1. Rikuto Shibutani, Takayuki Kimura, and Nobuhiko Itoh, “Optimizing Last-Mile Delivery with Time Windows and Multiple Deliverymen,” Proc. of International Symposium on Nonlinear Theory and Its Applications, pp.xxx-xxx, 2025.

2. Ayaka Nakazawa, Fuya Kumagai, Takafumi Matsuura, and Takayuki Kimura, "Robustness evaluation of visibility graph-based time series segmentation

method under noise conditions," Proc. of International Symposium on Nonlinear Theory and Its Applications, pp.xxx-xxx, 2025.

3. Takeshi Nakano, Nozomi Kotake, Takafumi Matsuura, and Takayuki Kimura, "A chaotic search method incorporating simulated annealing with adaptive temperature variation for Vehicle Routing Problem with Time Windows," Proc. of International Symposium on Nonlinear Theory and Its Applications, pp.xxx-xxx, 2025.

4. Fuya Kumagai, Takafumi Matsuura, and Takayuki Kimura, "Evaluating the robustness of a sine-based gravitational centrality routing strategy in scale-free networks,"  Proc. of International Symposium on Nonlinear Theory and Its Applications, pp.xxx-xxx, 2025.

5. Nozomi Kotake, Takafumi Matsuura, and Takayuki Kimura, "Ant colony optimization method incorporating information entropy for continuous optimization problem," Proc. of International Symposium on Nonlinear Theory and Its Applications, pp.xxx-xxx, 2025.

6. Fengkai Guo, Takafumi Matsuura, Takayuki Kimura, and Tohru Ikeguchi, "Parameter Adjustment Methods for Chaotic Search Using PSO in Capacitated Vehicle Routing Problem," Proc. of International Symposium on Nonlinear Theory and Its Applications, pp.xxx-xxx, 2025.

7. Misa Fujita and Takayuki Kimura, "Constructing A Congestion-Avoiding Multicast Tree Using Network Centrality," Proc. of International Symposium on Nonlinear Theory and Its Applications, pp. xxx-xxx, 2025.

8. Rikuto Shibutani, Takayuki Kimura, Takuya Shindo, and Nobuhiko Itoh, “Enhancing Grey Wolf Optimizer for the Traveling Salesman Problem via Adaptive Neighborhood Learning and Dynamic Parameter Tuning,” Proc. of 2025 IEEE 28th International Conference on Intelligent Transportation Systems, pp. xxx - xxx, 2025.

9. Ayaka Nakazawa, Takafumi Matsuura, and Takayuki Kimura, "An Adaptive Time Series Segmentation Method Based on Weighted Visibility Graphs and Particle Swarm Optimization," Proc. of the Dynamics Days Europe, 2025.

10. Fuya Kumagai, Takafumi Matsuura, and Takayuki Kimura, "A probability routing strategy based on sine function gravitational centrality for enhancing network traffic capacity," Proc. of IEEE International Symposium on Circuits and Systems, pp. 1- 5, 2025. [web]

11. Takatoshi Inaba and Takayuki Kimura, "A Routing Method Using a Wide Range of Congestion Information," Proc. of International Symposium on Nonlinear Theory and Its Applications, pp. 206-209, 2024.

12. Kazuma Nakajima and Takayuki Kimura, "Surrogate analysis of chaos search methods for vehicle routing problem with drones," Proc. of International Symposium on Nonlinear Theory and Its Applications, pp. 214-217, 2024.

13. Nozomi Kotake, Kazuma Nakajima, and Takayuki Kimura, "Performance Investigation of Adaptive Ant Colony Optimization with Simulated Annealing for Vehicle Routing Problem with Time Windows," Proc. of International Symposium on Nonlinear Theory and Its Applications, pp346-349, 2024.

14. Fuya Kumagai, Takatoshi Inaba, and Takayuki Kimura, "A probability routing strategy using degree and distance information for scale-free networks," Proc. of International Symposium on Nonlinear Theory and Its Applications, pp. 249-252, 2024.

