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…

Cluster Analysis in R

R has an amazing variety of functions for cluster analysis. In this section, I will describe three of the many approaches: hierarchical agglomeration  partitioning, and model based. While there are no best solutions for the…