Learning to Propagate Labels: Transductive Propagation Network for Few-shot Learning. ICLR'19

Abstract

  • even with such meta-learning, the low-data problem in the novel classification task still remains. In this paper, we propose Transductive Propagation Network (TPN), a novel meta-learning framework for transductive inference that classifies the entire test set at once to alleviate the low-data problem.
  • we propose to learn to propagate labels from labeled instances to unlabeled test instances, by learning a graph construction module that exploits the manifold structure in the data. TPN jointly learns both the parameters of feature embedding and the graph construction in an end-to-end manner.

3 Main Approach

3.1 Problem Definition

  • We follow the episodic paradigm (from MatchingNet) that effectively trains a meta-learner for fewshot classification tasks, which is commonly employed in various literature, like: ProtoNet, MAML, Reptile, RelationNet, SNAIL
tags: fewshot learning
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