Data clustering, or cluster analysis, is the process of grouping data items so that similar items belong to the same group/cluster. There are many clustering techniques. In this article I'll explain ...

If your data is completely numeric, then the k-means technique is simple and effective. But if your data contains non-numeric data (also called categorical data) then clustering is surprisingly ...

Apache Spark, the big data processing framework that is a fixture of many Hadoop installs, has reached its 1.4 incarnation. With it comes support for R and Python 3 — two languages in wide use ...