Few-shot learning and self-supervised learning address different facets of the same problem: how to train a model with little or no labeled data. Few-shot learning aims for optimization methods and models that can learn efficiently to recognize patterns in the low data regime. Self-supervised learning focuses instead on unlabeled data and looks into it for the supervisory signal to feed high capacity deep neural networks. In this work we exploit the complementarity of these two domains and propose an approach for improving few-shot learning through self-supervision. We use self-supervision as an auxiliary task in a few-shot learning pipeline, enabling feature extractors to learn richer and more transferable visual representations while still using few annotated samples. Through self-supervision, our approach can be naturally extended towards using diverse unlabeled data from other datasets in the few-shot setting. We report consistent improvements across an array of architectures, datasets and self-supervision techniques.

本文提出一种通过自我监督来改善少样本学习的方法，使特征提取器可以在使用少量带注释样本的同时学习更丰富和更具可转移性的视觉表征，该方法可以自然地扩展到从其他数据集中使用多样化的带标签数据的情况，并在各种架构，数据集和自我监督技术上实现了始终如一的改进。

通过自监督来增强少样本视觉学习