Balanced Resonate-and-Fire Neurons

• URL: http://arxiv.org/abs/2402.14603v2
• Date: Tue, 08 Oct 2024 11:13:44 GMT
• Title: Balanced Resonate-and-Fire Neurons
• Authors: Saya Higuchi, Sebastian Kairat, Sander M. Bohte, Sebastian Otte,
• Abstract summary: We introduce the balanced RF (BRF) neuron, which alleviates some of the intrinsic limitations of vanilla RF neurons. We show that networks of BRF neurons achieve overall higher task performance, produce only a fraction of the spikes, and require significantly fewer parameters as compared to modern RSNNs.
• Score: 1.3223682837381137
• License:
• Abstract: The resonate-and-fire (RF) neuron, introduced over two decades ago, is a simple, efficient, yet biologically plausible spiking neuron model, which can extract frequency patterns within the time domain due to its resonating membrane dynamics. However, previous RF formulations suffer from intrinsic shortcomings that limit effective learning and prevent exploiting the principled advantage of RF neurons. Here, we introduce the balanced RF (BRF) neuron, which alleviates some of the intrinsic limitations of vanilla RF neurons and demonstrates its effectiveness within recurrent spiking neural networks (RSNNs) on various sequence learning tasks. We show that networks of BRF neurons achieve overall higher task performance, produce only a fraction of the spikes, and require significantly fewer parameters as compared to modern RSNNs. Moreover, BRF-RSNN consistently provide much faster and more stable training convergence, even when bridging many hundreds of time steps during backpropagation through time (BPTT). These results underscore that our BRF-RSNN is a strong candidate for future large-scale RSNN architectures, further lines of research in SNN methodology, and more efficient hardware implementations.

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