====== Hideaki IIDUKA ====== Professor, Department of Computer Science, Meiji University\\ [[https://orcid.org/0000-0001-9173-6723|My ORCID iD]] [[http://www.ams.org/mathscinet/search/author.html?mrauthid=718183|MathSciNet]] [[https://scholar.google.co.jp/citations?user=jr5sK30AAAAJ&hl=ja&oi=ao|Google Scholar]] [[https://dblp.org/pid/48/8221.html|dblp]] [[https://publons.com/researcher/3406272/hideaki-iiduka/|Publons]] {{:iiduka:2016.12.02.jpg?200x200|飯塚 秀明}} /*{{:iiduka:pct373520130516123628.jpg?200x200|Hideaki Iiduka}}*/ {{:iiduka:tower.jpg?200x200|}} My photo (LS) and tower made by my son ===== Research Interest ===== Convex and nonconvex optimization, Distributed optimization, Fixed point theory, Optimal control, Network resource allocation, Machine learning Please see [[en:intro:researches|Research]] page for the details of the previously reported results. You can get the PDF files of our papers from [[en:intro:publications|Publications]] page! ===== Reward and Punishment ===== * Fellow of ORSJ (Mar. 2, 2021) * The 9th Research Award (ORSJ, Sept. 12, 2019) * The 4th Research Encourage Award (ORSJ, Aug. 28, 2014) ===== Editorial Board ===== * [[http://yokohamapublishers.jp/pafa.html|Pure and Applied Functional Analysis]] (2024--) * [[https://tulipa-os.com/oper/oper.php|Optimization Eruditorum]] (2024--) * [[https://link.springer.com/journal/11075|Numerical Algorithms]] (2019--) * [[https://www.mdpi.com/journal/electronics|Electronics]] (2019--) * [[http://asvao.biemdas.com/|Applied Set-Valued Analysis and Optimization]] (2019--) * [[https://atnaa.wordpress.com/|Advances in the Theory of Nonlinear Analysis and its Applications]] (2018--) * [[http://jnfa.mathres.org/|Journal of Nonlinear Functional Analysis]] (2017--) * [[http://www.ybook.co.jp/|Pacific Journal of Optimization]] (2016--) * [[http://www.jyotiacademicpress.org/jyotic/journalview/35|International Journal of Statistics: Advances in Theory and Applications]] (2016--2018) * [[http://www.ybook.co.jp/|Linear and Nonlinear Analysis]] (2015–) * [[http://jfpt.mathres.org/|Journal of Fixed Point Theory]] (2013--) * [[http://www.hindawi.com/journals/tswj/|The Scientific World Journal]] (2013--2016) * [[http://www.springer.com/mathematics/computational+science+%26+engineering/journal/12190|Journal of Applied Mathematics and Computing]] (2013--) * Algorithm Letters (2012--) ===== Committee ===== * International Program Committee: [[https://acfpto2025.pythonanywhere.com/|12th Asian Conference on Fixed Point Theory and Optimization 2025 (ACFPTO2025)]] (2025) * International Program Committee: [[https://tacs-coe.com/the-11th-asian-conference-on-fixed-point-theory-and-optimization-2023-acfpto2023-at-a-one-the-royal-cruise-hotel-pattaya-thailand-august-2-5-2023/|11th Asian Conference on Fixed Point Theory and Optimization 2023 (ACFPTO2023)]] (2023) * Scientific Committee of [[http://wgnaca.org/naca-icota2019/|International Conference on Nonlinear Analysis and Convex Analysis and International Conference on Optimization: Techniques and Applications (NACA-ICOTA2019)]] (2019) * Program Committee of [[http://wgnaca.org/nao2018/|6th Conference on Nonlinear Analysis and Optimization (NAO-Asia 2018)]] (2018) * Program Committee of [[http://icota2016.weebly.com/|10th International Conference on Optimization: Techniques and Applications (ICOTA 10)]] (2016) * Program Committee of [[http://oca2015.csp.escience.cn/dct/page/1|6th International Conference on Optimization and Control with Applications (OCA 2015)]] (2015) * Program Committee of International Symposium on Intelligent Informatics (2013--) * Program Committee of The Workshop on Computational Optimization (2010--) * Program Committee of The Workshop on Information Network Design (2009--) ===== Publications in Refereed Journals ===== *2013-- Please see [[en:intro:publications|Publications]] page. *2012 - H. Iiduka and I. Yamada: **Computational Method for Solving a Stochastic Linear-Quadratic Control Problem Given an Unsolvable Stochastic Algebraic Riccati Equation**, //SIAM Journal on Control and Optimization, Vol. 50, No. 4, pp. 2173-2192, 2012.