Saha, SBandyopadhyay, Sanghamitra2011-08-122011-08-122007Proceedings of the IEEE international conference on system, man and cybernetics,P462-467http://hdl.handle.net/10263/2517enUnsupervised classificationCluster validity indexSymmetryPoint symmetry based distanceKd treeRemote sensing imageryA validity index based on cluster symmetryArticle