Elefant (Efficient Learning, Large-scale Inference, and Optimisation Toolkit) is an open source library for machine learning licensed under the Mozilla Public License (MPL). We develop an open source machine learning toolkit which provides

algorithms for machine learning utilising the power of multi-core/multi-threaded processors/operating systems (Linux, WIndows, Mac OS X),
a graphical user interface for users who want to quickly prototype machine learning experiments,
tutorials to support learning about Statistical Machine Learning (Statistical Machine Learning at The Australian National University), and
detailed and precise documentation for each of the above.