Kohei Fujita

Tjerk P. Straatsma, Tsuyoshi Ichimura, Kohei Fujita, 2018, SC18: International Conference for High Performance Computing, Networking, Storage and Analysis.

Performance Enhancement of Three-Dimensional Soil Structure Model via Optimization for Estimating Seismic Behavior of Buried Pipelines

Pher Errol Balde Quinay, Tsuyoshi Ichimura, Muneo Hori, 2017 .

Improving the Earthquake Resilience of Buildings: The worst case approach

Kohei Fujita, Izuru Takewaki, Abbas Moustafa, 2012 .

Heuristic Optimization with CPU-GPU Heterogeneous Wave Computing for Estimating Three-Dimensional Inner Structure

Tsuyoshi Ichimura, Kohei Fujita, Muneo Hori, 2019, ICCS.

Development of Element-by-Element Kernel Algorithms in Unstructured Implicit Low-Order Finite-Element Earthquake Simulation for Many-Core Wide-SIMD CPUs

Tsuyoshi Ichimura, Kohei Fujita, Muneo Hori, 2019, ICCS.

System identification of high-rise buildings using shear-bending model and ARX model: Experimental investigation

Kohei Fujita, Izuru Takewaki, Ayumi Ikeda, 2015 .

A Fast Scalable Implicit Solver with Concentrated Computation for Nonlinear Time-Evolution Problems on Low-Order Unstructured Finite Elements

Tsuyoshi Ichimura, Kohei Fujita, Kentaro Koyama, 2018, 2018 IEEE International Parallel and Distributed Processing Symposium (IPDPS).

Earthquake Response Bound Analysis of Uncertain Passively Controlled Buildings for Robustness Evaluation

Kohei Fujita, Izuru Takewaki, Abbas Moustafa, 2013 .

Damage identification for frame structures using vision-based measurement

Kohei Fujita, Izuru Takewaki, Jian Jiao, 2019 .

Stiffness Identification of Stiffness Identification of High-rise Buildings via Subspace and Inverse-mode Methods

Kohei Fujita, Izuru Takewaki, Yuhei Fujimori, 2017 .

Robustness Evaluation on Earthquake Response of Base-Isolated Buildings with Uncertain Structural Properties under Long-Period Ground Motions

Kohei Fujita, Izuru Takewaki, 2012 .

Event-Triggered Type-1 Servo Systems with Counting Computation Time for Linear Discrete-Time Systems

Kohei Fujita, Toshimitsu Ushio, 2015 .

Person Verification Using Intra-Palm Propagation Signals with A New Phase Spectrum

Kohei Fujita, Isao Nakanishi, Yuya Ishimoto, 2020, 2020 12th International Conference on Knowledge and Smart Technology (KST).

An evolutionary algorithm for optimal damper placement to minimize interstorey-drift transfer function in shear building

Kohei Fujita, Izuru Takewaki, Kaoru Yamamoto, 2010 .

Effect of Non-linearity of Connecting Dampers on Vibration Control of Connected Building Structures

Kohei Fujita, Izuru Takewaki, Masaaki Tsuji, 2016, Front. Built Environ..

Acceleration of Element-by-Element Kernel in Unstructured Implicit Low-Order Finite-Element Earthquake Simulation Using OpenACC on Pascal GPUs

Tsuyoshi Ichimura, Kohei Fujita, Muneo Hori, 2016, 2016 Third Workshop on Accelerator Programming Using Directives (WACCPD).

Improving the Earthquake Resilience of Buildings

Kohei Fujita, Izuru Takewaki, Abbas Moustafa, 2013 .

Innovative base-isolated building with large mass-ratio TMD at basement for greater earthquake resilience

Kohei Fujita, Izuru Takewaki, Masaaki Tsuji, 2015 .

Earthquake input energy to tall and base‐isolated buildings in time and frequency dual domains

Kohei Fujita, Izuru Takewaki, I. Takewaki, 2009 .

