A discriminant based document analysis for text classification

Text classification technologies rely heavily on the distribution of features, and the selection of discriminant features with regards to the classes as the main basis for classification. In this paper, we propose the discriminant coefficient to represent the features of a document. Based on the discriminant coefficient, the classification coefficient for each document class is defined and computed. Then, a correlation measure approach is designed for text classification. The experimental results show that the proposed approach of document analysis has good effectiveness in comparison with the method of TF-IDF with cosine similarity for a single class text classification. Especially, as a document set with nearly equivalent number of documents for each class, the proposed approach can achieve better results than the traditional vector based methods.