// - H. Iiduka: **Iterative Algorithm for Triple-Hierarchical Constrained Nonconvex Optimization Problem and Its Application to Network Bandwidth Allocation**, //SIAM Journal on Optimization, Vol. 22, No. 3, pp. 862-878, 2012.// - H. Iiduka and Y. Narushima: **Conjugate Gradient Methods Using Value of Objective Function for Unconstrained Optimization**, //Optimization Letters, Vol. 6, No. 5, pp. 941-955, 2012.// - H. Iiduka: **Fixed Point Optimization Algorithm and Its Application to Power Control in CDMA Data Networks**, //Mathematical Programming, Vol. 133, No.1, pp. 227-242, 2012.// - H. Iiduka: **Unicast Decentralized Algorithm for Solving Centralized Optimization Problems in Network Resource Allocation**, //Journal of Nonlinear and Convex Analysis, Vol. 13, No. 1, pp. 31-48, 2012.// - H. Iiduka: **Fixed Point Optimization Algorithm and Its Application to Network Bandwidth Allocation**, //Journal of Computational and Applied Mathematics, Vol. 236, No. 7, pp. 1733-1742, 2012.// *2011 - H. Iiduka: **Decentralized Algorithm for Centralized Variational Inequalities in Network Resource Allocation**, //Journal of Optimization Theory and Applications, Vol. 151, No. 3, pp. 525-540, 2011.// - H. Iiduka and M. Uchida: **Fixed Point Optimization Algorithms for Network Bandwidth Allocation Problems with Compoundable Constraints**, //IEEE Communications Letters, Vol. 15, No. 6, pp. 596-598, 2011.// - H. Iiduka: **Iterative Algorithm for Solving Triple-hierarchical Constrained Optimization Problem**, //Journal of Optimization Theory and Applications, Vol. 148, No. 3, pp. 580-592, 2011.// - H. Iiduka: **Three-term Conjugate Gradient Method for the Convex Optimization Problem over the Fixed Point Set of a Nonexpansive Mapping**, //Applied Mathematics and Computation, Vol. 217, No. 13, pp. 6315-6327, 2011.// *2010 - H. Iiduka: **A New Iterative Algorithm for the Variational Inequality Problem over the Fixed Point Set of a Firmly Nonexpansive Mapping**, //Optimization, Vol. 59, No. 6, pp. 873-885, 2010.// - H. Iiduka: **On an Ergodic Iteration Method for the Convex Optimization Problem over the Fixed Point Set**, //Pacific Journal of Optimization, Vol. 6, No. 1, pp. 187-199, 2010.// *2009 - H. Iiduka: **Strong Convergence for an Iterative Method for the Triple-hierarchical Constrained Optimization Problem**, //Nonlinear Analysis: Theory, Methods & Applications, Vol. 71, No. 12, pp. 1292-1297, 2009.// - H. Iiduka and I. Yamada: **A Subgradient-type Method for the Equilibrium Problem over the Fixed Point Set and its Applications**, //Optimization, Vol. 58, No. 2, pp. 251-261, 2009.// - H. Iiduka and I. Yamada: **A Use of Conjugate Gradient Direction for the Convex Optimization Problem over the Fixed Point Set of a Nonexpansive Mapping**, //SIAM Journal on Optimization, Vol. 19, No. 4, pp. 1881-1893, 2009.// - H. Iiduka: **Hybrid Conjugate Gradient Method for a Convex Optimization Problem over the Fixed-point Set of a Nonexpansive Mapping**, //Journal of Optimization Theory and Applications, Vol. 140, No. 3, pp. 463-475, 2009.// - H. Iiduka and I. Yamada: **An Ergodic Algorithm for the Power-control Games for CDMA Data Networks**, //Journal of Mathematical Modelling and Algorithms, Vol. 8, No. 1, pp. 1-18, 2009.// *2008-2004 - H. Iiduka and W. Takahashi: **Weak Convergence of a Projection Algorithm for Variational Inequalities in a Banach Space**, //Journal of Mathematical Analysis and Applications, Vol. 339, No. 1, pp. 668-679, 2008.// - H. Iiduka and W. Takahashi: **Strong Convergence Studied by a Hybrid Type Method for Monotone Operators in a Banach Space**, //Nonlinear Analysis: Theory, Methods & Applications, Vol. 68, No. 12, pp. 3679-3688, 2008.// - K. Aoyama, H. Iiduka, and W. Takahashi: **Strong Convergence of Halpern's Sequence for Accretive Operators in a Banach Space**, //PanAmerican Mathematical Journal, Vol. 17, No. 3, pp. 75-89, 2007.// - K. Aoyama, H. Iiduka, and W. Takahashi: **Weak Convergence of an Iterative Sequence for Accretive Operators in Banach Spaces**, //Fixed Point Theory and Applications, Volume 2006, Article ID 35390, 13 pages, 2006.