Hierarchical Approach to Select Feature Vectors for Classification of Text Documents. - Nagesh Kapalavayi; S. N. Jayaram Murthy; Gongzhu Hu (AICCSA, 2006)

Document classification efficiency of phrase-based techniques. - Nagesh Kapalavayi; S. N. Jayaram Murthy; Gongzhu Hu (AICCSA, 2009)