## Deep k-NN for Noisy Labels

### Dara Bahri · Heinrich Jiang · Maya Gupta

Keywords: [ Information Theory and Estimation ] [ Learning Theory ] [ Supervised Learning ] [ Other ]

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Abstract: Modern machine learning models are often trained on examples with noisy labels that hurt performance and are hard to identify. In this paper, we provide an empirical study showing that a simple $k$-nearest neighbor-based filtering approach on the logit layer of a preliminary model can remove mislabeled training data and produce more accurate models than many recently proposed methods. We also provide new statistical guarantees into its efficacy.