English

Few-shot learning via tensor hallucination

Computer Vision and Pattern Recognition 2021-04-20 v1

Abstract

Few-shot classification addresses the challenge of classifying examples given only limited labeled data. A powerful approach is to go beyond data augmentation, towards data synthesis. However, most of data augmentation/synthesis methods for few-shot classification are overly complex and sophisticated, e.g. training a wGAN with multiple regularizers or training a network to transfer latent diversities from known to novel classes. We make two contributions, namely we show that: (1) using a simple loss function is more than enough for training a feature generator in the few-shot setting; and (2) learning to generate tensor features instead of vector features is superior. Extensive experiments on miniImagenet, CUB and CIFAR-FS datasets show that our method sets a new state of the art, outperforming more sophisticated few-shot data augmentation methods.

Keywords

Cite

@article{arxiv.2104.09467,
  title  = {Few-shot learning via tensor hallucination},
  author = {Michalis Lazarou and Yannis Avrithis and Tania Stathaki},
  journal= {arXiv preprint arXiv:2104.09467},
  year   = {2021}
}

Comments

Accepted as oral at ICLR2021 workshop: "Synthetic Data Generation: Quality, Privacy, Bias"

R2 v1 2026-06-24T01:20:22.834Z