中国物理B ›› 2022, Vol. 31 ›› Issue (11): 116401-116401.doi: 10.1088/1674-1056/ac7cce

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Graph dynamical networks for forecasting collective behavior of active matter

Yanjun Liu(刘彦君)1, Rui Wang(王瑞)1, Cai Zhao(赵偲)2,†, and Wen Zheng(郑文)1,3,‡   

  1. 1 Institute of Public-Safety and Big Data, College of Data Science, Taiyuan University of Technology, Taiyuan 030060, China;
    2 Center of Information Management and Development, Taiyuan University of Technology, Taiyuan 030060, China;
    3 Center for Healthy Big Data, Changzhi Medical College, Changzhi 046000, China
  • 收稿日期:2022-02-18 修回日期:2022-06-13 接受日期:2022-06-29 出版日期:2022-10-17 发布日期:2022-10-17
  • 通讯作者: Cai Zhao, Wen Zheng E-mail:zhaocai@tyut.edu.cn;zhengwen@tyut.edu.cn

Graph dynamical networks for forecasting collective behavior of active matter

Yanjun Liu(刘彦君)1, Rui Wang(王瑞)1, Cai Zhao(赵偲)2,†, and Wen Zheng(郑文)1,3,‡   

  1. 1 Institute of Public-Safety and Big Data, College of Data Science, Taiyuan University of Technology, Taiyuan 030060, China;
    2 Center of Information Management and Development, Taiyuan University of Technology, Taiyuan 030060, China;
    3 Center for Healthy Big Data, Changzhi Medical College, Changzhi 046000, China
  • Received:2022-02-18 Revised:2022-06-13 Accepted:2022-06-29 Online:2022-10-17 Published:2022-10-17
  • Contact: Cai Zhao, Wen Zheng E-mail:zhaocai@tyut.edu.cn;zhengwen@tyut.edu.cn

摘要: After decades of theoretical studies, the rich phase states of active matter and cluster kinetic processes are still of research interest. How to efficiently calculate the dynamical processes under their complex conditions becomes an open problem. Recently, machine learning methods have been proposed to predict the degree of coherence of active matter systems. In this way, the phase transition process of the system is quantified and studied. In this paper, we use graph network as a powerful model to determine the evolution of active matter with variable individual velocities solely based on the initial position and state of the particles. The graph network accurately predicts the order parameters of the system in different scale models with different individual velocities, noise and density to effectively evaluate the effect of diverse condition. Compared with the classical physical deduction method, we demonstrate that graph network prediction is excellent, which could save significantly computing resources and time. In addition to active matter, our method can be applied widely to other large-scale physical systems.

关键词: active matter, graph network, improvement of Vicsek, collective motion

Abstract: After decades of theoretical studies, the rich phase states of active matter and cluster kinetic processes are still of research interest. How to efficiently calculate the dynamical processes under their complex conditions becomes an open problem. Recently, machine learning methods have been proposed to predict the degree of coherence of active matter systems. In this way, the phase transition process of the system is quantified and studied. In this paper, we use graph network as a powerful model to determine the evolution of active matter with variable individual velocities solely based on the initial position and state of the particles. The graph network accurately predicts the order parameters of the system in different scale models with different individual velocities, noise and density to effectively evaluate the effect of diverse condition. Compared with the classical physical deduction method, we demonstrate that graph network prediction is excellent, which could save significantly computing resources and time. In addition to active matter, our method can be applied widely to other large-scale physical systems.

Key words: active matter, graph network, improvement of Vicsek, collective motion

中图分类号:  (Phase equilibria)

  • 64.75.-g
07.05.Mh (Neural networks, fuzzy logic, artificial intelligence) 05.65.+b (Self-organized systems) 87.64.Aa (Computer simulation)