A new and relatively faster implementation of this algorithm exists in my “Online Multi-Class LPBoost” package. This package implements the “Online Random Forests” (ORF) algorithm of Saffari et al., ICCV-OLCV 2009 [1]. This algorithm extends the offline Random Forests (RF) to learn from online training data samples. ORF is a multi-class classifier which is able to learn the classifier without 1-vs