Conference Papers


2016
  1. S. Azuma, T. Kure, and T. Sugie:
    Structural Bistability Analysis of Boolean Networks,
    55th IEEE Conference on Decision and Control (CDC2016), Las Vegas, December 12-14, pp. XXXX--XXXX (2016)
  2. K. Sato and S. Azuma:
    All Concealing Gaussian Type Controllers for Linear Systems,
    55th IEEE Conference on Decision and Control (CDC2016), Las Vegas, December 12-14, pp. XXXX--XXXX (2016)
  3. S. Izumi, S. Azuma, and T. Sugie:
    On a Relation between Graph Signal Processing and Multi-Agent Consensus,
    55th IEEE Conference on Decision and Control (CDC2016), Las Vegas, December 12-14, pp. XXXX--XXXX (2016)
  4. Y. Kojima, S. Azuma, T. Kitao, I Maruta, and T. Sugie:
    A Packet-Based Energy Management System for Multi-Legged Walking Robots,
    2016 International Symposium on Nonlinear Theory and Its Applications (NOLTA2016), Yugawara, November 27-30, to appear (2016)
  5. H. Ando, S. Azuma, and R. Takahashi:
    A Simulation Study of An Algorithm for Distributing Power Packets in A Network,
    2016 International Symposium on Nonlinear Theory and Its Applications (NOLTA2016), Yugawara, November 27-30, to appear (2016)
  6. K. Sato and S. Azuma:
    Controllability of Aggregate Demand Response Systems for Real-Time Pricing,
    4th IEEE International Conference on Cyber-Physical Systems, Networks, and Applications (CPSNA2016), Nagoya, October 6-7, to appear (2016)
  7. H. Ando, S. Azuma, and R. Takahashi:
    Consensus Dynamics in Switching Networks for Distributing Power Packets,
    6th IFAC Workshop on Distributed Estimation and Control in Networked Systems, September 8-9, to appear (2016)
  8. K. Sata, S. Azuma, and A. Ohata:
    A Study of Numerical Error Caused by Parallelizing Complicated Continuous-Time Models with Dependence on Calculation Order,
    35th Chinese Control Conference, July 27-29, to appear (2016)
  9. N. Imoda, S. Azuma, T. Kitao, and T. Sugie:
    Delta-sigma Conversion of Graph Signals,
    22nd International Symposium on Mathematical Theory of Networks and Systems, Minnesota, July 12-15, to appear (2016)
  10. K. Sata, S. Azuma, and A. Ohata:
    A Parallelized Method for Continuous-Time Models with Dependence on Calculation Order,
    8th IFAC International Symposium on Advances in Automotive Control, Norrkoping, June 19-23, to appear (2016)
  11. T. Kitao, S. Azuma, L. Mostefai, I. Maruta, and T. Sugie:
    Model-Free Position Control of Solar Farms Maximizing Power Generation,
    SICE International Symposium on Control Systems 2016, Nagoya, March 7-10, to appear (2016)
2015
  1. K. Sakurama, S. Azuma, and T. Sugie:
    Distributed Control of Networked Multi-Agent Systems for High-Dimensional Coordination,
    54th IEEE Conference on Decision and Control (CDC2015), Osaka, December 15-18, pp. 5613--5616 (2015)
  2. S. Azuma, T. Yoshida, and T. Sugie:
    Structural Oscillatority Analysis of Boolean Networks,
    54th IEEE Conference on Decision and Control (CDC2015), Osaka, December 15-18, pp. 2865--2868 (2015)
  3. Y. Minami and S. Azuma:
    Prediction Governors: Optimal Solutions and Application to Electric Power Balancing Control,
    54th IEEE Conference on Decision and Control (CDC2015), Osaka, December 15-18, pp. 1126--1129 (2015)
  4. Y. Minami and S. Azuma:
    Feedback Modification of Predicted Demand Information for Power Balancing Control,
