Dr. M. Seetha, S. M. D. P. V. S. S. “Unstructured Data Learning Using Relation Pattern Knowledge for Efficient Classification through Probabilistic Approach”. International Journal of Advanced Science and Technology, Vol. 28, no. 16, Dec. 2019, pp. 671 -79, http://sersc.org/journals/index.php/IJAST/article/view/1898.