15. Rikuto Shibutani and Takayuki Kimura, "Performance investigation of grey wolf optimizer with adaptive large neighborhood search and k-means algorithm for the traveling salesman problems," Proc. of International Symposium on Nonlinear Theory and Its Applications, pp.253-256, 2024.

16. Fengkai Guo, Takafumi Matsuura, Takayuki Kimura, and Tohru Ikeguchi, "A Metaheuristic method for Solving Posting Poster Problem for Public Office Election," Proc. of International Symposium on Nonlinear Theory and Its Applications, pp.198-201, 2024.

17. Fuya Kumagai and Takayuki Kimura, "A probability routing strategy using gravitational centrality for various topologies of communication networks," Proc. of  the International Symposium on Physics and Applications of Laser Dynamics, 2 pages, 2024.

18. Takatoshi Inaba, Kounosuke Hiraki, Takafumi Matsuura, and Takayuki Kimura, "A routing method using chaotic neurodynamics for the transportation networks with the next generation vehicles," Proc. of IEEE International Symposium on Circuits and Systems, pp.1-5, 2024.

19. Konosuke Hiraki, Takafumi Matsuura, and Takayuki Kimura, "Performance Evaluation of a Routing Strategy by Using Signal Information for Communication Networks,"Proc. of International Symposium on Nonlinear Theory and Its Applications" pp.615-618, 2023.

20. Takatoshi Inaba, Konosuke Hiraki, Takafumi Matsuura, and Takayuki Kimura, "An Effective Routing Method Using Chaotic Neurodynamics for Transportation Networks," Proc. of International Symposium on Nonlinear Theory and Its Applications, pp.606-609, 2023.

21. Fengkai Guo, Honami Tsushima, Takafumi Matsuura, Takayuki Kimura, and Tohru Ikeguchi, "A Study on Two-Objective Posting Poster Problem for Public Office Election," Proc. of International Symposium on Nonlinear Theory and Its Applications, pp.602-605, 2023.

22. Kazuma Nakajima, Yusuke Matsuzaki, Takafumi Matsuura, and Takayuki Kimura, "Performance Investigation of Chaotic Search Method for Vehicle Routing Problems with Drones," Proc. of International Symposium on Nonlinear Theory and Its Applications, pp.544-547, 2023.

23. Yusuke Matsuzaki, Takafumi Matsuura, and Takayuki Kimura, "An Effective Solving Method for the Global Search of Pareto Solutions Based on Cooperative Multi-Objective Differential Evolution," Proc. of International Symposium on Nonlinear Theory and Its Applications, pp.~540-543, 2023.

24. Jun Adachi, Takafumi Matsuura, and Takayuki Kimura, "Performance evaluation of chaotic search with stochastic solution transitions for various types of Electric Vehicle Routing Problems with Time Windows," Proc. of RISP International Workshop on Nonlinear Circuits, Communications and Signal Processing, pp.442-445, 2023.

25. Jun Adachi, Konosuke Hiraki, Takafumi Matsuura, and Takayuki Kimura, "Performance evaluation of Tabu Search method and Adaptive Large Neighborhood Search method in the Electric Vehicle Routing Problems with Time Windows," Proc. of International Symposium on Nonlinear Theory and Its Applications, pp.536-539, 2022.

26. Konosuke Hiraki Jun Adachi, Takafumi Matsuura, and Takayuki Kimura, "An effective routing strategy with congestion signaling for communication networks," Proc. of International Symposium on Nonlinear Theory and Its Applications", pp.192-195, 2022.

27. Hisashi Abiko, Takayuki Kimura, and Takafumi Matsuura, "Simulation of Dynamic Taxi Ride-Sharing Problem with One Attribute for Passengers," Proc. of International Symposium on Nonlinear Theory and its Applications, pp.417-420, 2020.

28. Ryu Uto, Toshichika Aoki, and Takayuki Kimura, "A study of information diffusion in social networks," Proc. of International Symposium on Nonlinear Theory and Its Applications, pp.489-492, 2019.