    The 34th Chinese Control Conference and SICE Annual Conference 2015 (CCC&SICE2015), Hangzhou, July 28-30, pp. 1059--1062 (2015)
  5. K. Sato and S. Azuma:
    A Design Method for Confidential Control Systems,
    The 34th Chinese Control Conference and SICE Annual Conference 2015 (CCC&SICE2015), Hangzhou, July 28-30, pp. 512 (2015)
  6. K. Sato and S. Azuma:
    A Controller Design Method for Unidentifiable Linear SISO Systems,
    10th Asian Control Conference 2015, Kota Kinabalu, May 31-June 3, pp. 54--59 (2015)
  7. M.A. Ahmad, S. Azuma, and T. Sugie:
    Model-Free Design of Real-Time Pricing Using Simultaneous Perturbation Stochastic Approximation,
    SICE International Symposium on Control Systems 2015, Tokyo, March 4-7, pp. 613-2 (2015)
  8. S. Azuma, T. Nakamoto, S. Izumi, T. Kitao, and I. Maruta:
    Randomized Automated Demand Response for Real-time Pricing,
    6th IEEE PES Conference on Innovative Smart Grid Technologies, Washington, February 17-20, ISGT2015-000083 (2015)
  9. K. Sato and S. Azuma:
    Numerical Studies of Aggregate Demand Response by Real-Time Pricing,
    34th IASTED International Conference on Modelling, Identification and Control, Innsbruck, February 16-18, pp. 131--138 (2015)
  10. T. Kitao, I. Maruta, and S. Azuma:
    Hardware Implementation of Lottery Controllers for Real-time Pricing,
    International Symposium on Artificial Life and Robotics (AROB2015), Beppu, January 21-23, pp. 405--408 (2015)
2014
  1. S. Izumi, S. Azuma, and T. Sugie:
    Real-Time Pricing Based on Networked Estimators,
    53rd IEEE Conference on Decision and Control (CDC2014), Los Angeles, December 15-17, pp. 2441--2446 (2014)
  2. S. Azuma, T. Yoshida, and T. Sugie:
    Structural Monostability of Activation-Inhibition Boolean Networks,
    53rd IEEE Conference on Decision and Control (CDC2014), Los Angeles, December 15-17, pp. 1521--1526 (2014)
  3. M.A. Ahmad, S. Azuma, and T. Sugie:
    Identification of Continuous-time Hammerstein Models Using Simultaneous Perturbation Stochastic Approximation,
    14th International Conference on Control, Automation and Systems (ICCAS2014), Seoul, October 22-25, pp. 1107--1111 (2014)
  4. S. Izumi, S. Azuma, and T. Sugie:
    Coverage Control Inspired by Bacterial Chemotaxis,
    Workshop on Self-organization in Swarm of Robots: from Molecular Robots to Mobile Agents (WSSR2014), Nara, October 6, pp. 34--39 (2014)
  5. S. Azuma, T. Yoshida, and T. Sugie:
    Stability Analysis of Boolean Networks with Partial Information,
    21st International Symposium on Mathematical Theory of Networks and Systems (MTNS2014), Groningen, July 7-11, pp. 1395--1397 (2014)
  6. M.A. Ahmad, S. Azuma, and T. Sugie:
    A Model-Free Approach to Wind Farm Control Using Simultaneous Perturbation Stochastic Approximation,
    21st International Symposium on Mathematical Theory of Networks and Systems (MTNS2014), Groningen, July 7-11, pp. 1352--1355 (2014)
2013
  1. S. Azuma, K. Owaki, N. Shinohara, and T. Sugie:
    Performance Analysis of Chemotaxis Controllers,
    52nd IEEE Conference on Decision and Control (CDC2013), Firenze, December 10-13, pp. 1411--1416 (2013)
  2. K. Sakurama, S. Azuma, and T. Sugie:
    Optimal Distributed Controllers Based on Gradient-flow Method for Multi-Agent Coordination,
    52nd IEEE Conference on Decision and Control (CDC2013), Firenze, December 10-13, pp. 2133--2138 (2013)
  3. K. Kobayashi, I. Maruta, K. Sakurama, and S. Azuma:
