sakamoto, Koji Koyamada
2010 — conf
Petaflow - A Project Towards Information and Communication Technologies in Society.
SAINT
Paulo Gonçalves, Xavier Grandchamp, Xavier Pelorson, Bruno Raffin, Annemie Van Hirtum, Pascale Vicat-Blanc, Ken-ichi Baba, Julien Cisonni, Yasuo Ebara, Kazunori Nozaki, Hiroyuki Ohsaki, Shigeo Wada, Takuma Kawamura, Koji Koyamada, Eisaku Sakane, Naohisa Sakamoto, Shinji Shimojo
2008 — conf
A Particle Modeling for Rendering Irregular Volumes.
UKSim
Koji Koyamada, Naohisa Sakamoto, Satoshi Tanaka
2008 — conf
Development of Tea Ceremony e-Learning Environment within Immersive Projection Technology.
AINA Workshops
Yusuke Gotoh, Yasuo Ebara, Tomoki Yoshihisa, Koji Koyamada, Masanori Kanazawa
2008 — conf
Evaluation Experiment on Eye-to-Eye Contact in Remote Communication with Tiled Displays Environments.
AINA Workshops
Yasuo Ebara, Nobuyuki Kukimoto, Koji Koyamada
2008 — conf
Hardware-Accelerated Particle-Based Volume Rendering for Multiple Irregular Volumes.
ISVC (2)
Naohisa Sakamoto, Ding Zhongming, Takuma Kawamura, Koji Koyamada
2008 J jnl
Tele-immersive collaborative virtual environment for intuitive interpretation.
Artif. Life Robotics
Nobuyuki Kukimoto, Yasuo Ebara, Koji Koyamada
2007 Misc conf
A real-time sensor network visualization system using KVS: Kyoto visualization system.
SenSys
Norihisa Segawa, Yukio Yasuhara, Naohisa Sakamoto, Tomoki Yoshihisa, Yasuo Ebara, Koji Koyamada
2007 — conf
Particle-based volume rendering.
APVIS
Naohisa Sakamoto, Jorji Nonaka, Koji Koyamada, Satoshi Tanaka
2007 — conf
Tele-Immersive Collaboration Using High-Resolution Video in Tiled Displays Environment.
AINA Workshops (2)
Yasuo Ebara, Nobuyuki Kukimoto, Jason Leigh, Koji Koyamada
2006 — conf
Design and Implementation for A Bimanual Input System on Virtual Environments.
AINA (2)
Tomoki Yoshihisa, Koji Koyamada, Yukio Yasuhara, Masahiko Tsukamoto
2006 — conf
Framework for Creating New Discriminats for Detecting DTI properties: DTI Mapper.
EMBC
Koji Sakai, Naohisa Sakamoto, Jorji Nonaka, Yukio Yasuhara, Koji Koyamada
2006 J jnl
Hierarchical Visualization of Network Intrusion Detection Data.
IEEE Computer Graphics and Applications
Takayuki Itoh, Hiroki Takakura, Atsushi Sawada, Koji Koyamada
2006 — conf
Improved Hierarchical Parameter Optimization Technique - Application for a cardiac myocyte model.
EMBC
Yukiko M. Yamashita, Koji Sakai, Naohisa Sakamoto, Jorji Nonaka, Koji Koyamada
2006 — conf
Study on Eye-to-Eye Contact by Multi-Viewpoint Videos Merging System for Tele-immersive Environment.
AINA (2)
Yasuo Ebara, Tetsuya Nabuchi, Naohisa Sakamoto, Koji Koyamada
2006 C conf
Volume Rendering Using Tiny Particles.
ISM
Naohisa Sakamoto, Jorji Nonaka, Koji Koyamada, Satoshi Tanaka
2005 — conf
3D Data Transmitting and Displaying System with an Omni-Directional Display for Group Learning.
C5
Yukio Yasuhara, Nobuyuki Kukimoto, Naohisa Sakamoto, Yasuo Ebara, Koji Koyamada
2005 — conf
A Course-Grid Pre-Processing based Load Balancing Scheme for Parallel Line Integral Convolution.
IASTED PDCS
Jorji Nonaka, Koji Sakai, Koji Koyamada, Masanori Kanazawa
2005 — conf
A Similarity Evaluation Method for Volume Data Sets by Using Critical Point Graph.
ISHPC
Tomoki Minami, Koji Sakai, Koji Koyamada
2005 J jnl
Hybrid Image Composition Mechanism for Enhancing Volume Graphics Clusters.
IEICE Trans. Inf. Syst.