29. Misa Fujita, Takayuki Kimura, and Tohru Ikeguchi, "The Relationship Between Average Firing Rates and Performance of the Chaotic Search for Solving the Steiner Tree Problem in Graphs," Proc. of International Symposium on Nonlinear Theory and Its Applications, pp.505-508, 2019.

30. Akinori Yoshida, Toshichika Aoki, and Takayuki Kimura, "Efficient Algorithm for Packet Routing Problems Using Transmission History Information and Its Surrogate Analysis," Proc. of International Symposium on Nonlinear Theory and Its Applications, pp.485-488, 2019.

31. Toshichika Aoki, Hideyuki Kato, Takafumi Matsuura, and Takayuki Kimura, "Efficient Algorithm for Packet Routing Problems Using Transmission History Information," Proc. of International Symposium on Nonlinear Theory and Its Applications, pp.64-67, 2019.

32. Yoshiya Uchino, Toshichika Aoki, and Takayuki Kimura, "Performance Investigation for a Routing Method Using Chaotic Neurodynamics," Proc. of International Symposium on Nonlinear Theory and Its Applications, pp.497-500, 2019.

33. Kosei Takahashi, Toshichika Aoki, and Takayuki Kimura, "An Approximate Method Using Distance Information for Carpooling Optimization Problems," Proc. of International Symposium on Nonlinear Theory and Its Applications, pp.402-405, 2019.

34. Kosei Takahashi, Toshichika Aoki, Takayuki Kimura, and Tohru Ikeguchi, "An Effective Tabu Search Method with a Limited Search Space for Carpooling Optimization Problems," Proc. of Metaheuristics International Conference, pp.109-111, 2019.

35. Toshichika Aoki, Hideyuki Kato, Takayuki Kimura, and Tohru Ikeguchi, "Optimization of Synchronizability in Power Grids Using a Second-order Kuramoto Model," Proc. of Metaheuristics International Conference, pp.126-128, 2019.

36. Akinori Yoshida, Masaya Kaneko, Toshichika Aoki, Takayuki Kimura, and Tohru Ikeguchi, "Efficient Algorithm for Packet Routing Problems Using Transmission History Information," Proc. of Metaheuristics International Conference, pp.205-207, 2019.

37. Toshichika Aoki, Hideyuki Kato, Takafumi Matsuura, and Takayuki Kimura, "Influence of Failures of Transmission Lines in Power Grid Using Oscillator Networks," Proc. of International Symposium on Nonlinear Theory and Its Applications, pp.69-72, 2018.

38. Honami Tsushima, Takafumi Matsuura, and Takayuki Kimura," Tabu Search Method for Multiple-Vehicle Bike Sharing System Routing Problem," Proc. of International Symposium on Nonlinear Theory and its Applications, pp.168-171, 2018.

39. Misa Fujita, Takayuki Kimura, Kantaro Fujiwara, and Tohru Ikeguchi,"Solving the Steiner Tree Problem in Graphs Using the Key-Path Based Neighborhood with the kth Shortest Path," Proc. of International Symposium on Nonlinear Theory and Its Applications, pp.~61-64, 2018.

40. Toshichika Aoki, Yuuki Morita, and Takayuki Kimura, "Analysis of Frequency Synchronization for Placements of Generators on Power Grid Using Oscillator Networks," Proc. of RISP International Workshop on Nonlinear Circuits, Communications and Signal Processing, pp.~49-52, 2018.

41. Daiki Watanabe, Yuuki Morita, Masaya Kaneko, and Takayuki Kimura, "A Solving Method Using A Variable Penalty Coefficient for Vehicle Routing Problem with Time Windows," Proc. of RISP International Workshop on Nonlinear Circuits, Communications and Signal Processing, pp.~391-394, 2018.

42. Hiroki Sawade and Takayuki Kimura, "An efficient packet routing method adapted to various packet generation probabilities," Proc. of Korea-Japan Joint Workshop on Complex Communication Sciences, CDROM-4pages, 2018.

