Pursing the Sparse Limitation of Spiking Deep Learning Structures

• URL: http://arxiv.org/abs/2311.12060v1
• Date: Sat, 18 Nov 2023 17:00:40 GMT
• Title: Pursing the Sparse Limitation of Spiking Deep Learning Structures
• Authors: Hao Cheng, Jiahang Cao, Erjia Xiao, Mengshu Sun, Le Yang, Jize Zhang, Xue Lin, Bhavya Kailkhura, Kaidi Xu, Renjing Xu
• Abstract summary: Spiking Neural Networks (SNNs) are garnering increased attention for their superior computation and energy efficiency. We introduce an innovative algorithm capable of simultaneously identifying both weight and patch-level winning tickets. We demonstrate that our spiking lottery ticket achieves comparable or superior performance even when the model structure is extremely sparse.
• Score: 42.334835610250714
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: Spiking Neural Networks (SNNs), a novel brain-inspired algorithm, are garnering increased attention for their superior computation and energy efficiency over traditional artificial neural networks (ANNs). To facilitate deployment on memory-constrained devices, numerous studies have explored SNN pruning. However, these efforts are hindered by challenges such as scalability challenges in more complex architectures and accuracy degradation. Amidst these challenges, the Lottery Ticket Hypothesis (LTH) emerges as a promising pruning strategy. It posits that within dense neural networks, there exist winning tickets or subnetworks that are sparser but do not compromise performance. To explore a more structure-sparse and energy-saving model, we investigate the unique synergy of SNNs with LTH and design two novel spiking winning tickets to push the boundaries of sparsity within SNNs. Furthermore, we introduce an innovative algorithm capable of simultaneously identifying both weight and patch-level winning tickets, enabling the achievement of sparser structures without compromising on the final model's performance. Through comprehensive experiments on both RGB-based and event-based datasets, we demonstrate that our spiking lottery ticket achieves comparable or superior performance even when the model structure is extremely sparse.

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