Publication Details

Automated Circuit Approximation Method Driven by Data Distribution

VAŠÍČEK Zdeněk, MRÁZEK Vojtěch and SEKANINA Lukáš. Automated Circuit Approximation Method Driven by Data Distribution. In: Design, Automation and Test in Europe Conference. Florence: European Design and Automation Association, 2019, pp. 96-101. ISBN 978-3-9819263-2-3.
Czech title
Automatizovaná metoda aproximace obvodů řízená distribucí dat
Type
conference paper
Language
english
Authors
Keywords
digital circuit, approximate circuit, functional approximation, neural network
Abstract
We propose an application-tailored data-driven fully automated method for functional approximation of combinational circuits. We demonstrate how an application-level error metric such as the classification accuracy can be translated to a component-level error metric needed for an efficient and fast search in the space of approximate low-level components that are used in the application. This is possible by employing a weighted mean error distance (WMED) metric for steering the circuit approximation process which is conducted by means of genetic programming. WMED introduces a set of weights (calculated from the data distribution measured on a selected signal in a given application) determining the importance of each input vector for the approximation process. The method is evaluated using synthetic benchmarks and application-specific approximate MAC (multiply-and-accumulate) units that are designed to provide the best trade-offs between the classification accuracy and power consumption of two image classifiers based on neural networks.
Published
2019
Pages
96-101
Proceedings
Design, Automation and Test in Europe Conference
Conference
Design, Automation and Test in Europe Conference, Florencie, IT
ISBN
978-3-9819263-2-3
Publisher
European Design and Automation Association
Place
Florence, IT
DOI
BibTeX
@INPROCEEDINGS{FITPUB11821,
   author = "Zden\v{e}k Va\v{s}\'{i}\v{c}ek and Vojt\v{e}ch Mr\'{a}zek and Luk\'{a}\v{s} Sekanina",
   title = "Automated Circuit Approximation Method Driven by Data Distribution",
   pages = "96--101",
   booktitle = "Design, Automation and Test in Europe Conference",
   year = 2019,
   location = "Florence, IT",
   publisher = "European Design and Automation Association",
   ISBN = "978-3-9819263-2-3",
   doi = "10.23919/DATE.2019.8714977",
   language = "english",
   url = "https://www.fit.vut.cz/research/publication/11821"
}
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