IEEE Computational Intelligence Magazine - August 2021 - 22
Fast and Unsupervised
Neural Architecture Evolution
for Visual Representation
Learning
Song Xue, and Hanlin Chen
Beihang University, CHINA
Chunyu Xie
Qihoo 360 AI Research, CHINA; Beihang University, CHINA
Baochang Zhang
Beihang University, CHINA
Xuan Gong, and David Doermann
University at Buffalo, USA
Abstract-Unsupervised visual representation learning is one
of the hottest topics in computer vision, yet performance still
lags behind compared with the best supervised learning methods.
At the same time, neural architecture search (NAS) has produced
state-of-the-art results on various visual tasks. It is a
natural idea to explore NAS as a way to improve unsupervised
representation learning, yet it remains largely unexplored. In this
paper, we propose a Fast and Unsupervised Neural Architecture
Evolution (FaUNAE) method to evolve an existing architecture,
manually constructed or the result of NAS on a small dataset, to
a new architecture that can operate on a larger dataset. This partial
optimization can utilize prior knowledge to reduce search
cost and improve search efficiency. The evolution is self-supervised
where the contrast loss is used as the evaluation metric in
Digital Object Identifier 10.1109/MCI.2021.3084394
Date of current version: 15 July 2021
22 IEEE COMPUTATIONAL INTELLIGENCE MAGAZINE | AUGUST 2021
Corresponding author: Baochang Zhang (e-mail: bczhang@buaa.edu.cn).
Co-first authors: Song Xue, and Hanlin Chen
1556-603X/21©2021IEEE
©SHUTTERSTOCK.COM/OMELCHENKO
http://www.SHUTTERSTOCK.COM/OMELCHENKO
IEEE Computational Intelligence Magazine - August 2021
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