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Vector Quantization - K-Means

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Vector Quantization - K-Means

by Esfandiar Zavarehei

 

02 May 2006 (Updated 02 May 2006)

A simple algorithm for training codebooks for vector quantizationusing K-Means algorithm.

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This function is for training a codebook for vector quantization. The data set is split to two clusters, first, and the mean of each cluster is found (centroids). The disttance of each vector from these centroids is found and each vector is associated with a cluster. The mean of vectors of each cluster replaces the centroid first. If the total distance is not improved substantially, The centroids are each split to two. This goes on untill the required number of clusters is reached and the improvement is not substantial.

MATLAB release MATLAB 7 (R14)
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Comments and Ratings (3)
17 Jun 2007 mohsen sedaghat

signal processing

19 Aug 2008 ponraj meshach

good

12 Aug 2009 NOORITAWATI

What should be the value for X ? for command [M, P, DH]=VQSPLIT(X,L)

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Tag Activity for this File
Tag Applied By Date/Time
dsp Esfandiar Zavarehei 22 Oct 2008 08:24:10
vector quantization Esfandiar Zavarehei 22 Oct 2008 08:24:10
kmeans Esfandiar Zavarehei 22 Oct 2008 08:24:10
speech coding Esfandiar Zavarehei 22 Oct 2008 08:24:10
cluste Esfandiar Zavarehei 22 Oct 2008 08:24:10
speech processing Esfandiar Zavarehei 22 Oct 2008 08:24:10
cluste Liu Yung-Chih 13 Sep 2009 01:58:36
vector quantization Neelam Nanavare 24 Feb 2010 12:22:44
cluste Igor 18 Jan 2011 10:16:53
kmeans Maksim Norkin 29 Aug 2011 03:52:51
vector quantization Maksim Norkin 29 Aug 2011 03:52:54
vector quantization Chizzy 20 Oct 2011 05:39:19
cluste Fatih YARDIM 21 Dec 2011 03:56:32
cluste Asif 27 Dec 2011 11:17:06
dsp santos666 02 Feb 2012 07:46:29
cluste santos666 02 Feb 2012 07:46:31

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