Development of Scalable Three-Dimensional Elasto-Plastic Nonlinear Wave Propagation Analysis Method for Earthquake Damage Estimation of Soft Grounds

Tsuyoshi Ichimura, Kohei Fujita, Muneo Hori, 2018, ICCS.

Optimal damper placement in hybrid control system of multiple isolation and building connection

Kohei Fujita, Izuru Takewaki, Masaaki Tsuji, 2017 .

Importance of interstory velocity on optimal along-height allocation of viscous oil dampers in super high-rise buildings

Kohei Fujita, Izuru Takewaki, Masaaki Tsuji, 2013 .

Story-wise system identification of actual shear building using ambient vibration data and ARX model

Kohei Fujita, Izuru Takewaki, Ayumi Ikeda, 2014 .

Optimal placement and design of nonlinear dampers for building structures in the frequency domain

Kohei Fujita, Izuru Takewaki, Zi-Qiang Lang, 2014 .

Smart passive damper control for greater building earthquake resilience in sustainable cities

Kohei Fujita, Izuru Takewaki, Hideo Takabatake, 2011 .

Stiffness and Damping Simultaneous Identification Based on Extrapolation of Unrecorded Response to Ground Motion

Kohei Fujita, Izuru Takewaki, Shinta Yoshitomi, 2014 .

Viscoelastic Crustal Deformation Computation Method with Reduced Random Memory Accesses for GPU-Based Computers

Tsuyoshi Ichimura, Kohei Fujita, Muneo Hori, 2018, ICCS.

Development of high-performance finite-element solver and application to seismic ground strain analysis of Tokyo

Tsuyoshi Ichimura, Muneo Hori, Kohei Fujita, 2016, 2016 Techno-Ocean (Techno-Ocean).

The Effectiveness of Low-Precision Floating Arithmetic on Numerical Codes: A Case Study on Power Consumption

Kohei Fujita, Kengo Nakajima, Ryuichi Sakamoto, 2020, HPC Asia.

Low-Order Finite Element Solver with Small Matrix-Matrix Multiplication Accelerated by AI-Specific Hardware for Crustal Deformation Computation

Tjerk P. Straatsma, Tsuyoshi Ichimura, Muneo Hori, 2020, PASC.

High-fidelity nonlinear low-order unstructured implicit finite-element seismic simulation of important structures by accelerated element-by-element method

Tsuyoshi Ichimura, Kohei Fujita, Kentaro Koyama, 2021, J. Comput. Sci..

20160 System identification of shear building using vibration data at consecutive floors and ARX model : Part 2: Verification of identified stiffness reliability

Kohei Fujita, Izuru Takewaki, Ayumi Ikeda, 2014 .

Implicit nonlinear wave simulation with 1.08T DOF and 0.270T unstructured finite elements to enhance comprehensive earthquake simulation

Pher Errol Balde Quinay, Tsuyoshi Ichimura, Kohei Fujita, 2015, SC15: International Conference for High Performance Computing, Networking, Storage and Analysis.

Proposal of Method of Numerically Manufactured Solutions for Code Verification of Elasto-Plastic Problems

Muneo Hori, Kohei Fujita, Jian Chen, 2017 .

A Framework for Assessing Liquefaction Hazard for Urban Areas Based on Soil Dynamics

Kohei Fujita, Jian Chen, Muneo Hori, 2016 .

Simulation of Seismic Wave Propagation and Amplification

Tsuyoshi Ichimura, Kohei Fujita, Muneo Hori, 2016 .

Experimental Study on Influence of Hardening of Isolator in Multiple Isolation Building

Kohei Fujita, Izuru Takewaki, Masaaki Tsuji, 2016, Front. Built Environ..

A Fast 3D Finite-Element Solver for Large-Scale Seismic Soil Liquefaction Analysis

Tsuyoshi Ichimura, Kohei Fujita, Muneo Hori, 2019, ICCS.

Data-Driven Approach to Inversion Analysis of Three-Dimensional Inner Soil Structure via Wave Propagation Analysis

Tsuyoshi Ichimura, Kohei Fujita, Lalith Wijerathne, 2020, ICCS.