43. Yuuki Morita and Takayuki Kimura, "A Method Using Node Betweenness Centrality and Transmission History for Packet Routing Problems," Proc. of Korea-Japan Joint Workshop on Complex Communication Sciences, CDROM-4pages, 2018.

44. Yuuki Morita and Takayuki Kimura, "Performance Analysis of Routing Methods Using Complex Network Theory," Proc. of International Symposium on Nonlinear Theory and Its Applications, pp.716-719, 2017.

45. Hiroki Sawade and Takayuki Kimura, "An Efficient Routing Method Using Learning Ability for Load Balancing," Proc. of International Symposium on Nonlinear Theory and Its Applications, pp.708-711, 2017.

46. Yuuki Morita and Takayuki Kimura, "Metaheuristic algorithm using chaotic neurodynamics with degree information for the dynamic combinatorial optimization problem: a packet routing problem," Proc. of Metaheuristics International Conference, pp.186-188, 2017.

47. Misa Fujita, Takayuki Kimura, and Tohru Ikeguchi," Solving the Steiner Tree Problem in Graphs by Chaotic Neural Network using Key Path Neighborhood," Proc. of Metaheuristics International Conference, pp.834-836, 2017.

48. Yuuki Morita, Takayuki Kimura, and Kenya Jin'no, "A Study on a Routing Method Using Chaotic Neurodynamics and Degree Information," Proc. of RISP International Workshop on Nonlinear Circuits, Communications and Signal Processing, pp.217-220, 2017.

49. Hiroki Sawade, Misa Fujita, Takayuki Kimura, and Kenya Jin'no, "An Efficient Routing Method using Adaptive Damping Distance Information," Proc. of RISP International Workshop on Nonlinear Circuits, Communications and Signal Processing, pp.157-160, 2017.

50. Yuki Hasegawa, Takayuki Kimura, and Kenya Jin'no, "An improved Multi objective particle swarm optimization for high dimensional problems," Proc. of RISP International Workshop on Nonlinear Circuits, Communications and Signal Processing, pp.113-116, 2017.

51. Sho Nishi, Takayuki Kimura, and Kenya Jin'no, "A Construction Method of the Link Disjoint Paths with Transmission Reliability on Communication Networks," Proc. of International Symposium on Nonlinear Theory and Its Applications, pp.700-703, 2016.

52. Yuuki Morita, Takayuki Kimura, and Kenya Jin'no, "The Solution Strategy for Packet Routing Problem by Chaotic Neurodynamics with Degree Information," Proc. International Symposium on Nonlinear Theory and Its Applications, pp.296-299, 2016.

53. Sho Tagami, Takayuki Kimura, and Kenya Jin'no, "A Study of a Probabilistic Routing Method Based on Packet Transmission Capacity," Proc. of International Symposium on Nonlinear Theory and Its Applications, pp.292-295, 2016.

54. Tokuma Sato, Takayuki Kimura, and Kenya Jin'no, "An Improved Routing Method using Transmission Memory Information for Wireless Communication Networks," Proc. of International Symposium on Nonlinear Theory and Its Applications, pp.288-291, 2016.

55. Misa Fujita, Takayuki Kimura, and Kenya Jin'no, "A Construction Method for Steiner Tree Problem using Betweenness Centrality," Proc. of International Symposium on Nonlinear Theory and its Applications, pp.124-127, 2016.

56. Yuki Hasegawa, Takayuki Kimura, and Kenya Jin'no "An Improved Multi-Objective Particle Swarm Optimization Method using Efficient Gbest Selection," Proc. of International Symposium on Nonlinear Theory and Its Applications, pp.111-114, 2016.

57. Yuki Hasegawa, Takayuki Kimura, and Kenya Jin'no, "Dual Processing Multi-Objective Particle Swarm Optimization using Improved Crowding Distance Assignment," Proc. of RISP International Workshop on Nonlinear Circuits, Communications and Signal Processing, pp.221-224, 2016.

