Detecting self-organising patterns in crowd motion: effect of optimisation algorithms

IF 16.4 1区化学 Q1 CHEMISTRY, MULTIDISCIPLINARY

Accounts of Chemical Research Pub Date : 2024-04-30 DOI:10.1186/s13362-024-00145-w

Samson Worku, Pratik Mullick

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引用次数: 0

Abstract

The escalating process of urbanization has raised concerns about incidents arising from overcrowding, necessitating a deep understanding of large human crowd behavior and the development of effective crowd management strategies. This study employs computational methods to analyze real-world crowd behaviors, emphasizing self-organizing patterns. Notably, the intersection of two streams of individuals triggers the spontaneous emergence of striped patterns, validated through both simulations and live human experiments. Addressing a gap in computational methods for studying these patterns, previous research utilized the pattern-matching technique, employing the Nelder-Mead Simplex algorithm for fitting a two-dimensional sinusoidal function to pedestrian coordinates. This paper advances the pattern-matching procedure by introducing Simulated Annealing as the optimization algorithm and employing a two-dimensional square wave for data fitting. The amalgamation of Simulated Annealing and the square wave significantly enhances pattern fitting quality, validated through statistical hypothesis tests. The study concludes by outlining potential applications of this method across diverse scenarios.

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检测人群运动中的自组织模式：优化算法的影响

不断升级的城市化进程引发了人们对拥挤事件的担忧，因此有必要深入了解大型人群的行为，并制定有效的人群管理策略。本研究采用计算方法分析现实世界中的人群行为，强调自组织模式。值得注意的是，两股人流的交汇引发了条纹图案的自发出现，这在模拟和真人实验中都得到了验证。针对研究这些模式的计算方法的不足，之前的研究利用了模式匹配技术，采用奈尔德-梅德简约算法将二维正弦函数拟合到行人坐标上。本文引入模拟退火作为优化算法，并采用二维方波进行数据拟合，从而推进了模式匹配程序。模拟退火和方波的结合大大提高了模式匹配的质量，这一点通过统计假设检验得到了验证。研究最后概述了该方法在不同场景中的潜在应用。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Accounts of Chemical Research 化学-化学综合

CiteScore

31.40

自引率

1.10%

发文量

312

审稿时长

2 months

期刊介绍： Accounts of Chemical Research presents short, concise and critical articles offering easy-to-read overviews of basic research and applications in all areas of chemistry and biochemistry. These short reviews focus on research from the author’s own laboratory and are designed to teach the reader about a research project. In addition, Accounts of Chemical Research publishes commentaries that give an informed opinion on a current research problem. Special Issues online are devoted to a single topic of unusual activity and significance. Accounts of Chemical Research replaces the traditional article abstract with an article "Conspectus." These entries synopsize the research affording the reader a closer look at the content and significance of an article. Through this provision of a more detailed description of the article contents, the Conspectus enhances the article's discoverability by search engines and the exposure for the research.