异构神经网络的降维:广义多项式混沌(gPC)和变异分析(ANOVA)
Dimension reduction in heterogeneous neural networks: generalized Polynomial Chaos (gPC) and ANalysis-Of-VAriance (ANOVA)
摘要:
我们提出,并说明通过神经网络的例子,两种不同的方法来粗粒度的大型异构网络。这两种方法的灵感,并使用开发的工具,不确定性量化的方法在系统中的多个不确定参数-在我们的情况下,参数是不均匀分布在网络节点。该方法在加速大规模网络模拟以及粗粒度不动点、周期解和稳定性分析方面显示出了良好的前景。我们还表明,该方法可以成功地处理结构以及内在的异质性。
英文摘要:
We propose, and illustrate via a neural network example, two different approaches to coarse-graining large heterogeneous networks. Both approaches are inspired from, and use tools developed in, methods for uncertainty quantification in systems with multiple uncertain parameters - in our case, the parameters are heterogeneously distributed on the network nodes. The approach shows promise in accelerating large scale network simulations as well as coarse-grained fixed point, periodic solution and stability analysis. We also demonstrate that the approach can successfully deal with structural as well as intrinsic heterogeneities.
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