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Spherical K-means

30 Sep 2010 (Updated 04 Feb 2012)

A kmeans like clustering algorithm to cluster data on a unit sphere.

File Information
Description	Data are distributed on an unit sphere. i.e. data are normalized. Spherical k-means is the K-means algorithm on sphere, which groups data with small angels into the same cluster.
MATLAB release	MATLAB 7.11 (2010b)

Comments and Ratings (2)
21 Jun 2011	Nirmal	spkmeans(data,3) gives me ans = 1 1 1 1 I am using the IRIS data. Even if I transpose the data before clustering all the data will be in the same cluster. The implementation doesnt seem to work.
07 Feb 2012	Mo Chen	your input is not right. the function assumes dxn matrix. even the result is not expected, it only means, this algorithm is not suitable for your data. it does not mean the implementation is wrong.

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Updates
04 Feb 2012	tuning

Tag Activity for this File
Tag	Applied By	Date/Time
clustering	Mo Chen	01 Oct 2010 10:38:19