A Joint Learning Approach to Face Detection in Wavelet Compressed Domain

Table 1

Variants of the AdaBoost algorithm.

Algorithm	Authors and references	Description
AdaBoost	Freund and Schapire [22]	Original algorithm
RealBoost	Schapire and Singer [23]	A real version of weak hypothesis
AdaBoost.M1/M2	Freund and Schapire [22]	Multiple class extension of original AdaBoost algorithm
AdaBoost.R	Freund and Schapire [22]	Solving regression problems
AdaBoost.MO/MH/MR	Schapire and Singer [23]	Multiclass, multilabel extensions
Kullback-Leibler Boosting	Liu and Shum [40]	Incorporate Kullback-Leibler divergence into AdaBoost
FloatBoost	Li and Zhang [9]	Replace exponential error function by backtrack mechanism