Conference paper

SEKANINA Lukáš, MRÁZEK Vojtěch and VAŠÍČEK Zdeněk. Design Space Exploration for Approximate Implementations of Arithmetic Data Path Primitives. In: 25th IEEE International Conference on Electronics Circuits and Systems (ICECS). Bordeaux: IEEE Circuits and Systems Society, 2018, pp. 377-380. ISBN 978-1-5386-9562-3.
Publication language:english
Original title:Design Space Exploration for Approximate Implementations of Arithmetic Data Path Primitives
Title (cs):Prozkoumání návrhových alternativ pro aproximované implementace aritmetických obvodů datové cesty
Pages:377-380
Proceedings:25th IEEE International Conference on Electronics Circuits and Systems (ICECS)
Conference:25th IEEE International Conference on Electronics Circuits and Systems
Place:Bordeaux, FR
Year:2018
ISBN:978-1-5386-9562-3
DOI:10.1109/icecs.2018.8618048
Publisher:IEEE Circuits and Systems Society
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Keywords
approximate circuit, dot product, Pareto front, parameter estimation
Annotation
While a detailed analysis of various approximation strategies for elementary arithmetic circuits (such as adders and multipliers) is widely covered in the literature, much less is known about approximate arithmetic data path primitives (such as Dot Product (DP) to name one example) because it is difficult to exactly analyze their error and other parameters. We provide a detailed analysis of approximation options if a two-dimensional DP circuit is implemented using pre-characterized approximate arithmetic circuits available in existing libraries of approximate circuits. We propose a method capable to cheaply estimate properties of candidate approximate implementations of DP circuit. By a careful selection of approximate components, hundreds of approximate DP circuits showing excellent tradeoffs between key design objectives were obtained. 
BibTeX:
@INPROCEEDINGS{
   author = {Luk{\'{a}}{\v{s}} Sekanina and Vojt{\v{e}}ch
	Mr{\'{a}}zek and Zden{\v{e}}k
	Va{\v{s}}{\'{i}}{\v{c}}ek},
   title = {Design Space Exploration for Approximate
	Implementations of Arithmetic Data Path Primitives},
   pages = {377--380},
   booktitle = {25th IEEE International Conference on Electronics Circuits
	and Systems (ICECS)},
   year = 2018,
   location = {Bordeaux, FR},
   publisher = {IEEE Circuits and Systems Society},
   ISBN = {978-1-5386-9562-3},
   doi = {10.1109/icecs.2018.8618048},
   language = {english},
   url = {http://www.fit.vutbr.cz/research/view_pub.php.en.iso-8859-2?id=11765}
}

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