Which machine learning library to use [closed]

Answer 1

A couple of additional possible choices:

Conditional Random Fields (CRF): http://www.chokkan.org/software/crfsuite/

Hidden Markov Models (HMM): http://www.cs.au.dk/~asand/?page_id=152

For a general ML library, consider Torch (version 7, as of the time of writing): https://github.com/andresy/torch

The Orange system is implemented in C++ and can be used as a library, but focuses on exposing its functionality both as Python wrappers for flexible scripting as well as visual programming: http://orange.biolab.si/