Network Reconstruction From High-Dimensional Ordinary Differential Equations.
Network Reconstruction From High-Dimensional Ordinary Differential Equations.
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DOI:
10.1080/01621459.2016.1229197
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发表时间:
2017
影响因子:
3.7
通讯作者:
Witten DM
中科院分区:
文献类型:
--
作者:
Chen S;Shojaie A;Witten DM
We consider the task of learning a dynamical system from high-dimensional time-course data. For instance, we might wish to estimate a gene regulatory network from gene expression data measured at discrete time points. We model the dynamical system nonparametrically as a system of additive ordinary differential equations. Most existing methods for parameter estimation in ordinary differential equations estimate the derivatives from noisy observations. This is known to be challenging and inefficient. We propose a novel approach that does not involve derivative estimation. We show that the proposed method can consistently recover the true network structure even in high dimensions, and we demonstrate empirical improvement over competing approaches. Supplementary materials for this article are available online.
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