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RankNAS: Efficient Neural Architecture Search by Pairwise Ranking

الرحلة: البحث العماري العصبي الفعال البحث عن طريق الترتيب الزوجي

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 Publication date 2021
and research's language is English
 Created by Shamra Editor




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This paper addresses the efficiency challenge of Neural Architecture Search (NAS) by formulating the task as a ranking problem. Previous methods require numerous training examples to estimate the accurate performance of architectures, although the actual goal is to find the distinction between good'' and bad'' candidates. Here we do not resort to performance predictors. Instead, we propose a performance ranking method (RankNAS) via pairwise ranking. It enables efficient architecture search using much fewer training examples. Moreover, we develop an architecture selection method to prune the search space and concentrate on more promising candidates. Extensive experiments on machine translation and language modeling tasks show that RankNAS can design high-performance architectures while being orders of magnitude faster than state-of-the-art NAS systems.



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