Learning with Weak Supervision from Physics and Data-Driven Constraints

  • Hongyu Ren Peking University
  • Russell Stewart Stanford University
  • Jiaming Song Stanford University
  • Volodymyr Kuleshov Stanford University
  • Stefano Ermon Stanford University

Abstract

In many applications of machine learning, labeled data is scarce and obtaining additional labels is expensive. We introduce a new approach to supervising learning algorithms without labels by enforcing a small number of domain-specific constraints over the algorithms’ outputs. The constraints can be provided explicitly based on prior knowledge — e.g. we may require that objects detected in videos satisfy the laws of physics — or implicitly extracted from data using a novel framework inspired by adversarial training. We demonstrate the effectiveness of constraint-based learning on a variety of tasks — including tracking, object detection, and human pose estimation — and we find that algorithms supervised with constraints achieve high accuracies with only a small amount of labels, or with no labels at all in some cases.
Published
2018-03-27
How to Cite
Ren, H., Stewart, R., Song, J., Kuleshov, V., & Ermon, S. (2018). Learning with Weak Supervision from Physics and Data-Driven Constraints. AI Magazine, 39(1), 27-38. https://doi.org/10.1609/aimag.v39i1.2776
Section
Articles