Simultaneous optimal damper placement using oil, hysteretic and inertial mass dampers

Kohei Fujita, Izuru Takewaki, Masaaki Tsuji, 2013 .

A Physics-based Monte Carlo Earthquake Disaster Simulation Accounting for Uncertainty in Building Structure Parameters

Tsuyoshi Ichimura, Kohei Fujita, Muneo Hori, 2014, ICCS.

OPTIMIZATION IN DAMPER PLACEMENT FOR INTERSTORY-DRIFT CONTROL OF STRUCTURES

Kohei Fujita, Izuru Takewaki, Kaoru Yamamoto, 2010 .

A spectrum-driven damage identification by minimum constitutive relation error and sparse regularization

Kohei Fujita, Izuru Takewaki, Jia Guo, 2020 .

Modal–Physical Hybrid System Identification of High-rise Building via Subspace and Inverse-Mode Methods

Kohei Fujita, Izuru Takewaki, Yuhei Fujimori, 2017, Front. Built Environ..

Dual hysteretic damper system effective for broader class of earthquake ground motions

Kohei Fujita, Izuru Takewaki, Takuma Shiomi, 2018 .

A Quick Earthquake Disaster Estimation System with Fast Urban Earthquake Simulation and Interactive Visualization

Tsuyoshi Ichimura, Kohei Fujita, Muneo Hori, 2014, ICCS.

Acceleration of unstructured implicit low-order finite-element earthquake simulation using OpenACC on Pascal GPUs

Tsuyoshi Ichimura, Muneo Hori, Kohei Fujita, 2019 .

GPU Implementation of a Sophisticated Implicit Low-Order Finite Element Solver with FP21-32-64 Computation Using OpenACC

Tsuyoshi Ichimura, Kohei Fujita, Lalith Maddegedara, 2019, WACCPD@SC.

Robust Control of Building Structures Under Uncertain Conditions

Kohei Fujita, Izuru Takewaki, 2013 .

Balanced Graph Partition Refinement using the Graph p-Laplacian

Tsuyoshi Ichimura, Kohei Fujita, Takuma Yamaguchi, 2018, PASC.

Development of element-by-element kernel algorithms in unstructured finite-element solvers for many-core wide-SIMD CPUs: Application to earthquake simulation

Tsuyoshi Ichimura, Kohei Fujita, Lalith Maddegedara, 2020, J. Comput. Sci..

Use of Deterministic and Probabilistic Measures to Identify Unfavorable Earthquake Records

Kohei Fujita, Izuru Takewaki, Abbas Moustafa, 2013 .

2043 Strain-based Monitoring of Local Damage in Steel Structures : Part I Concept and Testbed Design

Kohei Fujita, Masahiro Kurata, Liusheng He, 2013 .

Octree-Based Multiple-Material Parallel Unstructured Mesh Generation Method for Seismic Response Analysis of Soil-Structure Systems

Tsuyoshi Ichimura, Kohei Fujita, Muneo Hori, 2016, ICCS.

Physics-Based Urban Earthquake Simulation Enhanced by 10.7 BlnDOF × 30 K Time-Step Unstructured FE Non-Linear Seismic Wave Simulation

Tsuyoshi Ichimura, Kohei Fujita, Muneo Hori, 2014, SC14: International Conference for High Performance Computing, Networking, Storage and Analysis.

Stiffness and Damping Identification for Asymmetric Building Frame With In-plane Flexible Floors

Kohei Fujita, Izuru Takewaki, Shinta Yoshitomi, 2019, Front. Built Environ..

Building earthquake resilience in sustainable cities in terms of input energy

Kohei Fujita, Izuru Takewaki, K. Kojima, 2014 .

20196 Simultaneous Determination of Effective Building Strengthening and Passive Damper Allocation for Improving Earthquake Performance

Kohei Fujita, Izuru Takewaki, Masaaki Tsuji, 2014 .

