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            Verification Experiment of Data-driven Dynamic Quantizer
            
            
            
            
            
            
          
          
            Yuji YOSHIDA, Yuki MINAMI, Masato ISHIKAWA, Yusuke FUJIMOTO
          
          
            Transactions of the Society of Instrument and Control Engineers Vol. 61 No. 8 p. 375-383 2025/08 Research paper (scientific journal)
          
          
          Publisher: The Society of Instrument and Control Engineers 
           
         
        
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            Data-driven Feedforward Controller Tuning Method with Convex Optimization and Its Application
            
            
            
            
            
            
          
          
            Kento NAKAGAKI, Yusuke FUJIMOTO
          
          
            Transactions of the Society of Instrument and Control Engineers Vol. 61 No. 8 p. 384-389 2025/08 Research paper (scientific journal)
          
          
          Publisher: The Society of Instrument and Control Engineers 
           
         
        
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            Iterative Inversion Control that Monotonically Decreases Tracking Error
            
            
            
            
          
          
            Shuya TSURUDA, Yusuke FUJIMOTO
          
          
            Transactions of the Society of Instrument and Control Engineers Vol. 61 No. 8 p. 390-395 2025 Research paper (scientific journal)
          
          
          Publisher: The Society of Instrument and Control Engineers 
           
         
        
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            Cyclic Reformulation-Based System Identification for Periodically Time-Varying Systems
            
            
            
            
            
            
          
          
            Hiroshi Okajima, Yusuke Fujimoto, Hiroshi Oku, Haruto Kondo
          
          
            IEEE Access Vol. 13 p. 26483-26493 2025 Research paper (scientific journal)
          
          
          Publisher: Institute of Electrical and Electronics Engineers (IEEE) 
           
         
        
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            Efficient Implementation of Kernel Regularization Based on ADMM and Its Application to Room Impulse Response Estimation
            
            
            
            
            
            
          
          
            Yusuke Fujimoto, Yuki Okamoto, Ken Takaki
          
          
            IEEE Access Vol. 12 p. 152721-152729 2024/10 Research paper (scientific journal)
          
          
          Publisher: Institute of Electrical and Electronics Engineers (IEEE) 
           
         
        
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            Iterative learning control with inverse model updated with quadratic optimization
            
            
            
            
            
            
          
          
            Yusuke Fujimoto
          
          
            Systems & Control Letters Vol. 188 p. 105797-105797 2024/06 Research paper (scientific journal)
          
          
          Publisher: Elsevier BV 
           
         
        
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            Joint input–output identification of unstable systems with kernel regularization
            
            
            
            
          
          
            Yusuke Fujimoto, Toshiharu Sugie
          
          
            Control Theory and Technology Vol. 22 No. 2 p. 195-202 2024/05/02 Research paper (scientific journal)
          
          
          Publisher: Springer Science and Business Media LLC 
           
         
        
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            Joint input–output identification of unstable systems with kernel regularization
            
            
            
            
          
          
            Yusuke Fujimoto, Toshiharu Sugie
          
          
            Control Theory and Technology Vol. 22 No. 2 p. 195-202 2024/05/02 Research paper (scientific journal)
          
          
          Publisher: Springer Science and Business Media LLC 
           
         
        
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            Surface Estimation from Aerial Laser Scanning Data with Non-parametric Piecewise Affine Model and Its Application
            
            
            
            
          
          
            Yusuke FUJIMOTO
          
          
            Transactions of the Society of Instrument and Control Engineers Vol. 60 No. 4 p. 337-344 2024/04 Research paper (scientific journal)
          
          
          Publisher: The Society of Instrument and Control Engineers 
           
         
        
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            PROPOSAL OF OPTIMAL CONTROL METHOD FOR TABS USING MPC
            
            
            
            
            
            
          
          
            Kiyoto KOGA, Yasuyuki SHIRAISHI, Yusuke FUJIMOTO
          
          
            Journal of Environmental Engineering (Transactions of AIJ) Vol. 89 No. 817 p. 141-146 2024/03/01 Research paper (scientific journal)
          
          
          Publisher: Architectural Institute of Japan 
           
         
        
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            Categorization of Data-driven Feedback Tuning Methods: Forward, Inverse, and Factorization approaches
            
            
            
            
            
            
          
          
            Yusuke Fujimoto
          
          
            IFAC-PapersOnLine Vol. 56 No. 2 p. 10150-10154 2023/07 Research paper (international conference proceedings)
          
