From the webpage:
MADlib is an open-source library for scalable in-database analytics. It provides data-parallel implementations of mathematical, statistical and machine-learning methods for structured and unstructured data.
The MADlib mission: to foster widespread development of scalable analytic skills, by harnessing efforts from commercial practice, academic research, and open-source development.
Until the Impala post called my attention to it, I didn’t realize that MADlib had an upgrade earlier in October to 1.3!
Congratulations to MADlib!