    An MDP Approach to Modeling and Control of Real-Time Pricing Systems,
    SICE Annual Conference 2013 (SICE13), Nagoya, September 14-17, pp. 595--600 (2013)
  4. M.A. Ahmad, I. Baba, S. Azuma, and T. Sugie:
    Model Free Tuning of Variable State of Charge Target of Hybrid Electric Vehicles,
    IFAC Symposium on Advances in Automotive Control (AAC), Tokyo, September 4-7, pp. 779--783 (2013)
  5. R. Takahashi, S. Azuma, K. Tashiro, and T. Hikihara:
    Design and Experimental Verification of Power Packet Generation System for Power Packet Dispatching System,
    2013 American Control Conference (ACC13), Washington, DC, June 17-19, pp. 4299--4304 (2013)
  6. S. Izumi, S. Azuma, and T. Sugie:
    Stabilization by Controller Networks,
    2013 American Control Conference (ACC13), Washington, DC, June 17-19, pp. 2276--2281 (2013)
2012
  1. K. Sakurama, S. Azuma, and T. Sugie:
    Parameterization of All Distributed Controllers Based on Gradient-Flow Method for Networked Multi-Agent Systems,
    51st IEEE Conference on Decision and Control (CDC2012), Maui, December 10-13, pp. 5465--5470 (2012)
  2. S. Azuma, I. Baba, and T. Sugie:
    Broadcast Control of Group of Markov Chains,
    51st IEEE Conference on Decision and Control (CDC2012), Maui, December 10-13, pp. 2059--2064 (2012)
  3. S. Azuma, Y. Tanaka, and T. Sugie:
    Multi-Agent Consensus under Communication-Broadcast Mixed Environment,
    51st IEEE Conference on Decision and Control (CDC2012), Maui, December 10-13, pp. 94--99 (2012)
  4. S. Izumi, S. Azuma, and T. Sugie:
    Robotic Mass Games by Distributed Hybrid Controllers,
    4th IFAC Conference on Analysis and Design of Hybrid Systems (ADHS12), Eindhoven, June 6-8, pp. 339--343 (2012)
2011
  1. S. Azuma, R. Yoshimura, and T. Sugie:
    Broadcast Control of Multi-Agent Systems,
    50th IEEE Conference on Decision and Control and European Control Conference (CDC-ECC 2011), Orlando, December 12-15, pp. 3590--3595 (2011)
  2. Y. Minami, S. Azuma, and T. Sugie:
    Halftone Control of Distributed Generation Networks,
    2011 International Symposium on Nonlinear Theory and its Applications (NOLTA2011), Kobe, September 4-7, pp. 128--131 (2011)
  3. R. Morita, S. Azuma, and T. Sugie:
    Performance Analysis of Random Dither Quantizers in Feedback Control Systems,
    18th IFAC World Congress (IFAC11), Milan, August 28-September 2, pp. 11296--11301 (2011)
  4. J. Park, S. Azuma, and T. Sugie:
    Fault-Tolerant Control for LPV Systems Based on Fault Compensator,
    18th IFAC World Congress (IFAC11), Milan, August 28-September 2, pp. 5314--5319 (2011)
2010
  1. S. Azuma, M. Selman Sakar, and G.J. Pappas: 
    Nonholonomic Source Seeking in Switching Random Fields,  
    49th IEEE Conference on Decision and Control (CDC10), Atlanta, December 15-17, pp. 6337--6342 (2010)
  2. R. Morita, Y. Minami, S. Azuma, and T. Sugie:
    ODQLab: A Graphical Software Tool to Design Dynamic Quantizers for Discrete-Valued Input Control,
    2010 IEEE Multi-conference on Systems and Control (MSC10), Yokohama, September 8-10, pp. 1356--1361 (2010)
  3. Y. Minami, S. Azuma, and T. Sugie:
    An Inverse Halftoning Algorithm Based on Super-Resolution Image Reconstruction,
    SICE Annual Conference 2010 (SICE10), Taipei, August 18-21, pp. 1110--1113 (2010)
  4. S. Azuma and G.J. Pappas:
    Discrete Abstraction of Stochastic Nonlinear Systems:
