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Nonparametric inference of interaction laws in systems of agents from trajectory data
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Nonparametric inference of interaction laws in systems of agents from trajectory data
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Journal Article
Nonparametric inference of interaction laws in systems of agents from trajectory data
2019
Overview
Inferring the laws of interaction in agent-based systems from observational data is a fundamental challenge in a wide variety of disciplines. We propose a nonparametric statistical learning approach for distance-based interactions, with no reference or assumption on their analytical form, given data consisting of sampled trajectories of interacting agents. We demonstrate the effectiveness of our estimators both by providing theoretical guarantees that avoid the curse of dimensionality and by testing them on a variety of prototypical systems used in various disciplines. These systems include homogeneous and heterogeneous agent systems, ranging from particle systems in fundamental physics to agent-based systems that model opinion dynamics under the social influence, prey–predator dynamics, flocking and swarming, and phototaxis in cell dynamics.
Publisher
National Academy of Sciences
