Title
Training and Inference using Approximate Floating-Point Arithmetic for Energy Efficient Spiking Neural Network Processors
Abstract
This paper presents a systematic analysis of spiking neural network (SNN) performance with reduced computation precisions using approximate adders. We propose an IEEE 754-based approximate floating-point adder that applies to the leaky integrate-and-fire (LIF) neuron-based SNN operation for both training and inference. The experimental results under a two-layer SNN for MNIST handwritten digit recognition application show that 4-bit exact mantissa adder with 19-bit approximation for lower-part OR adder (LOA), instead of 23-bit full-precision mantissa adder, can be exploited to maintain good classification accuracy. When adopted LOA as mantissa adder, it can achieve up to 74.1% and 96.5% of power and energy saving, respectively.
Year
DOI
Venue
2021
10.1109/ICEIC51217.2021.9369724
2021 International Conference on Electronics, Information, and Communication (ICEIC)
Keywords
DocType
ISBN
spiking neural network (SNN),leaky integrate-and-fire (LIF) neuron,approximate adder,floating-point arithmetic
Conference
978-1-7281-9162-1
Citations 
PageRank 
References 
0
0.34
0
Authors
5
Name
Order
Citations
PageRank
Myeongjin Kwak100.34
Jungwon Lee289095.15
Hyoju Seo300.34
Mingyu Sung400.34
Yong Tae Kim5228.62