The aim of computational learning algorithm is to establish grounds that work for any types of data, once
and for all. However, majority of the classifiers have their base from balanced datasets. This paper discusses
the issues related to imbalanced data distribution problem and the common strategy to deal with
imbalance datasets. We propose a model capable of handling imbalance datasets well in which other typical
classifiers fail to do so. The model adopted a derivation of support vector machines in selecting variables
so that the problem of imbalanced data distribution can be relaxed. Then, we used an Emergent
Self-Organizing Map (ESOM) to cluster the ranker features so as to provide clusters for unsupervised classification.
This work progresses by examining the efficiency of the model in evaluating imbalanced datasets.
Experimental results show that the criterion based on weight vector derivative achieves good results
and performs consistently well over imbalance datasets. In general, our approach outperforms other
classification methods which are unable to handle the imbalanced data distribution in the testing
datasets.