Article
Mathematics, Applied
Chen Liu, Shupeng Gao, Mingrui Song, Yue Bai, Lili Chang, Zhen Wang
Summary: Reaction-diffusion processes in network structures have attracted interest, with wave patterns as a studied solution affected by underlying network topology. An optimal control framework has been proposed to generate wave patterns regardless of topological disturbances.
Article
Mathematics, Applied
Keguo Ren, Qimin Zhang, Ting Li, Ting Kang
Summary: This paper presents an avian influenza model for heterogeneous complex networks, with analyses on the basic reproduction number, stability of equilibrium points, and an optimal control problem. Numerical simulations are used to demonstrate the main results, including the conditions for disease spread and control strategies for the outbreak.
MATHEMATICAL METHODS IN THE APPLIED SCIENCES
(2021)
Article
Mechanics
Zu-Yu Qian, Cheng Yuan, Jie Zhou, Shi-Ming Chen, Sen Nie
Summary: This study explores the incorporation of conformity behavior into network control and finds that controlling undirected networked systems with conformity becomes easier after the network connectivity reaches a critical point. The research also identifies key nodal structural characteristics and proposes an optimal control strategy to reduce energy consumption. These findings are validated in synthetic and real networks, highlighting their significance in describing control energy in networked systems.
JOURNAL OF STATISTICAL MECHANICS-THEORY AND EXPERIMENT
(2022)
Article
Thermodynamics
Zhe Cui, Yang Sun, Wende Tian, Bin Liu, Qingjie Guo
Summary: This paper proposes a novel dynamic safety control strategy based on process modeling and complex risk computation to ensure the stable operation of the coal chemical looping gasification system (CCLGS). By modeling the CCLGS process and calculating the risk, it is found that the fuel reactor (FR) and air reactor (AR) have higher risk grades. Finally, a study on the dynamic control of FR and AR processes is conducted to evaluate the safety integrity level of pressure controllers.
Article
Computer Science, Cybernetics
Yuxuan Huang, Jiajing Wu, Chi K. Tse, Zibin Zheng
Summary: The study uses game theory to analyze the strategies of attackers and defenders in complex networks. By proposing a flexible attacker-defender game model, parameters and resources for network attack/defense are allocated accordingly.
IEEE TRANSACTIONS ON COMPUTATIONAL SOCIAL SYSTEMS
(2022)
Article
Mathematics, Applied
Zhimin Han, Yi Wang, Jinde Cao
Summary: The study found that the increase in individuals' contact heterogeneity may lead to complex dynamics of disease behavior, breaking the correlation between initial growth and the basic reproduction number. Analyzing the infected density monotonicity in networks with bimodal degree distribution, sufficient or necessary conditions were derived. In networks with arbitrary degree distribution, regularities in the initial growth behavior were discovered.
APPLIED MATHEMATICS AND COMPUTATION
(2023)
Article
Automation & Control Systems
Leitao Gao, Guangshe Zhao, Guoqi Li, Fanghong Guo, Fei Zeng
Summary: This study focuses on minimizing the control energy cost when controlling a preselected subset of nodes in complex networks. An optimal controller is designed to establish an energy cost function, and two algorithms are proposed to solve this problem.
IEEE TRANSACTIONS ON CONTROL OF NETWORK SYSTEMS
(2021)
Article
Engineering, Electrical & Electronic
Juntao Chen, Yunhan Huang, Rui Zhang, Quanyan Zhu
Summary: This paper discusses the optimal curing strategy for suppressing competing epidemics spreading over complex networks. By establishing a framework to capture the coupling between two epidemics and analyzing equilibrium states, the paper designs a globally optimized curing strategy and provides structural results on the predictability of epidemic spreading. The robustness of the curing strategy and the application of gradient descent algorithm are also demonstrated in the research.
IEEE TRANSACTIONS ON SIGNAL AND INFORMATION PROCESSING OVER NETWORKS
(2021)
Article
Multidisciplinary Sciences
A. Barrat, C. Cattuto, M. Kivela, S. Lehmann, J. Saramaeki
Summary: This study demonstrates the importance of combining manual contact tracing and digital contact tracing to effectively mitigate the COVID-19 pandemic and reduce societal costs. The findings show a linear relationship between the fraction of contacts recalled during MCT and app adoption rate, with the effect being quadratic, highlighting the potential for significant cost reductions if app adoption and MCT efficiency are sufficiently high.
JOURNAL OF THE ROYAL SOCIETY INTERFACE
(2021)
Article
Computer Science, Artificial Intelligence
Wenjun Xiong, Xinghuo Yu, Chen Liu, Guanghui Wen, Shiping Wen
Summary: The study discusses the stability of a hierarchical network with delayed output using optimal periodic control and proposes an aggregation algorithm to reduce the number of nodes. The optimal control scheme is utilized to reduce bandwidth waste and ensure stability, achieving asymptotic stability of the system outputs and improving convergence speeds of slow nodes.
IEEE TRANSACTIONS ON NEURAL NETWORKS AND LEARNING SYSTEMS
(2021)
Article
Social Sciences, Interdisciplinary
Nancy F. Ramirez, Daniel Rios-Rivera, Esteban A. Hernandez-Vargas, Alma Y. Alanis
Summary: This paper proposes an impulsive control scheme for a complex network to reduce the spread of influenza and COVID-19. A neural identifier is trained to provide the appropriate nonlinear model, and simulations with different parameter values are conducted.
Article
Computer Science, Artificial Intelligence
Qili Chen, Junfang Fan, Wenbai Chen, Ancai Zhang, Guangyuan Pan
Summary: In this paper, a dimension-reducible data-driven optimization control framework for wastewater treatment process (WWTP) is proposed. The constraint relationship between control variables is approximated using a neural network, and the optimization search is performed in a low-dimensional space. The convergence of the process is ensured through mathematical analysis. Experimental simulation results show the effectiveness of this approach in achieving an optimal solution in control systems.
IEEE TRANSACTIONS ON NEURAL NETWORKS AND LEARNING SYSTEMS
(2023)
Article
Engineering, Mechanical
Tong-Chol Choe, Chol-Nam Ri, Myong-Jin Jo, Myong-Chol Ri
Summary: In this study, analytical expressions for the engagement process and contact line of involute helical gears were developed in the Cartesian coordinate system. The engagement process was analyzed in depth and equations, parameters, and analytic relations for the contact line were obtained. The change process of the contact line length was investigated and the engagement mode was divided into three types.
MECHANISM AND MACHINE THEORY
(2022)
Article
Mathematics, Interdisciplinary Applications
Shi-Gen Liao, Shu-Ping Yi
Summary: The study introduces a novel RHS knowledge transmission model and analyzes its stability theoretically and numerically. Results show the impact of the basic reproduction number R-0 on the knowledge transmission process, providing suggestions for promoting knowledge transmission.
CHAOS SOLITONS & FRACTALS
(2021)
Article
Computer Science, Information Systems
Subhroshekhar Ghosh, Naoto Miyoshi, Tomoyuki Shirai
Summary: This study investigates network models based on random perturbations of Euclidean lattices, which significantly improve network efficiency while retaining mathematical and computational simplicity and robustness. The coverage probability is approximated by a log-normal distribution with parameters depending on the Epstein Zeta function of the lattice and exhibits approximate dependencies for a power-law constant.
IEEE TRANSACTIONS ON INFORMATION THEORY
(2022)