MOA (Massive Online Analysis) is a free open-source software specific for Data stream mining with Concept drift. It’s written in Java and developed at the University of Waikato, New Zealand. MOA is an open-source framework software that allows to build and run experiments of machine learning or data mining on evolving data streams. It includes a set of learners and stream generators that can be used from the Graphical User Interface (GUI), the command-line, and the Java API. MOA contains several collections of machine learning algorithms for classification, regression, clustering, outlier detection and recommendation engines.
http://moa.cms.waikato.ac.nz … Massive Online Analysis (MOA)