// - H. Iiduka and W. Takahashi: **Weak Convergence Theorems by Cesaro Means for Nonexpansive Mappings and Inverse-strongly-monotone Mappings**, //Journal of Nonlinear and Convex Analysis, Vol. 7, No. 1, pp. 105-113, 2006.// - H. Iiduka and W. Takahashi: **Strong Convergence Theorem by a Hybrid Method for Nonlinear Mappings of Nonexpansive and Monotone Type and Applications**, //Advances in Nonlinear Variational Inequalities, Vol. 9, No. 1, pp. 1-10, 2006.// - H. Iiduka and W. Takahashi: **Strong Convergence Theorems for Nonexpansive Mappings and Inverse-strongly Monotone Mappings**, //Nonlinear Analysis: Theory, Methods & Applications, Vol. 61, No. 3, pp. 341-350, 2005.// - H. Iiduka and W. Takahashi: **Strong Convergence Theorems for Nonexpansive Nonself-mappings and Inverse-strongly Monotone Mappings**, //Journal of Convex Analysis, Vol. 11, No. 1, pp. 69-79, 2004.// - H. Iiduka, W. Takahashi, and M. Toyoda: **Approximation of Solutions of Variational Inequalities for Monotone Mappings**, //PanAmerican Mathematical Journal, Vol. 14, No. 2, pp. 49-61, 2004.// ===== Conference Proceedings ===== - H. Iiduka: **Projection Method for Variational Inequality Problems for Monotone Operators**, //Asian Conference on Nonlinear Analysis and Optimization (W. Takahashi Ed.), Yokohama Publishers, pp. 87-95, 2009.// - H. Iiduka and W. Takahashi: **Relations between Equations of Set-valued Operators and Equilibrium Problems**, //Nonlinear Analysis and Convex Analysis (W. Takahashi and T. Tanaka Eds.), Yokohama Publishers, pp. 163-172, 2007.// - H. Iiduka and W. Takahashi: **Strong and Weak Convergence Theorems by a Hybrid Steepest Descent Method in a Hilbert Space**, //Nonlinear Analysis and Convex Analysis (W. Takahashi and T. Tanaka Eds.), Yokohama Publishers, pp. 115-130, 2004.// - H. Iiduka and W. Takahashi: **Strong Convergence Theorems by a Hybrid Method for Nonexpansive Mappings and Inverse-strongly Monotone Mappings**, //Fixed Point Theory and Applications (J. G. Falset, E. L. Fuster, and B. Sims Eds.), Yokohama Publishers, pp. 81-94, 2004.// ===== Invited Talks ===== - H. Iiduka: **Decentralized optimization and its applications**, //The 6th Asian Conference on Nonlinear Analysis and Optimization, ANA Intercontinental Manza Beach Resort, Okinawa, Japan, November 6, 2018.// - H. Iiduka: **Nonsmooth Convex Optimization with Fixed Point Constraints and Its Applications**, //The 29th RAMP (Research Association of Mathematical Programming) Symposium, University of Tsukuba, Ibaraki, Japan, October 12-13, 2017.// - H. Iiduka, M. Uchida, M. Tsuru, and K. Kakuda: **Proportional Fair Scheduler Using Conjugate Gradient Directions in Multi-carrier System**, //The 21th RAMP (Research Association of Mathematical Programming) Symposium, Kunibiki Messe, Matue, Japan, September 24-25, 2009.// - H. Iiduka: **Iterative Methods for Variational Inequality Problems over Fixed Point Sets**, //Tokyo Institute of Technology Global COE Program CompView Symposium 2008, Tokyo Institute of Technology, Tokyo, Japan, December 2-4, 2008.// - H. Iiduka: **Iterative Algorithms for the Hierarchical Optimization Problem**, //Fifth World Congress of Nonlinear Analysts (V. Lakshmikantham Ed.), Hyatt Grand Cypress Resort in Orlando, Florida, USA, July 2-9, 2008. // ===== Membership ===== * SIAM (Society for Industrial and Applied Mathematics) * MOS (Mathematical Optimization Society) * ORSJ (Operations Research Society of Japan) ===== Education ===== * Ph.D., Department of Mathematical and Computing Sciences, Tokyo Institute of Technology, 2005. ===== Employment ===== * Research Associate, Department of Mathematical and Computing Sciences, Tokyo Institute of Technology (April, 2005--March, 2007) * Research Fellow of the Japan Society for the Promotion of Science (PD), Communications and Integrated Systems, Tokyo Institute of Technology (April, 2007--September, 2008) * Associate Professor, Network Design Research Center, Kyushu Institute of Technology (October, 2008--March, 2013) * Associate Professor, Department of Computer Science, Meiji University (April, 2013--March, 2019) * Professor, Department of Computer Science, Meiji University (April, 2019--)