    A Bisimulation Function Approach
    ,
    2010 American Control Conference (ACC10), Baltimore, June 30-July 02, pp. 1035--1040 (2010)
2009
  1. S. Azuma and T. Sugie: 
    An Analytical Solution to Dynamic Quantization Problem of Nonlinear Control Systems,  
    The combined 48th IEEE Conference on Decision and Control and 28th Chinese Control Conference (CDC/CCC), Shanghai, December 16-18, pp. 3914--3919 (2009)
  2. Y. Minami, S. Azuma, and T. Sugie:
    Dynamic Quantizers for SIMO Control Systems with Unstable Zeros: A Multirate-Sampling Based Approach,
    ICROS-SICE International Joint Conference 2009 (ICCAS-SICE 2009), Fukuoka, August 18-21, pp. 4388--4392 (2009)
  3. Y. Minami, S. Azuma, and T. Sugie:
    Optimal Decentralized Dynamic Quantizers for Discrete-Valued Input Control: A Closed Form Solution and Experimental Evaluation,
    2009 American Control Conference (ACC09), St. Louis, June 10-12, pp. 4367--4372 (2009)
  4. R. Chipalkatty, M. Egerstedt, and S. Azuma:
    Multi-Pendulum Synchronization Using Constrained Agreement Protocols,
    Second International Conference on Robot Communication and Coordination (ROBOCOMM 2009), Odense, March 31-April 2, Paper No. 5834 (2009)
2008
  1. S. Azuma and T. Sugie:
    Stability Analysis of Quantized Feedback Systems Including Optimal Dynamic Quantizers,
    47th IEEE Conference on Decision and Control (CDC08), Cancun, December 9-11, pp. 3392--3397 (2008)
  2. Y. Minami, S. Azuma, and T. Sugie:
    Optimal Dynamic Quantizers for 2D Systems with Discrete-Valued Input and Its Application to Generation of Binary Halftone Images,
    17th IFAC World Congress (IFAC08), Seoul, July 6-11, pp. 12498--12503 (2008)
  3. Y. Minami, S. Azuma, and T. Sugie:
    Optimal Design of Decentralized Dynamic Quantizers for Control with Discrete-Valued Signals ,
    International Conference on Informatics Education and Research for Knowledge-Circulating Society (ICKS2008), Kyoto, January 16-17, pp. 165--168 (2008)
2007
  1. S. Azuma and T. Sugie: 
    Linear Programming Based Optimal Dynamic Quantizer Synthesis for Discrete-Valued Input Control,  
    46th IEEE Conference on Decision and Control (CDC07), New Orleans, December 12-14, pp. 2253--2258 (2007)
  2. Y. Minami, S. Azuma, T. Sugie:
    An Optimal Dynamic Quantizer for Feedback Control with Discrete-valued Signal Constraints ,
    46th IEEE Conference on Decision and Control (CDC07), New Orleans, December 12-14, pp. 2259--2264 (2007)
  3. Y. Wardi, X. C. Ding, M. Egerstedt, and S. Azuma:
    On-Line Optimization of Switched-Mode Systems: Algorithms and Convergence Properties,
    46th IEEE Conference on Decision and Control (CDC07), New Orleans, December 12-14, pp. 5005--5010 (2007)
  4. Y. Minami, S. Azuma, and T. Sugie:
    Discrete-Valued Input Control of Crane Systems Using Optimal Dynamic Quantizers,
    SICE Annual Conference 2007, Takamatsu, September 17-20, pp. 1228--1235 (2007)
  5. S. Azuma and T. Sugie:
    An Optimal Dynamic Quantization Scheme for Control With Discrete-Valued Input,
    2007 American Control Conference (ACC07), New York City, July 11-13, pp. 3576--3581 (2007)
  6. Y. Wardi, X.C. Ding, and S. Azuma:
    On-Line Optimization of Switched-Mode Hybrid Dynamical Systems,
    10th International Conference on Hybrid Systems: Computation and Control (HSCC07), Pisa, April 3-5, pp. 771--774 (2007)
2006
  1. S. Azuma, J. Imura, and T. Sugie:
