G. Kothari, A. Ahuje, A. Patel, and A. Khilari. International Journal on Recent and Innovation Trends in Computing and Communication, 3 (4):
1802--1806(April 2015)
L. Ratinov, and D. Roth. Proceedings of the Thirteenth Conference on Computational Natural Language Learning, page 147--155. Stroudsburg, PA, USA, Association for Computational Linguistics, (2009)
X. Li, C. Zhou, W. Xiao, and P. Nelson. The Fourth International Conference on Machine
Learning and Applications (ICMLA'05), page 337--342. Los Angeles, California, IEEE press, (December 2005)