We provide an abstract characterization of boosting algorithms as gradient decsent on cost-functionals in an inner-product function space. We prove convergence of these functional-gradient-descent algorithms under quite weak conditions. Following previous theoretical results bounding the generalization performance of convex combinations of classifiers in terms of general cost functions of the margin, we present a new algorithm (DOOM II) for performing a gradient descent optimization of such cost functions. Experiments on several data sets from the UC Irvine repository demonstrate that DOOM II generally outperforms AdaBoost, especially in high noise situations, and that the overfitting behaviour of AdaBoost is predicted by our cost functions
In recent decades, boosting methods have emerged as one of the leading ensemble learning techniques....
We analyze boosting algorithms [Ann. Statist. 29 (2001) 1189–1232; Ann. Statist. 28 (2000) 337–407; ...
AbstractLearning gradients is one approach for variable selection and feature covariation estimation...
Gradient boosting is a state-of-the-art prediction technique that sequentially produces a model in t...
Gradient boosting is a state-of-the-art prediction technique that sequentially produces a model in t...
Gradient boosting is a state-of-the-art prediction technique that sequentially produces a model in t...
The superior out-of-sample performance of AdaBoost has been attributed to the fact that it minimizes...
The superior out-of-sample performance of AdaBoost has been attributed to the fact that it minimizes...
We present an extended abstract about boosting. We describe first in section 1 (in a self-contained ...
Boosting is a popular way to derive power-ful learners from simpler hypothesis classes. Following pr...
Boosting, as one of the state-of-the-art classification approaches, is widely used in the industry f...
Recent theoretical results have shown that the generalization performance of thresholded convex comb...
International audienceA general framework is proposed for gradient boosting in supervised learning p...
In recent decades, boosting methods have emerged as one of the leading ensemble learning techniques....
In recent decades, boosting methods have emerged as one of the leading ensemble learning techniques....
In recent decades, boosting methods have emerged as one of the leading ensemble learning techniques....
We analyze boosting algorithms [Ann. Statist. 29 (2001) 1189–1232; Ann. Statist. 28 (2000) 337–407; ...
AbstractLearning gradients is one approach for variable selection and feature covariation estimation...
Gradient boosting is a state-of-the-art prediction technique that sequentially produces a model in t...
Gradient boosting is a state-of-the-art prediction technique that sequentially produces a model in t...
Gradient boosting is a state-of-the-art prediction technique that sequentially produces a model in t...
The superior out-of-sample performance of AdaBoost has been attributed to the fact that it minimizes...
The superior out-of-sample performance of AdaBoost has been attributed to the fact that it minimizes...
We present an extended abstract about boosting. We describe first in section 1 (in a self-contained ...
Boosting is a popular way to derive power-ful learners from simpler hypothesis classes. Following pr...
Boosting, as one of the state-of-the-art classification approaches, is widely used in the industry f...
Recent theoretical results have shown that the generalization performance of thresholded convex comb...
International audienceA general framework is proposed for gradient boosting in supervised learning p...
In recent decades, boosting methods have emerged as one of the leading ensemble learning techniques....
In recent decades, boosting methods have emerged as one of the leading ensemble learning techniques....
In recent decades, boosting methods have emerged as one of the leading ensemble learning techniques....
We analyze boosting algorithms [Ann. Statist. 29 (2001) 1189–1232; Ann. Statist. 28 (2000) 337–407; ...
AbstractLearning gradients is one approach for variable selection and feature covariation estimation...