Title :
Genetic-based K-means algorithm for selection of feature variables
Author :
Yu, Zhiwen ; Wong, Hau-San
Author_Institution :
Dept. of Comput. Sci., City Univ. of Hong Kong
Abstract :
This paper proposes a genetic-based K-means (GK) algorithm for selection of the k value and selection of feature variables by minimizing an associated objective function. The algorithm combines the advantage of genetic algorithm (GA) and K-means to search the subspace thoroughly. Therefore, our algorithm converges globally. A weighting junction is then introduced to initialize the parameters of the algorithm. The experiments on a synthetic dataset and a real dataset shows that (i) GK outperforms K-means since GK achieves the minimal value of the objective junction and (ii) GK with the weighting function performs better than GK
Keywords :
feature extraction; genetic algorithms; search problems; associated objective function; feature variables selection; genetic-based K-means algorithm; real dataset; synthetic dataset; Additives; Clustering algorithms; Computer science; Data mining; Genetics; Input variables; Iterative algorithms; Partitioning algorithms; Space exploration; Spatial databases;
Conference_Titel :
Pattern Recognition, 2006. ICPR 2006. 18th International Conference on
Conference_Location :
Hong Kong
Print_ISBN :
0-7695-2521-0
DOI :
10.1109/ICPR.2006.603