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Few-Shot Image Classification via Contrastive Self-Supervised Learning by Li, Jianyi; Liu, Guizhong is a scholarly article available to read on EtoBox.

What is Few-Shot Image Classification via Contrastive Self-Supervised Learning about?

Most previous few-shot learning algorithms are based on meta-training with fake few-shot tasks as training samples, where large labeled base classes are required. The trained model is also limited by the type of tasks. In this paper we propose a new paradigm of unsupervised few-shot learning to repair the deficiencies. We solve the few-shot tasks in two phases: meta-training a transferable feature extractor via contrastive self-supervised learning and training a classifier using graph aggregation, self-distillation and manifold augmentation. Once meta-trained, the model can be used in any type of tasks with a task-dependent classifier training. Our method achieves state of-the-art performance in a variety of established few-shot tasks on the standard few-shot visual classification datasets, with an 8- 28% increase compared to the available unsupervised few-shot learning methods.

Author

Li, Jianyi; Liu, Guizhong

Published

2020

Language

EN