[MAHOUT-723] Incorrect handling of NUM_CLUSTERS_OPTION in FuzzyKMeansDriver class

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 0.5, 0.6
• Fix Version/s: 0.6
• Component/s: classic

Environment

Mac OS X 10.6.7, Mahout 0.5/trunk

• Assignee: Sean R. Owen
• Reporter: Alex Ott
• Created: 05/Jun/11 14:04
• Updated: 31/Jan/24 22:14
• Resolved: 05/Jun/11 16:03

Description

the NUM_CLUSTERS_OPTION isn't handled correctly in the FuzzyKMeansDriver, so it leads to NPE when running fuzzy k-means clustering through command-line tool with following command:

bin/mahout fkmeans -i reuters-vectors/tfidf-vectors/ -c reuters-fkmeans-centroids -o reuters-fkmeans-clusters -dm org.apache.mahout.common.distance.SquaredEuclideanDistanceMeasure -x 10 -cl -k 21 -cd 1.0 -m 3 -ow