A Survey of Approximate Computing: From Arithmetic Units Design to High-Level Applications

Realizing a high-performance and energy-efficient circuit system is one of the critical tasks for circuit designers. Conventional researchers always concentrated on the tradeoffs between the energy and the performance in circuit and system design based on accurate computing. However, as video/image...

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Bibliographic Details
Published in:Journal of computer science and technology 2023-04, Vol.38 (2), p.251-272
Main Authors: Que, Hao-Hua, Jin, Yu, Wang, Tong, Liu, Ming-Kai, Yang, Xing-Hua, Qiao, Fei
Format: Article
Language:English
Subjects:
Accuracy
Algorithms
Approximation
Arithmetic and logic units
Artificial Intelligence
CMOS
Computation
Computer engineering
Computer Science
Data Structures and Information Theory
Design
Embedded systems
Energy consumption
Energy efficiency
Image processing
Image quality
Information Systems Applications (incl.Internet)
Integrated circuits
Machine learning
Software
Software Engineering
Survey
Systems design
Theory of Computation
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Summary:Realizing a high-performance and energy-efficient circuit system is one of the critical tasks for circuit designers. Conventional researchers always concentrated on the tradeoffs between the energy and the performance in circuit and system design based on accurate computing. However, as video/image processing and machine learning algorithms are widespread, the technique of approximate computing in these applications has become a hot topic. The errors caused by approximate computing could be tolerated by these applications with specific processing or algorithms, and large improvements in performance or power savings could be achieved with some acceptable loss in final output quality. This paper presents a survey of approximate computing from arithmetic units design to high-level applications, in which we try to give researchers a comprehensive and insightful understanding of approximate computing. We believe that approximate computing will play an important role in the circuit and system design in the future, especially with the rapid development of artificial intelligence algorithms and their related applications.
ISSN:1000-9000
1860-4749
DOI:10.1007/s11390-023-2537-y