Mathematics > Optimization and Control
[Submitted on 8 Apr 2018 (v1), last revised 29 Apr 2020 (this version, v3)]
Title:Modeling collective behaviors: A moment-based approach
View PDFAbstract:In this work we introduce an approach for modeling and analyzing collective behavior of a group of agents using moments. We represent the group of agents via their distribution and derive a method to estimate the dynamics of the moments. We use this to predict the evolution of the distribution of agents by first computing the moment trajectories and then use this to reconstruct the distribution of the agents. In the latter an inverse problem is solved in order to reconstruct a nominal distribution and to recover the macro-scale properties of the group of agents. The proposed method is applicable for several types of multi-agent systems, e.g., leader-follower systems. We derive error bounds for the moment trajectories and describe how to take these error bounds into account for computing the moment dynamics. The convergence of the moment dynamics is also analyzed for cases with monomial moments. To illustrate the theory, two numerical examples are given. In the first we consider a multi-agent system with interactions and compare the proposed methods for several types of moments. In the second example we apply the framework to a leader-follower problem for modeling pedestrian crowd dynamics.
Submission history
From: Silun Zhang [view email][v1] Sun, 8 Apr 2018 11:27:58 UTC (437 KB)
[v2] Mon, 3 Sep 2018 14:36:49 UTC (2,652 KB)
[v3] Wed, 29 Apr 2020 13:55:45 UTC (3,130 KB)
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