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Classification by pairwise coupling. (English) Zbl 0932.62071
Summary: We discuss a strategy for polychotomous classification that involves estimating class probabilities for each pair of classes, and then coupling the estimates together. The coupling model is similar to the Bradley-Terry method for paired comparisons [{\it R. A. Bradley} and {\it M. E. Terry}, Biometrika 39, 324-345 (1952; Zbl 0047.12903)]. We study the nature of the class probability estimates that arise, and examine the performance of the procedure in real and simulated data sets. Classifiers used include linear discriminants, nearest neighbors, adaptive nonlinear methods and the support vector machine.

62H30Classification and discrimination; cluster analysis (statistics)
62J15Paired and multiple comparisons
68T10Pattern recognition, speech recognition
Full Text: DOI
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