期刊
IEEE TRANSACTIONS ON COGNITIVE AND DEVELOPMENTAL SYSTEMS
卷 15, 期 2, 页码 337-347出版社
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/TCDS.2020.3041610
关键词
Neurons; IP networks; Membrane potentials; Noise robustness; Computational modeling; Biological neural networks; Adaptation models; Intrinsic plasticity (IP); online unsupervised learning; soft-reset spiking neuron; spiking neural network (SNN)
In this article, the authors propose a soft-reset leaky integrate-and-fire (LIF) model with a new intrinsic plasticity (IP) learning rule. The IP rule optimizes the neuronal membrane potential state to be exponentially distributed, which can maximize information entropy. Experimental results on spiking feed-forward and spiking convolutional neural network models demonstrate that the proposed IP rule effectively improves the computational performance of spiking neural networks in terms of classification accuracy, spiking inference speed, and noise robustness.
Intrinsic plasticity (IP) is an unsupervised, self-adaptive, local learning rule that was first found in biological nerve cells, and has been shown to be able to maximize neuronal information transmission entropy. In this article, we propose a soft-reset leaky integrate-and-fire (LIF) model, a spiking neuron model based on widely used LIF neurons, with a new IP learning rule that optimizes the neuronal membrane potential state to be exponentially distributed. Previous studies have generally used such as spiking neuron expected firing rate as the target variable to maximize output spike distribution. In contrast, the proposed soft-reset model can avoid the problem that conventional LIF neuronal membrane potential is not fully differentiable, hence the proposed IP rule can directly regulate the membrane potential as an auxiliary output signal to desired distribution to maximize its information entropy. We experimentally evaluated the proposed IP rule for pattern recognition on the spiking feed-forward and spiking convolutional neural network models. Experimental results verified that the proposed IP rule can effectively improve spiking neural network computational performance in terms of classification accuracy, spiking inference speed, and noise robustness.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据