Faculty of Information Technology, BUT

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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