Advanced System Identification for High-Rise Building Using Shear-Bending Model

Kohei Fujita, Izuru Takewaki, 2016, Front. Built Environ..

Optimal Placement of Hysteretic Dampers via Adaptive Sensitivity-Smoothing Algorithm

Kohei Fujita, Izuru Takewaki, Masaaki Tsuji, 2015 .

Acceleration of unstructured implicit low-order finite-element earthquake simulation using OpenACC on Pascal GPUs

Tsuyoshi Ichimura, Kohei Fujita, Muneo Hori, 2019, Int. J. High Perform. Comput. Netw..

Application of Story-Wise Shear Building Identification Method to Actual Ambient Vibration

Kohei Fujita, Izuru Takewaki, Ayumi Ikeda, 2015, Front. Built Environ..

Data Assimilation in Volcano Deformation Using Fast Finite Element Analysis with High Fidelity Model

Tsuyoshi Ichimura, Kohei Fujita, Muneo Hori, 2020, ICCS.

20166 Robust optimization for damper placement with structural uncertainty using robustness function(2)

Kohei Fujita, Izuru Takewaki, Masaaki Tsuji, 2015 .

Scalable Multicase Urban Earthquake Simulation Method for Stochastic Earthquake Disaster Estimation

Tsuyoshi Ichimura, Kohei Fujita, Muneo Hori, 2015, ICCS.

Development Of Large-Scale Three-Dimensional Seismic Ground Strain Response Analysis Method and Its Application to Tokyo using Full K Computer

Tsuyoshi Ichimura, Kohei Fujita, 2016 .

13011 Questionnaire Investigation for Educational Effect of Structural Analysis Application Taking Advantages of Mobile Terminal Device

Kohei Fujita, Takuya Suzuki, Takuya Kinoshita, 2015 .

Optimal placement of viscoelastic dampers and supporting members under variable critical excitations

Kohei Fujita, Izuru Takewaki, Abbas Moustafa, 2010 .

Matched Filtering Accelerated by Tensor Cores on Volta GPUs With Improved Accuracy Using Half-Precision Variables

Kohei Fujita, Aitaro Kato, Shigeki Nakagawa, 2019, IEEE Signal Processing Letters.

Evolutionary Path-Dependent Damper Optimization for Variable Building Stiffness Distributions

Kohei Fujita, Izuru Takewaki, 2013 .

Unified analysis of kinematic and inertial earthquake pile responses via the single-input response spectrum method

Kohei Fujita, Izuru Takewaki, K. Kojima, 2014 .

Dynamic event-triggered minimal-order observer for linear systems

Kohei Fujita, Toshimitsu Ushio, Kenichi Fukuda, 2016, 2016 Second International Conference on Event-based Control, Communication, and Signal Processing (EBCCSP).

Hybrid Control System for Greater Resilience Using Multiple Isolation and Building Connection

Kohei Fujita, Izuru Takewaki, Masaaki Tsuji, 2016, Front. Built Environ..

Influence of Sensual Similarity of Drug Name on Taking Error

Kohei Fujita, Yoshihiro Hashimoto, Hiroyasu Sato, 2012 .

Fast scalable implicit solver with convergence of equation-based modeling and data-driven learning: earthquake city simulation on low-order unstructured finite element

Naonori Ueda, Tsuyoshi Ichimura, Muneo Hori, 2021, PASC.

Large-Scale Stabilized Multi-physics Earthquake Simulation for Digital Twin

Tsuyoshi Ichimura, Muneo Hori, Kohei Fujita, 2021, ICCS.

152K-computer-node parallel scalable implicit solver for dynamic nonlinear earthquake simulation

Naonori Ueda, Tsuyoshi Ichimura, Muneo Hori, 2022, HPC Asia.

High-Performance Computing Implementations of Agent-Based Economic Models for Realizing 1:1 Scale Simulations of Large Economies

Tsuyoshi Ichimura, Muneo Hori, Kohei Fujita, 2021, IEEE Transactions on Parallel and Distributed Systems.