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arXiv 2202.01858stat.MLcs.LG
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含隐参数的未知动力系统建模

Modeling unknown dynamical systems with hidden parameters

The Ohio State University(俄亥俄州立大学)

Xiaohan Fu, Weize Mao, Lo-Bin Chang, Dongbin Xiu

摘要:

我们提出了一个数据驱动的数值方法建模未知的动力系统与丢失/隐藏参数。该方法基于使用未知系统的轨迹数据来训练未知系统的深度神经网络(DNN)模型。一个关键特征是未知动力系统包含完全隐藏的系统参数,在这个意义上,通过测量轨迹数据或我们对系统的先验知识,无法获得有关参数的信息。我们证明,通过使用具有足够时间历史的轨迹数据训练DNN,所得到的DNN模型可以准确地对未知的动力系统进行建模。对于与新的和未知的系统参数相关联的新的初始条件,DNN模型可以在更长的时间内产生准确的系统预测。

英文摘要:

We present a data-driven numerical approach for modeling unknown dynamical systems with missing/hidden parameters. The method is based on training a deep neural network (DNN) model for the unknown system using its trajectory data. A key feature is that the unknown dynamical system contains system parameters that are completely hidden, in the sense that no information about the parameters is available through either the measurement trajectory data or our prior knowledge of the system. We demonstrate that by training a DNN using the trajectory data with sufficient time history, the resulting DNN model can accurately model the unknown dynamical system. For new initial conditions associated with new, and unknown, system parameters, the DNN model can produce accurate system predictions over longer time.

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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