arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 2006.12427math.DSmath.OC
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混合系统的Koopman表示学习

Learning Koopman Representations for Hybrid Systems

Craig Bakker, Arnab Bhattacharya, Samrat Chatterjee, Casey J. Perkins, Matthew R. Oster

摘要:

Koopman算子将非线性动力系统提升到可观察量的函数空间中,其中动力学是线性的。在本文中,我们提供了三种不同的Koopman表示的混合动力系统。第一个是特定的切换系统,第二个和第三个保留原来的混合动力学,同时消除离散状态变量;第二种方法是直接的,我们提供的条件下,与第三个持有的转换。消除离散状态变量在使用数据驱动的方法来学习Koopman算子及其可观测量时提供计算益处。在此之后,我们使用深度学习在两个测试用例上实现每个表示,讨论与这些实现相关的挑战,并提出未来工作的领域。

英文摘要:

The Koopman operator lifts nonlinear dynamical systems into a functional space of observables, where the dynamics are linear. In this paper, we provide three different Koopman representations for hybrid systems. The first is specific to switched systems, and the second and third preserve the original hybrid dynamics while eliminating the discrete state variables; the second approach is straightforward, and we provide conditions under which the transformation associated with the third holds. Eliminating discrete state variables provides computational benefits when using data-driven methods to learn the Koopman operator and its observables. Following this, we use deep learning to implement each representation on two test cases, discuss the challenges associated with those implementations, and propose areas of future work.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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