TT-SNN: Tensor Train Decomposition for Efficient Spiking Neural Network Training

• URL: http://arxiv.org/abs/2401.08001v1
• Date: Mon, 15 Jan 2024 23:08:19 GMT
• Title: TT-SNN: Tensor Train Decomposition for Efficient Spiking Neural Network Training
• Authors: Donghyun Lee, Ruokai Yin, Youngeun Kim, Abhishek Moitra, Yuhang Li, Priyadarshini Panda
• Abstract summary: We introduce Train Decomposition for Spiking Neural Networks (TT-SNN) TT-SNN reduces model size through trainable weight decomposition, resulting in reduced storage, FLOPs, and latency. We also propose a parallel computation as an alternative to the typical sequential tensor computation.
• Score: 27.565726483503838
• License: http://creativecommons.org/licenses/by-nc-nd/4.0/
• Abstract: Spiking Neural Networks (SNNs) have gained significant attention as a potentially energy-efficient alternative for standard neural networks with their sparse binary activation. However, SNNs suffer from memory and computation overhead due to spatio-temporal dynamics and multiple backpropagation computations across timesteps during training. To address this issue, we introduce Tensor Train Decomposition for Spiking Neural Networks (TT-SNN), a method that reduces model size through trainable weight decomposition, resulting in reduced storage, FLOPs, and latency. In addition, we propose a parallel computation pipeline as an alternative to the typical sequential tensor computation, which can be flexibly integrated into various existing SNN architectures. To the best of our knowledge, this is the first of its kind application of tensor decomposition in SNNs. We validate our method using both static and dynamic datasets, CIFAR10/100 and N-Caltech101, respectively. We also propose a TT-SNN-tailored training accelerator to fully harness the parallelism in TT-SNN. Our results demonstrate substantial reductions in parameter size (7.98X), FLOPs (9.25X), training time (17.7%), and training energy (28.3%) during training for the N-Caltech101 dataset, with negligible accuracy degradation.

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