58. Yuki Hasegawa, Takayuki Kimura, and Kenya Jin'no, "Improved Multi-objective PSO with Dual Processing Method using Crowding Distance Assignment," Proc. of Korea-Japan Joint Workshop on Complex Communication Sciences, CDROM-4pages, 2016.

59. Tohru Takamizawa, Takayuki Kimura, and Kenya Jin'no, "A Packet Congestion Avoidance Method using a Neural Network with Waiting Transmitted Information," Proc. of Korea-Japan Joint Workshop on Complex Communication Sciences, CDROM-4pages, 2016.

60. Misa Fujita, Takayuki Kimura, and Kenya Jin'no, "An Improved KMB Algorithm Using Edge Betweenness for Steiner Tree Problems," Proc. of Korea-Japan Joint Workshop on Complex Communication Sciences, CDROM-4pages, 2016.

61. Tokuma Sato, Takayuki Kimura, and Kenya Jin'no, "Efficient routing method on the mobile communication networks," Proc. of International Symposium on Nonlinear Theory and Its Applications, pp.349-352, 2015.

62. Sho Tagami, Tohru Takamizawa, Takayuki Kimura, and Kenya Jin'no, "A Study on the effective routing method on the scale-free networks," Proc. of Japan-Korea Joint Workshop on Complex Communication Sciences, CDROM-4pages, 2015.

63. Yuki Hasegawa, Takayuki Kimura, Keisuke Kimura, and Kenya Jin'no, "Optimal Design Method for Hybrid Renewable Energy System by Improved Multi-Objective Particle Swarm Optimization," Proc. of Japan-Korea Joint Workshop on Complex Communication Sciences, CDROM-4pages, 2015.

64. Keisuke Kimura, Takayuki Kimura, and Kenya Jin'no, "A Packet Routing Method for the Complex Networks based on Transient Chaotic Neural Networks," Proc. of International Symposium on Nonlinear Theory and Its Applications, pp.249-252, 2014.

65. Tohru Takamizawa, Takayuki Kimura, Keisuke Kimura, and Kenya Jin'no, "Efficient Routing Algorithm Using Mutually Connected Neural Networks with Waiting Transmitted Information," Proc. of International Symposium on Nonlinear Theory and Its Applications, pp.245-248, 2014.

66. Takayuki Kimura and Tohru Ikeguchi, "Performance Relationship between the Chaotic Routing Strategy and the Complex Networks," Proc. of International Symposium on Nonlinear Theory and Its Applications, pp.366-369, 2013.

67. Takayuki Kimura and Tohru Ikeguchi, "Effective routing strategy by chaotic neurodynamics for complex networks," Proc. of RISP International Workshop on Nonlinear Circuits, Communications and Signal Processing, pp.221-224, 2013.

68. Keisuke Kimura and Takayuki Kimura, "Optimal Operation by Recurrent Neural Networks for a Renewable Energy Power-Grid," Proc. of International Symposium on Advanced Intelligent Systems, pp.55-59, 2013.

69. Yusuke Ohtsuka and Takayuki Kimura, "A Study of a New Two-stages MPPT Method for the Photovoltaic System," Proc. of RISP International Workshop on Nonlinear Circuits, Communications and Signal Processing, pp.65-68, 2013.

70. Keisuke Kimura and Takayuki Kimura, "Neural Networks Approach for Wind-Solar Energy System with Complex Networks," IEEE International Conference on Power Electronics and Drive Systems, pp.1-5, 2013.

71. Takayuki Kimura and Tohru Ikeguchi, "Traffic Dynamics on Effective Routing Strategy for Complex Networks," Proc. of International Symposium on Nonlinear Theory and Its Applications, pp.539-542, 2012.

72. Ryota Nakashima, Takayuki Kimura, and Youichi Ishizuka, "A Study of Output Instability in the Current-Mode Controlled DC-DC Buck-Boost Converter," Proc. of International Symposium on Nonlinear Theory and Its Applications, pp.669-702, 2012.

