Adaptive Cross-Modal Few-Shot Learning

Mar 20, 2019 ICLR 2019 Workshop LLD Blind Submission readers: everyone
  • Keywords: few-shot learning, cross-modality
  • Abstract: Metric-based meta-learning techniques have successfully been applied to few-shot classification problems. However, leveraging cross-modal information in a few-shot setting has yet to be explored. When the support from visual information is limited in few-shot image classification, semantic representations (learned from unsupervised text corpora) can provide strong prior knowledge and context to help learning. Based on this intuition, we design a model that is able to leverage visual and semantic features in the context of few-shot classification. We propose an adaptive mechanism that is able to effectively combine both modalities conditioned on categories. Through a series of experiments, we show that our method boosts the performance of metric-based approaches by effectively exploiting language structure. Using this extra modality, our model bypass current unimodal state-of-the-art methods by a large margin on miniImageNet. The improvement in performance is particularly large when the number of shots are small.
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