          
          Publisher: Elsevier BV 
           
         
        
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            Data-driven Feedforward Input Design for Optimal Servosystem with Input Constraint
            
            
            
            
            
            
          
          
            Takahiro KOZONO, Yusuke FUJIMOTO
          
          
            Transactions of the Society of Instrument and Control Engineers Vol. 59 No. 3 p. 153-161 2023 Research paper (scientific journal)
          
          
          Publisher: The Society of Instrument and Control Engineers 
           
         
        
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            Kernel-Based Regularization for Unstable Systems
            
            
            
            
            
            
          
          
            Yusuke Fujimoto
          
          
            Proceedings of 2022 IEEE 61st Conference on Decision and Control (CDC) p. 209-214 2022/12 Research paper (international conference proceedings)
          
          
          Publisher: IEEE 
           
         
        
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            Kernel Function Specialized for Controller Tuning via Bayesian Optimization
            
            
            
            
            
            
          
          
            Hiroki SATO, Yusuke FUJIMOTO
          
          
            Transactions of the Society of Instrument and Control Engineers Vol. 58 No. 11 p. 505-511 2022/11 Research paper (scientific journal)
          
          
          Publisher: The Society of Instrument and Control Engineers 
           
         
        
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            On Equivalence between DD-CLUT and Suboptimal VRFT
            
            
            
            
            
            
          
          
            Hiroki SATO, Yusuke FUJIMOTO
          
          
            Transactions of the Society of Instrument and Control Engineers Vol. 58 No. 6 p. 314-316 2022/06 Research paper (scientific journal)
          
          
          Publisher: The Society of Instrument and Control Engineers 
           
         
        
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            Controller tuning with Bayesian optimization and its acceleration: Concept and experimental validation
            
            
            
            
          
          
            Yusuke Fujimoto, Hiroki Sato, Masaaki Nagahara
          
          
            Asian Journal of Control 2022/05 Research paper (scientific journal)
          
          
          Publisher: Wiley 
           
         
        
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            Estimated Response Iterative Tuning with signal projection
            
            
            
            
            
            
          
          
            Yusuke Fujimoto
          
          
            IFAC Journal of Systems and Control Vol. 19 p. 100179-100179 2022/03 Research paper (scientific journal)
          
          
          Publisher: Elsevier BV 
           
         
        
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            Experimental Validation of ERIT with Impulse Response Representation
            
            
            
            
            
            
          
          
            Taishi ASO, Yusuke FUJIMOTO
          
          
            Transactions of the Society of Instrument and Control Engineers Vol. 58 No. 3 p. 141-148 2022/03 Research paper (scientific journal)
          
          
          Publisher: The Society of Instrument and Control Engineers 
           
         
        
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            Kernel Regularization for Low-Frequency Decay Systems
            
            
            
            
            
            
          
          
            Yusuke Fujimoto
          
          
            Proceedings of the 60th IEEE Conference Decision and Control 2021/12 Research paper (international conference proceedings)
          
          
          
            
            
              
        
 
         
        
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            Iterative Learning Control Not to Interfere with Feedback Control
            
            
            
            
            
            
          
          
            Yusuke Fujimoto
          
          
            Proceedings of the 3rd IFAC Conference on Modelling, Identification, and Control of Nonlinear Systems p. 486-489 2021/09 Research paper (international conference proceedings)
          
          
          
            
            
              
        
 
         
        
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            Kernel Function Specialized for Controller Tuning via Bayesian Optimization
            
            
            
            
            
            
          
          
            Yusuke Fujimoto, Hiroki Sato
          
          
            Proceedings of the SICE Annual Conference 2021 p. 391-393 2021/09 Research paper (international conference proceedings)
          
          
          
            
            
              
        
 
         
        
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            Efficient Implementation of Kernel Regularization based on ADMM
            
            
            
            
            
            
          
          
            Yusuke Fujimoto
          
          
            Proceedings of the 19th IFAC Symposium on System Identification p. 473-477 2021/07 Research paper (international conference proceedings)
          
          
          
            
            
              
        
 
         
        
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            LPV-FIR Modeling of Wheelchair Dynamics and Its Application to Model Predictive Control
            
            
            
            
            
            
          
          
            Tatsuki TOKUSHIGE, Yusuke FUJIMOTO, Masaaki NAGAHARA
          
          
            Transactions of the Society of Instrument and Control Engineers Vol. 57 No. 3 p. 156-161 2021/03 Research paper (scientific journal)
          
