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Approximate Down-Sampling Strategy for Power-Constrained Intelligent Systems

delete2022-01-01
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OA
AI
F
Fanny Spagnolo
S
Stefania Perri
P
Pasquale Corsonello *
DOI:10.1109/ACCESS.2022.3142292delete
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摘要

摘要

En 中文
In modern power constrained applications, as with most of those belonging to the Internet-of-Things world, custom hardware supports are ever more commonly adopted to deploy artificial intelligence algorithms. In these operating environments, limiting the power dissipation as much as possible is mandatory, even at the expense of reduced computational accuracy. In this paper we propose a novel prediction method to identify potential predominant features in convolutional layers followed by down-sampling layers, thus reducing the overall number of convolution calculations. This approximation down-sampling strategy has been exploited to design a custom hardware architecture for the inference of Convolutional Neural Network (CNN) models. The proposed approach has been applied to several benchmark CNN models and we achieved an overall energy saving of up to 70% with an accuracy loss lower than 3%, with respect to baseline designs. Performed experiments demonstrate that, when adopted to infer the Visual Geometry Group-16 (VGG16) network model, the proposed architecture implemented on a Xilinx Z-7045 chip and on the STM 28nm process technology dissipates only 680 and 21.9 mJ/frame, respectively. In both cases, the novel design overcomes several state-of-the-art competitors in terms of energy-accuracy drop product.
Keyword:
Computer architecture
Quantization (signal)
Convolution
Hardware
Filtering algorithms
Convolutional neural networks
Prediction algorithms
Approximate computing
convolutional neural networks
low-power hardware architectures
pooling layers

期刊

IEEE Access 封面图
IEEE Access
IF:
3.6
论文数:
9.8W
被引数:
29.4W

机构

U
University of Calabria
学者数:
8.2K
论文数: 8.0K
被引数: 7.8K
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