Title :
TaylorBoost: First and second-order boosting algorithms with explicit margin control
Author :
Saberian, Mohammad J. ; Masnadi-Shirazi, Hamed ; Vasconcelos, Nuno
Author_Institution :
Dept. of Electr. & Comput. Eng., Univ. of California, San Diego, CA, USA
Abstract :
A new family of boosting algorithms, denoted Taylor-Boost, is proposed. It supports any combination of loss function and first or second order optimization, and includes classical algorithms such as AdaBoost, Gradient-Boost, or LogitBoost as special cases. Its restriction to the set of canonical losses makes it possible to have boosting algorithms with explicit margin control. A new large family of losses with this property, based on the set of cumulative distributions of zero mean random variables, is then proposed. A novel loss function in this family, the Laplace loss, is finally derived. The combination of this loss and second order TaylorBoost produces a boosting algorithm with explicit margin control.
Keywords :
Laplace equations; computer vision; learning (artificial intelligence); optimisation; Laplace loss; TaylorBoost; explicit margin control; first-order boosting algorithms; loss function; optimization; second-order boosting algorithms; Approximation methods; Boosting; Face; Logistics; Optimization; Taylor series; Training;
Conference_Titel :
Computer Vision and Pattern Recognition (CVPR), 2011 IEEE Conference on
Conference_Location :
Providence, RI
Print_ISBN :
978-1-4577-0394-2
DOI :
10.1109/CVPR.2011.5995605