Jorji Nonaka, Nobuyuki Kukimoto, Yasuo Ebara, Masato Ogata, Takeshi Iwashita, Masanori Kanazawa, Koji Koyamada
2005 — conf
Interactive Controller for 3D Contents with Omni-directional Display.
ICPADS (2)
Yukio Yasuhara, Naohisa Sakamoto, Nobuyuki Kukimoto, Yasuo Ebara, Koji Koyamada
2005 — ch.
Isosurface Extraction Using Extrema Graphs.
The Visualization Handbook
Takayuki Itoh, Koji Koyamada
2005 A conf
Particle Generation from User-specified Transfer Function for Point-based Volume Rendering.
IEEE Visualization
Naohisa Sakamoto, Koji Koyamada
2005 — conf
The Method to Evaluate a Similarity of Two Dimensional Data Using Critical Point Graph.
ICPADS (2)
Tomoki Minami, Koji Sakai, Koji Koyamada
2005 — conf
Virtual Object Reconstruction in Real World.
ICPADS (2)
Koji Sakai, Naohisa Sakamoto, Koji Koyamada, Tatsuo Hasegawa
2004 — conf
Hybrid Hardware-Accelerated Image Composition for Sort-Last Parallel Rendering on Graphics Clusters with Commodity Image Compositor.
VolVis
Jorji Nonaka, Nobuyuki Kukimoto, Naohisa Sakamoto, Hiroshi Hazama, Yasuhiro Watashiba, Xuezhen Liu, Masato Ogata, Masanori Kanazawa, Koji Koyamada
2004 — conf
Remote Visualization Using Resource Monitoring Technique for Volume Rendering of Large Datasets.
SAINT
Yasuo Ebara, Yasuhiro Watashiba, Koji Koyamada, Koji Sakai, Akio Doi
2003 — conf
A Streaming-based Technique for Volume Rendering of Large Datasets6.
Computer Graphics and Imaging
Yasuhiro Watashiba, Jorji Nonaka, Naohisa Sakamoto, Yasuo Ebara, Koji Koyamada, Masanori Kanazawa
2003 — conf
View-independent Texture Representation for Omnidirectional Display.
Computer Graphics and Imaging
Naohisa Sakamoto, Jorji Nonaka, T. Takai, Koji Koyamada, T. Matsuyama
2001 — conf
Effective Ray-casting of Unstructured Grids.
VIIP
Koji Koyamada, Akio Doi
2001 J jnl
Fast Isosurface Generation Using the Volume Thinning Algorithm.
IEEE Trans. Vis. Comput. Graph.
Takayuki Itoh, Yasushi Yamaguchi, Koji Koyamada
2000 Misc conf
A thermal compact modeling method using Response Surface Methodology with Genetic Algorithm.
PDPTA
Masanori Kuzuno, Toshihiko Nishio, Koji Koyamada
2000 — conf
Error visualization of tetrahedral subdivision approach for trilinear interpolation.
ICPADS Workshops
Akio Doi, Koji Koyamada
2000 — conf
Fast Isosurface Generation Using the Cell-Edge Centered Propagation Algorithm.
ISHPC
Takayuki Itoh, Yasushi Yamaguchi, Koji Koyamada
2000 — conf
Fast Ray-Casting for Irregular Volumes.
ISHPC
Koji Koyamada
2000 — conf
Visualization of vortical flow using multiple slices.
ICPADS Workshops
Koji Koyamada, Kazuma Kamisawa, Akio Doi
1997 Misc conf
Vortex flow visualization using tetrahedral cell subdivision.
PG
Akio Doi, Satoshi Suzuki, Koji Koyamada, Shinji Sannakanishi
1996 A conf
Volume Thinning for Automatic Isosurface Propagation.
IEEE Visualization
Takayuki Itoh, Yasushi Yamaguchi, Koji Koyamada
1995 J jnl
Automatic Isosurface Propagation Using an Extrema Graph and Sorted Boundary Cell Lists.
IEEE Trans. Vis. Comput. Graph.
Takayuki Itoh, Koji Koyamada
1995 J jnl
Fast generation of spherical slicing surfaces for irregular volume rendering.
Vis. Comput.
Koji Koyamada, Takayuki Ito
1994 A conf
Isosurface Generation by Using Extrema Graphs.
IEEE Visualization
Takayuki Itoh, Koji Koyamada
1992 J jnl
A high-speed integrated renderer for interpreting multiple 3D volume data.
Comput. Animat. Virtual Worlds
Tatsuo Miyazawa, Koji Koyamada
1992 A conf
Visualization of Simulated Airflow in a Clean Room.
IEEE Visualization
Koji Koyamada
1991 J jnl
Volume visualization of 3D finite element method results.
IBM J. Res. Dev.
Koji Koyamada, Toshihiko Nishio