The Generalized vector space model is a generalization of the vector space model used in information retrieval. Many classifiers, especially those which are related to document or text classification, use the TFIDF basis of VSM. However, this is where the similarity between the models ends – the generalized model uses the results of the TFIDF dictionary to generate similarity metrics based on distance or angle difference, rather than centroid based classification. Wong et al. presented an analysis of the problems that the pairwise orthogonality assumption of the vector space model (VSM) creates. From here they extended the VSM to the generalized vector space model (GVSM). … Generalized Vector Space Model (GVSM)