Learning of Regular Bi-omega Languages. - D. Gnanaraj Thomas; M. Humrosia Begam; K. G. Subramanian 001; S. Gnanasekaran (ICGI, 2002)

Circular Languages and Learning Algorithms. - D. Gnanaraj Thomas; V. Rajkumar Dare; T. Robinson 001; M. Humrosia Begam (IICAI, 2005)

Hexagonal Array Acceptors and Learning. - D. Gnanaraj Thomas; M. Humrosia Begam; N. Gnanamalar David; Colin de la Higuera (Formal Models, Languages and Applications, 2007)

Learning of Regular omega-Tree Languages. - M. Jayasrirani; M. Humrosia Begam; D. Gnanaraj Thomas (ICGI, 2008)

Parallel Contextual Hexagonal Array Grammars and Languages. - D. Gnanaraj Thomas; M. Humrosia Begam; N. Gnanamalar David (IWCIA, 2009)

Learning of Bi-ω Languages from Factors. - M. Jayasrirani; M. Humrosia Begam; D. Gnanaraj Thomas; J. D. Emerald (ICGI, 2012)