GestureRecognitionToolkit  Version: 1.0 Revision: 04-03-15
The Gesture Recognition Toolkit (GRT) is a cross-platform, open-source, c++ machine learning library for real-time gesture recognition.
ClassificationModulesExamples/RandomForestsExample/RandomForestsExample.cpp
Remarks
This implementation is based on Breiman, Leo. "Random forests." Machine learning 45, no. 1 (2001): 5-32.