          
          Publisher: The Society of Instrument and Control Engineers 
           
         
        
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            Kernel Regularization in Frequency Domain: Encoding High-Frequency Decay Property
            
            
            
            
            
            
          
          
            Yusuke Fujimoto
          
          
            IEEE Control Systems Letters Vol. 6 No. 1 p. 367-372 2021/01 Research paper (scientific journal)
          
          
          
            
            
              
        
 
         
        
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            PID Controller Tuning with Bayesian Optimization and Its Acceleration
            
            
            
            
            
            
          
          
            Yusuke Fujimoto, Hiroki Sato, Masaaki Nagahara
          
          
            Proceedings of the SICE Annual Conference 2020 p. 1341-1342 2020/09/23 Research paper (international conference proceedings)
          
          
          
            
            
              
        
 
         
        
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            Time-Frequency Regularization for Impulse Response Estimation
            
            
            
            
            
            
          
          
            Yusuke Fujimoto
          
          
            2020 59th Annual Conference of the Society of Instrument and Control Engineers of Japan (SICE) p. 1329-13332 2020/09 Research paper (international conference proceedings)
          
          
          
            
            
              
        
 
         
        
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            Bayesian LPV-FIR Identification of Wheelchair Dynamics and Its Application to Feedforward Control
            
            
            
            
            
            
          
          
            Yusuke FUJIMOTO, Tatsuki TOKUSHIGE, Masaaki NAGAHARA
          
          
            SICE Journal of Control, Measurement, and System Integration Vol. 13 No. 4 p. 208-213 2020/07 Research paper (scientific journal)
          
          
          Publisher: The Society of Instrument and Control Engineers 
           
         
        
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            Bayesian LPV-FIR Identification of Wheelchair Dynamics
            
            
            
            
            
            
          
          
            Yusuke Fujimoto, Tatsuki Tokushige, Masaaki Nagahara
          
          
            2019 58th Annual Conference of the Society of Instrument and Control Engineers of Japan (SICE) p. 1036-1039 2019/09 Research paper (international conference proceedings)
          
          
          Publisher: IEEE 
           
         
        
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            Room Impulse Response Estimation with Kernel-Based Regularization
            
            
            
            
            
            
          
          
            Yusuke Fujimoto, Fumika Abe, Masaaki Nagahara
          
          
            2019 58th Annual Conference of the Society of Instrument and Control Engineers of Japan (SICE) p. 528-531 2019/09 Research paper (international conference proceedings)
          
          
          Publisher: IEEE 
           
         
        
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            Controller Tuning Based on Bayesian Optimization
            
            
            
            
            
            
          
          
            Yuichiro NAKANO, Yusuke FUJIMOTO, Toshiharu SUGIE
          
          
            Transactions of the Society of Instrument and Control Engineers Vol. 55 No. 4 p. 269-274 2019/04 Research paper (scientific journal)
          
          
          Publisher: The Society of Instrument and Control Engineers 
           
         
        
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            Update of Feedforward Compensation with Experimental Data based on Kernel Regularized Identification
            
            
            
            
            
            
          
          
            Yusuke Fujimoto, Wataru Kasai, Toshiharu Sugie
          
          
            IFAC-PapersOnLine Vol. 51 No. 15 p. 192-196 2018/10 Research paper (international conference proceedings)
          
          
          Publisher: Elsevier BV 
           
         
        
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            Kernel-Based Impulse Response Estimation With a Priori Knowledge on the DC Gain
            
            
            
            
            
            
          
          
            Yusuke Fujimoto, Toshiharu Sugie
          
          
            IEEE Control Systems Letters Vol. 2 No. 4 p. 713-718 2018/10 Research paper (scientific journal)
          
          
          
            
            
              
        
 
         
        
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            Input Design for Kernel-Based System Identification from the Viewpoint of Frequency Response
            
            
            
            
            
            
          
          
            Yusuke Fujimoto, Ichiro Maruta, Toshiharu Sugie
          
          
            IEEE Transactions on Automatic Control Vol. 63 No. 9 p. 3075-3082 2018/09 Research paper (scientific journal)
          
          
          
            
            
              
        
 
         
        
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            Informative Input Design for Bayesian Identification of LPV Systems
            
            
            
            
            
            
          
          
            Yusuke Fujimoto, Wataru Kasai, Toshiharu Sugie
          
          
            SICE Journal of Control, Measurement, and System Integration Vol. 11 No. 3 p. 214-220 2018/05 Research paper (scientific journal)
          
