2019

Variational Adversarial Active Learning

Sinha, Samarth, Ebrahimi, Sayna, Darrell, Trevor

Understand

Active learning aims to develop label-efficient algorithms by sampling the most representative queries to be labeled by an oracle.

  • We describe a pool-based semi-supervised active learning algorithm that implicitly learns this sampling mechanism in an adversarial manner.
  • Unlike conventional active learning algorithms, our approach is task agnostic, i.e., it does not depend on the performance of the task for which we are trying to acquire labeled data.
  • Our method learns a latent space using a variational autoencoder (VAE) and an adversarial network trained to discriminate between unlabeled and labeled data.

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