Event-Driven Tactile Learning with Various Location Spiking Neurons

• URL: http://arxiv.org/abs/2210.04277v2
• Date: Tue, 11 Oct 2022 02:34:25 GMT
• Title: Event-Driven Tactile Learning with Various Location Spiking Neurons
• Authors: Peng Kang, Srutarshi Banerjee, Henry Chopp, Aggelos Katsaggelos, Oliver Cossairt
• Abstract summary: Event-driven learning is still in its infancy due to the limited representation abilities of existing spiking neurons. We propose a novel "location spiking neuron" model, which enables us to extract features of event-based data in a novel way. By exploiting the novel location spiking neurons, we propose several models to capture complex tactile-temporal dependencies in the event-driven data.
• Score: 5.822511654546528
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: Tactile sensing is essential for a variety of daily tasks. New advances in event-driven tactile sensors and Spiking Neural Networks (SNNs) spur the research in related fields. However, SNN-enabled event-driven tactile learning is still in its infancy due to the limited representation abilities of existing spiking neurons and high spatio-temporal complexity in the data. In this paper, to improve the representation capability of existing spiking neurons, we propose a novel neuron model called "location spiking neuron", which enables us to extract features of event-based data in a novel way. Specifically, based on the classical Time Spike Response Model (TSRM), we develop the Location Spike Response Model (LSRM). In addition, based on the most commonly-used Time Leaky Integrate-and-Fire (TLIF) model, we develop the Location Leaky Integrate-and-Fire (LLIF) model. By exploiting the novel location spiking neurons, we propose several models to capture the complex spatio-temporal dependencies in the event-driven tactile data. Extensive experiments demonstrate the significant improvements of our models over other works on event-driven tactile learning and show the superior energy efficiency of our models and location spiking neurons, which may unlock their potential on neuromorphic hardware.

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