Nearest Neighbour Classifiers for Streaming Data with Delayed Labelling

  • Authors:

  • Ludmila I. Kuncheva;J. Salvador Sánchez

  • Affiliations:

  • -;-

  • Venue:
  • ICDM '08 Proceedings of the 2008 Eighth IEEE International Conference on Data Mining
  • Year:
  • 2008

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Abstract

We study streaming data where the true labels come with a delay. The question is whether the online nearest neighbour classifier (IB2 and IB3 here) should employ the unlabelled data. Three strategies are examined: do-nothing, replace and forget. Experiments with 28 data sets show that IB2 benefits from unlabelled data, while IB3 does not.