Gated Parametric Neuron for Spike-based Audio Recognition

• URL: http://arxiv.org/abs/2412.01087v1
• Date: Mon, 02 Dec 2024 03:46:26 GMT
• Title: Gated Parametric Neuron for Spike-based Audio Recognition
• Authors: Haoran Wang, Herui Zhang, Siyang Li, Dongrui Wu,
• Abstract summary: Spiking neural networks (SNNs) aim to simulate real neural networks in the human brain with biologically plausible neurons. This paper proposes a leaky parametric neuron (GPN) to process-temporal information effectively with gating mechanism.
• Score: 26.124844943674407
• License:
• Abstract: Spiking neural networks (SNNs) aim to simulate real neural networks in the human brain with biologically plausible neurons. The leaky integrate-and-fire (LIF) neuron is one of the most widely studied SNN architectures. However, it has the vanishing gradient problem when trained with backpropagation. Additionally, its neuronal parameters are often manually specified and fixed, in contrast to the heterogeneity of real neurons in the human brain. This paper proposes a gated parametric neuron (GPN) to process spatio-temporal information effectively with the gating mechanism. Compared with the LIF neuron, the GPN has two distinguishing advantages: 1) it copes well with the vanishing gradients by improving the flow of gradient propagation; and, 2) it learns spatio-temporal heterogeneous neuronal parameters automatically. Additionally, we use the same gate structure to eliminate initial neuronal parameter selection and design a hybrid recurrent neural network-SNN structure. Experiments on two spike-based audio datasets demonstrated that the GPN network outperformed several state-of-the-art SNNs, could mitigate vanishing gradients, and had spatio-temporal heterogeneous parameters. Our work shows the ability of SNNs to handle long-term dependencies and achieve high performance simultaneously.

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