Random feature models for learning interacting dynamical systems
Random feature models for learning interacting dynamical systems
复制标题
用于学习交互动力系统的随机特征模型
DOI:
10.1098/rspa.2022.0835
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发表时间:
2023
期刊:
影响因子:
--
通讯作者:
Schaeffer, Hayden
中科院分区:
文献类型:
--
作者:
Liu, Yuxuan;McCalla, Scott G.;Schaeffer, Hayden
Particle dynamics and multi-agent systems provide accurate dynamical models for studying and forecasting the behaviour of complex interacting systems. They often take the form of a high-dimensional system of differential equations parameterized by an interaction kernel that models the underlying attractive or repulsive forces between agents. We consider the problem of constructing a data-based approximation of the interacting forces directly from noisy observations of the paths of the agents in time. The learned interaction kernels are then used to predict the agents’ behaviour over a longer time interval. The approximation developed in this work uses a randomized feature algorithm and a sparse randomized feature approach. Sparsity-promoting regression provides a mechanism for pruning the randomly generated features which was observed to be beneficial when one has limited data, in particular, leading to less overfitting than other approaches. In addition, imposing sparsity reduces the kernel evaluation cost which significantly lowers the simulation cost for forecasting the multi-agent systems. Our method is applied to various examples, including first-order systems with homogeneous and heterogeneous interactions, second-order homogeneous systems, and a new sheep swarming system.
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DOI:
10.1137/16m1086637
发表时间:
2016
期刊:
Multiscale Model. Simul.
影响因子:
--
作者:
Giang Tran;Rachel A. Ward
通讯作者:
Rachel A. Ward
DOI:
10.48550/arxiv.2203.03979
发表时间:
2022-03
期刊:
Proceedings of machine learning research
影响因子:
--
作者:
D. Messenger;E. Dall’Anese;D. Bortz
通讯作者:
D. Messenger;E. Dall’Anese;D. Bortz
影响因子:
2.5
作者:
Abolfazl Hashemi;Hayden Schaeffer;Robert Shi;U. Topcu;Giang Tran;Rachel A. Ward
通讯作者:
Abolfazl Hashemi;Hayden Schaeffer;Robert Shi;U. Topcu;Giang Tran;Rachel A. Ward
影响因子:
1.4
作者:
Zhongyan Li;F. Lu;M. Maggioni;Sui Tang;C. Zhang
通讯作者:
Zhongyan Li;F. Lu;M. Maggioni;Sui Tang;C. Zhang
DOI:
10.1016/j.compchemeng.2021.107411
发表时间:
2021
期刊:
Comput. Chem. Eng.
影响因子:
--
作者:
Fahim Abdullah;Zhe Wu;P. Christofides
通讯作者:
P. Christofides