Automatic Augmentation by Hill Climbing

• Tipo: Artigo em Livro de Atas de Conferência Internacional
• Data: 2019

Autores

Ricardo Cruz (Autor) Outra; Joaquim F. Pinto da Costa (Autor) FCUP; Jaime S. Cardoso (Autor) FEUP

Ata de Conferência Internacional

Título: ARTIFICIAL NEURAL NETWORKS AND MACHINE LEARNING - ICANN 2019: DEEP LEARNING, PT II

Páginas: 115-124

28th International Conference on Artificial Neural Networks (ICANN)

Tech Univ Munchen, Klinikum Rechts Isar, Munich, GERMANY, SEP 17-19, 2019

Indexação

ISI Web of Knowledge - 1 Citação

Scopus - 1 Citação

Outras Informações

ID Authenticus: P-00R-1ZW

DOI: 10.1007/978-3-030-30484-3_10

Abstract (EN): When learning from images, it is desirable to augment the dataset with plausible transformations of its images. Unfortunately, it is not always intuitive for the user how much shear or translation to apply. For this reason, training multiple models through hyperparameter search is required to find the best augmentation policies. But these methods are computationally expensive. Furthermore, since they generate static policies, they do not take advantage of smoothly introducing more aggressive augmentation transformations. In this work, we propose repeating each epoch twice with a small difference in data augmentation intensity, walking towards the best policy. This process doubles the number of epochs, but avoids having to train multiple models. The method is compared against random and Bayesian search for classification and segmentation tasks. The proposal improved twice over random search and was on par with Bayesian search for 4% of the training epochs.

Idioma: Inglês

Tipo (Avaliação Docente): Científica

Nº de páginas: 10