          
          
            
            
              
        
 
         
        
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            Informative input design for Kernel-Based system identification
            
            
            
            
            
            
          
          
            Yusuke Fujimoto, Toshiharu Sugie
          
          
            Automatica Vol. 89 p. 37-43 2018/03/01 Research paper (scientific journal)
          
          
          Publisher: Elsevier Ltd 
           
         
        
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            Goal-oriented input design for Kernel-Based system identification
            
            
            
            
            
            
          
          
            Yusuke Fujimoto, Toshiharu Sugie
          
          
            2017 IEEE 56th Annual Conference on Decision and Control, CDC 2017 Vol. 2018- p. 3398-3402 2018/01/18 Research paper (international conference proceedings)
          
          
          Publisher: Institute of Electrical and Electronics Engineers Inc. 
           
         
        
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            Extension of First-Order Stable Spline Kernel to Encode Relative Degree
            
            
            
            
            
            
          
          
            Yusuke Fujimoto, Ichiro Maruta, Toshiharu Sugie
          
          
            IFAC-PapersOnLine Vol. 50 No. 1 p. 14016-14021 2017/07/01 Research paper (scientific journal)
          
          
          Publisher: Elsevier B.V. 
           
         
        
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            On a Relationship between Integral Compensation and Stochastic Gradient Descent
            
            
            
            
            
            
          
          
            Yusuke Fujimoto, Ichiro Maruta, Toshiharu Sugie
          
          
            2017 56TH ANNUAL CONFERENCE OF THE SOCIETY OF INSTRUMENT AND CONTROL ENGINEERS OF JAPAN (SICE) p. 343-343 2017 Research paper (international conference proceedings)
          
          
          
            
            
              
        
 
         
        
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            Informative Input Design for Kernel-Based System Identification
            
            
            
            
            
            
          
          
            Yusuke Fujimoto, Toshiharu Sugie
          
          
            2016 IEEE 55TH CONFERENCE ON DECISION AND CONTROL (CDC) p. 4636-4639 2016 Research paper (international conference proceedings)
          
          
          
            
            
              
        
 
         
        
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            Synthesis of non-parametric type controllers based on I/O data from closed-loop experiment
            
            
            
            
            
            
          
          
            Yusuke Fujimoto, Ichiro Maruta, Toshiharu Sugie
          
          
            2015 54TH ANNUAL CONFERENCE OF THE SOCIETY OF INSTRUMENT AND CONTROL ENGINEERS OF JAPAN (SICE) p. 683-688 2015 Research paper (international conference proceedings)
          
          
          
            
            
              
        
 
         
        
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            Construction of Non-parametric PWA Models with Estimated Hessian
            
            
            
            
          
          
            FUJIMOTO Yusuke, MARUTA Ichiro, SUGIE Toshiharu
          
          
            Transaction of SICE Vol. 51 No. 3 p. 197-205 2015
          
          
          Publisher: 公益社団法人 計測自動制御学会 
           
         
        
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            Data-driven Control Using Non-parametric Representation
            
            
            
            
          
          
            FUJIMOTO Yusuke, MARUTA Ichiro, SUGIE Toshiharu
          
          
            Transaction of SICE Vol. 51 No. 12 p. 829-835 2015
          
          
          Publisher: 公益社団法人 計測自動制御学会 
           
         
        
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            ノンパラメトリック区分的アフィンモデルのl₁最適化に基づく単純化 (SCI'13論文特集号(3))
            
            
            
            
          
          
            藤本 悠介, 丸田 一郎, 杉江 俊治
          
          
            システム制御情報学会論文誌 = Transactions of the Institute of Systems, Control and Information Engineers Vol. 27 No. 4 p. 141-148 2014/04
          
          
          Publisher: システム制御情報学会 
           
         
        
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            Error bound analysis and optimal construction of non-parametric PWA models
            
            
            
            
            
            
          
          
            Yusuke Fujimoto, Ichiro Maruta, Toshiharu Sugie
          
          
            2014 IEEE 53RD ANNUAL CONFERENCE ON DECISION AND CONTROL (CDC) p. 6528-6535 2014 Research paper (international conference proceedings)
          
          
           
         
        
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            Optimal distance function for locally weighted average prediction of Just-in-Time Methods
            
            
            
            
            
            
          
          
            Yusuke Fujimoto, Ichiro Maruta, Toshiharu Sugie
          
          
            Asian Journal of Control Research paper (scientific journal)