A class-dependent weighted dissimilarity measure for nearest neighbor classification problems

被引:52
作者
Paredes, R [1 ]
Vidal, E [1 ]
机构
[1] Univ Politecn Valencia, Inst Tecnol Informat, E-46071 Valencia, Spain
关键词
nearest neighbour classification; weighted dissimilarity measures; iterative optimization; fractional programming;
D O I
10.1016/S0167-8655(00)00064-7
中图分类号
TP18 [人工智能理论];
学科分类号
081104 ; 0812 ; 0835 ; 1405 ;
摘要
A class-dependent weighted (CDW) dissimilarity measure in vector spaces is proposed to improve the performance of the nearest neighbor (NN) classifier. In order to optimize the required weights, an approach based on Fractional Programming is presented. Experiments with several standard benchmark data sets show the effectiveness of the proposed technique. (C) 2000 Published by Elsevier Science B.V.
引用
收藏
页码:1027 / 1036
页数:10
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