The UPGMA algorithm

The UPGMA (Unweighted Pair Group Method with Arithmetic Mean) is a simple agglomerative or hierarchical clustering method. It is one of the most popular methods in ecology for the classification…

Supervised vs. Unsupervised learning

Machine learning algorithms are described as either ‘supervised’ or ‘unsupervised’. The distinction is drawn from how the learner classifies data. In supervised algorithms, the classes are predetermined. These classes can…

Categorical Clustering vs Topical Clustering

In this post, I will give you some useful references about these two types of clustering methods: categorical vs topical clustering. Categorical Clustering: ROCK algorithm http://rss.acs.unt.edu/Rdoc/library/cba/html/rockCluster.html http://en.wikibooks.org/wiki/Data_Mining_Algorithms_In_R/Clustering/RockCluster Topical Clustering: Sahimi…

Data Clustering

http://jamesmccaffrey.wordpress.com/2013/05/06/data-clustering-using-category-utility/ http://msdn.microsoft.com/en-us/magazine/dn198247.aspx

Cluster Analysis

Statistica http://www.statsoft.com/textbook/cluster-analysis/