1. Agarwal, H., Amni, A. (2006). Part of Speech Tagging and Chunking with Conditional Random Fields, in the proceedings of NLPAI Contest.
2. Avinesh, PVS., Karthik, G. (2006). Part-Of-Speech Tagging and Chunking using Conditional Random Fields and Transformation Based Learning, in the proceedings of NLPAI Contest.
3. Natural Language Processing: A Paninian Perspective;Bharati,1995
4. Black, E., et al. (1992). Decision tree models applied to the labeling of text with parts-of-speech. In Darpa Workshop on Speech and Natural Language.
5. Brill, E. (1992). A simple rule-based Parts of Speech tagger, in: Proceedings of ANLP-92, 3rd Conference on Applied Natural Language Processing, Trento, 152–155.