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A neural architecture generator for efficient search space

Jing, Kun ; Xu, Jungang ; Zhang, Zhen

Neurocomputing (Amsterdam), 2022-05, Vol.486, p.189-199 [Periódico revisado por pares]

Elsevier B.V

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  • Título:
    A neural architecture generator for efficient search space
  • Autor: Jing, Kun ; Xu, Jungang ; Zhang, Zhen
  • Assuntos: Generative adversarial network ; Graph neural network ; Large-scale architecture space ; Neural architecture generator ; Neural architecture search
  • É parte de: Neurocomputing (Amsterdam), 2022-05, Vol.486, p.189-199
  • Descrição: Neural architecture search (NAS) has made significant progress in recent years. However, the existing methods usually search architectures in a small-scale, well-designed architecture space, discover only one architecture in a single search, and hardly rework, which severely limits their potential. In this paper, we propose a novel neural architecture generator (NAG) that can efficiently sample architectures in a large-scale architecture space. Like a generative adversarial network (GAN), our model consists of two components: (1) a generator that can generate directed acyclic graphs (DAGs) as cells or blocks of neural architectures and (2) a discriminator that can estimate the probability that a DAG comes from cells of real architectures rather than the generator. Furthermore, we employ a random search with NAG (RS-NAG) to discover the optimal architecture according to the customized requirements. Experimental results show that the NAG can generate diverse architectures with our customized requirements multiple times after one adversary training. Furthermore, compared with the existing methods, our RS-NAG achieves the competitive results with 2.50% and 25.5% top-1 accuracies on two benchmark datasets – CIFAR-10 and ImageNet.
  • Editor: Elsevier B.V
  • Idioma: Inglês

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