“…The most often used classifiers fusion approaches include the majority voting (Xu et al, 1992); the weighted combination (weighted averaging) (Kuncheva, 2004); the probabilistic schemes (Kittler et al, 1997;Kittler et al, 1998) ; various rank-ordered rules, such as the Borda count (Ho et al, 1994;E. Kim et al, 2002); the sum rule (averaging), product-rule, max-rule, minrule, median rule (Kittler et al, 1998); the Bayesian approach (naïve Bayes combination) (Altincay, 2005;Kuncheva, 2004;Xu et al,1992); the Dempster-Shafer (D-S) theory of evidence (Denoeux, 1995;Xu et al, 1992); the behavior-knowledge space method (BKS) (Huang & Suen, 1995;Shipp & Kuncheva, 2002); the fuzzy integral (Chi et al, 1996;Kuncheva, 2004;Mirhosseini et al, 1998); fuzzy templates (Kuncheva et al, 1998); decision templates (Kuncheva, 2001(Kuncheva, , 2004; combination through order statistics (Kang et al, 1997a(Kang et al, , 1997b; combination by a neural network (Ceccareli & Petrosino, 1997). In a recent review paper (Oza & Tumer, 2008) a summary of the leading ensemble methods and a discussion of their application to four broad classes of real-world classification problems is provided.…”