Journal
APPLIED INTELLIGENCE
Volume 24, Issue 3, Pages 219-226Publisher
SPRINGER
DOI: 10.1007/s10489-006-8513-8
Keywords
classification; supervised clustering; weighted metrics; simulated annealing; supervised k-means
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k-means is traditionally viewed as an algorithm for the unsupervised clustering of a heterogeneous population into a number of more homogeneous groups of objects. However, it is not necessarily guaranteed to group the same types (classes) of objects together. In such cases, some supervision is needed to partition objects which have the same label into one cluster. This paper demonstrates how the popular k-means clustering algorithm can be profitably modified to be used as a classifier algorithm. The output field itself cannot be used in the clustering but it is used in developing a suitable metric defined on other fields. The proposed algorithm combines Simulated Annealing with the modified k-means algorithm. We apply the proposed algorithm to real data sets, and compare the output of the resultant classifier to that of C4.5.
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