2020

Identifying Mislabeled Data using the Area Under the Margin Ranking

Pleiss, Geoff, Zhang, Tianyi, Elenberg, Ethan R. et al.

Understand

Not all data in a typical training set help with generalization; some samples can be overly ambiguous or outrightly mislabeled.

  • This paper introduces a new method to identify such samples and mitigate their impact when training neural networks.
  • At the heart of our algorithm is the Area Under the Margin (AUM) statistic, which exploits differences in the training dynamics of clean and mislabeled samples.
  • A simple procedure - adding an extra class populated with purposefully mislabeled threshold samples - learns a AUM upper bound that isolates mislabeled data.

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