2015

Metric Learning with Adaptive Density Discrimination

Rippel, Oren, Paluri, Manohar, Dollar, Piotr et al.

Understand

Distance metric learning (DML) approaches learn a transformation to a representation space where distance is in correspondence with a predefined notion of similarity.

  • While such models offer a number of compelling benefits, it has been difficult for these to compete with modern classification algorithms in performance and even in feature extraction.
  • In this work, we propose a novel approach explicitly designed to address a number of subtle yet important issues which have stymied earlier DML algorithms.
  • It maintains an explicit model of the distributions of the different classes in representation space.

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