i.Boosting for Image Classification
Yijuan Lu; Tong Zhang; Qi Tian
Multimedia and Expo, 2007 IEEE International Conference on
Volume , Issue , 2-5 July 2007 Page(s):1711 - 1714
Digital Object Identifier 10.1109/ICME.2007.4284999
Summary:Traditional boosting method like adaboost, boosts a weak learning algorithm by updating the sample weights (the relative importance of the training samples) iteratively. In this paper, we propose to integrate feature re-weighting into boosting scheme, which not only weights the samples but also weights the feature elements iteratively. To avoid overfitting problem caused by feature re-weighting on a small training data set, we also incorporate relevance feedback into boosting and propose an interactive boosting called i.Boosting. It merges adaboost, feature re-weighting and relevance feedback into one framework and exploits the favorable attributes of these methods. In this paper, i.Boosting is implemented using Adaptive Discriminant Analysis (ADA) as base classifiers. It not only enhances but also combines a set of ADA classifiers into a more powerful one. A specific feature re-weighting method for ADA is also proposed and integrated in i.Boosting. Extensive experiments show the superior performance of i.Boosting over AdaBoost and other state-of-the-art projection-based classifiers.
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