To improve the performance of multiple classifier system, a knowledge discovery based dynamic weighted

voting (KD-DWV) is proposed based on knowledge discovery. In the method, all base classifiers may be allowed to

operate in different measurement/ feature spaces to make the most of diverse classification informatioa The weights

assigned to each output of a base classifier are estimated by the separability of training sample sets in relevant feature space. For this purpose, some decision tables (DTs) are established in terms of the diverse feature sets. And

then the uncertainty measures of the separability are induced, in the form of mass functions in Dempster-Shafer theory (DST), from each DTs based on generalized rough set model. From the mass functions, all the weights are calculated by a modified heuristic fusion function and assigned dynamically to each classifier varying with its output

The comparison experiment is performed on the hyperspectral remote sensing images. And the experimental results

show that the performance of the classification can be improved by using the proposed method compared with the

plurality voting (PV)

multiple classifier fusion, dynamic weighted voting, generalized rough set, hyperspectral