    Lebesgue Piecewise Affine Approximation of Nonlinear Systems and Its Application to Hybrid System Modeling of Biosystems,
    45th IEEE Conference on Decision and Control (CDC06), San Diego, December 13-15, pp. 2128--2133 (2006)
  2. S. Azuma and J. Imura:
    Probabilistic Controllability Analysis of Piecewise Affine Systems,
    2006 International Symposium on Nonlinear Theory and its Applications (NOLTA2006), Bologna, September 11-14, pp. 267--270 (2006)
  3. S. Azuma, E. Yanagisawa, and J. Imura:
    Probabilistic Approach to Controllable State Set Problem of Hybrid Systems and Its Application to Luminescence Bacterium,
    17th International Symposium on Mathematical Theory of Networks and Systems (MTNS2006), Kyoto, July 24-28, pp. 375--380 (2006)
  4. S. Azuma and J. Imura:
    Polynomial-Time Randomized Algorithm for Controllability Analysis of Piecewise Affine Systems,
    5th IFAC Symposium on Robust Control Design (ROCOND2006), Toulouse, July 5-7 (2006)
  5. S. Azuma, M. Egerstedt, and Y. Wardi:
    Output-Based Optimal Timing Control of Switched Systems,
    Hybrid Systems: Computation and Control (ISBN: 3-540-33170-0, Proceedings of The Ninth International Workshop on Hybrid Systems : Computation and Control), Lecture Notes in Computer Science 3927, J. Hespanha and A. Tiwari, eds., Springer, pp. 64-78 (2006)
2005
  1. S. Azuma and J. Imura:
    Polynomial-Time Probabilistic Observability Analysis of Sampled-Data Piecewise Affine Systems,
    44th IEEE Conference on Decision and Control and European Control Conference ECC 2005 (CDC-ECC05), Seville, December 12-15, pp. 6644--6649 (2005)
  2. E. Yanagisawa, S. Azuma, and J. Imura:
    Controllability Analysis for Gene Regulation Networks and Its Application to Luminescence Bacterium,
    Algebraic Biology 2005- Computer Algebra in Biology, H. Anai and K. Horimoto, eds., Universal Academy Press, Tokyo, pp. 51--60 (2005)
    (ISBN: 4-946443-95-9, ISSN: 1880-6694, Proceedings of 1st International Conference on Algebraic Biology - Computer Algebra in Biology, Tokyo, November 28-30, 2005)
  3. E. Yanagisawa, S. Azuma, and J. Imura:
    Probabilistic Controllability Analysis of Hybrid Systems and its Application to Luminescence Bacterium Vibrio fischeri,
    SICE Annual Conference 2005, Okayama, August 8-10, pp. 3449--3453 (2005)
  4. M. Ji, S. Azuma, and M. Egerstedt:
    Assignment Problems in Multi-Agent Robotics,
    The 2nd COE Workshop on Human Adaptive Mechatronics (HAM), Saitama, March 4-5, pp. 237--240 (2005)
2004
  1. S. Azuma and J. Imura:
    A Probabilistic Approach to Controllability/Reachability Analysis of Hybrid Systems,
    43rd IEEE Conference on Decision and Control (CDC04), Bahamas, December 14-17, pp. 485--490 (2004)
  2. S. Azuma and J. Imura:
    Probabilistic Controllability Analysis of Sampled-Data/Discrete-Time Piecewise Affine Systems,
    2004 American Control Conference (ACC04), Boston, June 30-July 2, pp. 2528--2533 (2004)
2003
  1. S. Azuma and J. Imura:
    Optimal Control of Sampled-Data Piecewise Affine Systems and Its Application to CPU Processing Control,
    42nd IEEE Conference on Decision and Control (CDC03), Maui (Hawaii), December 9-12, pp. 161--166 (2003)
  2. S. Azuma and J. Imura:
    Controllability of Sampled-Data Piecewise Affine Systems,
    IFAC Conference on Analysis and Design of Hybrid Systems (ADHS03), Saint-Malo, June 16-18, pp. 129--134 (2003)