73. Keisuke Kimura and Takayuki Kimura, "Optimal Operation by Recurrent Neural Networks for a Renewable Energy Power-Grid," Proc. of International Conference on Soft Computing and Intelligent Systems, and International Symposium on Advanced Intelligence Systems, pp.55-59, 2012.

74. Takahiro Tsujimoto, Takuya Shindo, Takayuki Kimura, and Kenya Jin'no, "A relationship between network topology and search performance of PSO," Proc. of IEEE Congress on Evolutionary Computation, pp.10-15, 2012.

75. Takayuki Kimura and Tohru Ikeguchi, "Chaotic Routing Strategy with Load-Balanced Effects for Communication Networks," Proc. of International Joint Conference on Neural Networks, pp.1643-1650, 2011.

76. Toshiro Hirose, Hirofumi Matsuo, Kousuke Harada, and Takayuki Kimura, "An Analysis of Bidirectional Superposed Dual Active Bridge DC-DC Converter with Synchronous Rectifier," Proc. of Technical Conference of IEEE, Region 10, pp.1241-1246, 2010.

77. Toshiro Hirose, Keisuke Nishimura, Takayuki Kimura, and Hirofumi Matsuo, "An AC-link Bidirectional DC-DC Converter with Synchronous Rectifier," Proc. of Annual Conference of the IEEE Industrial Electronics Society, pp.345-351, 2010.

78. Takayuki Kimura, Chi Kong Tse, and Tohru Ikeguchi, "Efficient Routing on Scale-free Networks by Memory Information," Proc. of International Symposium on Nonlinear Theory and its Applications, pp.145-148, 2009.

79. Takayuki Kimura and Tohru Ikeguchi, and Chi KongTse," Adaptable Routing Strategy in Traffic Flow," Proc. of International Workshop on Vision, Communications and Circuits, pp.106-109, 2008.

80. Takayuki Kimura, Tohru Ikeguchi, and Chi Kong Tse, "Efficient Routing Strategy in Traffic Flow" Proc. of International Symposium on Nonlinear Theory and its Applications, pp.172-175, 2008.

81. Takayuki Kimura and Tohru Ikeguchi, "An Efficient Routing Strategy with Load-Balancing for Complex Networks," Proc. of International Conference on Nonlinear Theory and its Applications, pp.31-34, 2007.

82. Takashi Hoshino, Takayuki Kimura, and Tohru Ikeguchi, "A New Parameter Adjusting Approach for Solving Vehicle Routing Problems with Chaotic Neurodynamics," Proc. of International Conference on Nonlinear Theory and its Applications, pp.124-127, 2007.

83. Hideyuki Kato, Takayuki Kimura, and Tohru Ikeguchi, "Emergence of self-organized structures in a neural network using two types of STDP learning rules," Proc. of International Conference on Nonlinear Theory and its Applications, pp.16-19, 2007.

84. Takayuki Kimura and Tohru Ikeguchi, "A Heuristic Algorithm using Chaotic Dynamics for Dynamic and Stochastic Shortest Path Problems," Proc. of Metaheuristic International Conference, CDROM-3pages, 2007.

85. Takashi Hoshino, Takayuki Kimura, and Tohru Ikeguchi, "Two Simple Local Searches Controlled by Chaotic Dynamics for Vehicle Routing Problems with Time Window," Proc. of Metaheuristic International Conference, CDROM-3pages, 2007.

86. Takayuki Kimura and Tohru Ikeguchi, "Optimization for Packet Routing using Chaotic Dynamics," Proc. of IEEE International Symposium on Circuits and Systems, pp.2257-2260, 2006.

87. Takayuki Kimura, Hiroyuki Nakajima, and Tohru Ikeguchi, "A Packet Routing Method for A Random Network by A Stochastic Neural Network," Proc. of International Conference on Nonlinear Theory and its Applications, pp.122-125, 2005.