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Fast and High-Accuracy Approximate MAC Unit Design for CNN Computing

文献类型：期刊论文

作者Xiao, Hang1,2; Xu, Haobo1,2; Chen, Xiaoming1,2; Wang, Yujie1,2; Han, Yinhe1,2
刊名IEEE EMBEDDED SYSTEMS LETTERS
出版日期2022-09-01
卷号14期号:3页码:155-158
关键词Approximate computing convolution neural network multiply and accumulate (MAC)
ISSN号1943-0663
DOI10.1109/LES.2021.3137335
英文摘要Multiply and accumulate (MAC) composed of a set of multipliers and one reduction dominates the latency and power of convolutional neural network (CNN) accelerators. Existing approximate multipliers reduce latency and power at a tolerable drop in accuracy, without considering the data distribution (implicitly assuming that data are uniformly distributed). This letter discloses that practical CNNs' activations and weights are usually Gaussian-like distributed, and the bits of quantized activations and weights are typically not with a probability of 0.5. Thus, we propose an approximate MAC unit design by taking into account the statistical features of input data, to achieve a balanced tradeoff among latency, power, and accuracy. The extensive experiments show that our proposed MAC unit design provides much higher accuracy than state-of-the-art approximate circuits, while the latency, area, and power are similar.
资助项目National Natural Science Foundation of China (NSFC)[61834006] ; National Natural Science Foundation of China (NSFC)[62025404] ; National Natural Science Foundation of China (NSFC)[62122076] ; National Natural Science Foundation of China (NSFC)[62104229]
WOS研究方向Computer Science ; Engineering
语种英语
WOS记录号WOS:000848227900014
出版者IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
源URL[http://119.78.100.204/handle/2XEOYT63/19442]  
专题中国科学院计算技术研究所期刊论文_英文
通讯作者Chen, Xiaoming; Han, Yinhe
作者单位1.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
2.Chinese Acad Sci, Res Ctr Intelligent Comp Syst, Inst Comp Technol, Beijing 100190, Peoples R China
推荐引用方式
GB/T 7714		 Xiao, Hang,Xu, Haobo,Chen, Xiaoming,et al. Fast and High-Accuracy Approximate MAC Unit Design for CNN Computing[J]. IEEE EMBEDDED SYSTEMS LETTERS,2022,14(3):155-158.
APA Xiao, Hang,Xu, Haobo,Chen, Xiaoming,Wang, Yujie,&Han, Yinhe.(2022).Fast and High-Accuracy Approximate MAC Unit Design for CNN Computing.IEEE EMBEDDED SYSTEMS LETTERS,14(3),155-158.
MLA Xiao, Hang,et al."Fast and High-Accuracy Approximate MAC Unit Design for CNN Computing".IEEE EMBEDDED SYSTEMS LETTERS 14.3(2022):155-158.

入库方式： OAI收割

来源：计算技术研究所

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