

FOLLOWUS
Department of Computer Science, National Chiao Tung University, Taiwan 30050, Hsinchu
[ "Suiang-Shyan LEE, E-mail: ignoreswing.cs98g@g2.nctu.edu.tw" ]
[ "Ja-Chen LIN, E-mail: jclin@cs.nctu.edu.tw" ]
Received:22 March 2012,
Revised:2012-;9-11,
Published:2012-10
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Suiang-Shyan LEE, Ja-Chen LIN. An accelerated
Suiang-Shyan LEE, Ja-Chen LIN. An accelerated
The
K
-means method is a well-known clustering algorithm with an extensive range of applications
such as biological classification
disease analysis
data mining
and image compression. However
the plain
K
-means method is not fast when the number of clusters or the number of data points becomes large. A modified
K
-means algorithm was presented by
Fahim et al. (2006)
Fahim
et al
. (2006)
. The modified algorithm produced clusters whose mean square error was very similar to that of the plain
K
-means
but the execution time was shorter. In this study
we try to further increase its speed. There are two rules in our method: a selection rule
used to acquire a good candidate as the initial center to be checked
and an erasure rule
used to delete one or many unqualified centers each time a specified condition is satisfied. Our clustering results are identical to those of
Fahim et al. (2006)
Fahim
et al
. (2006)
. However
our method further cuts computation time when the number of clusters increases. The mathematical reasoning used in our design is included.
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