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A Hardware-Efficient Sigmoid Function With Adjustable Precision for a Neural Network System

delete2015-11-01
delete58
PRE
AI
C
Chang-Hung Tsai *
Y
Yu-Ting Chih
W
Wing Hung Wong
C
Chen‐Yi Lee
DOI:10.1109/TCSII.2015.2456531delete
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摘要

摘要

En 中文
A hardware-efficient sigmoid function calculator with adjustable precision for neural network and deep-learning applications is proposed in this brief. By adopting the bit-plane format of the input and output values, the computational latency of the processing time can be dynamically reduced according to the user configuration. To reduce the hardware cost, the coefficients used to calculate the sigmoid value can be shared for multiple calculators without any structural hazard. In addition, the restricted constraint is applied in the coefficients' training stage to further simplify the computation in the calculation stage with a negligible quality loss. A test module is designed for the proposal and operated at 300 MHz to achieve 75 million sigmoid calculations per second. Implemented in 90-nm CMOS technology, the core of the calculator costs 1663 gates, and a 1-kb globally shared memory is used to store the coefficients.
Keyword:
Adjustable precision
deep learning
hardware efficient
neural network
sigmoid function
AI总结

AI总结

对已上传原文的论文进行重点信息的提取,主要内容包括:简要概述、研究摘要、背景介绍、关键亮点、图文解析、展望与总结。

期刊

I
IEEE Transactions on Circuits and Systems and Express Briefs
IF:
4.9
论文数:
8.8K
被引数:
2.5W

机构

N
National Yang Ming Chiao Tung University
学者数:
2.5W
论文数: 2.3W
被引数: 2.2W
S
Stanford University
学者数:
9.6W
论文数: 8.2W
被引数: 17.0W
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