Knowtator: A Protégé plug-in for annotated corpus construction Philip V Ogren author 2006-06 text Proceedings of the Human Language Technology Conference of the NAACL, Companion Volume: Demonstrations Alex Rudnicky editor John Dowding editor Natasa Milic-Frayling editor Association for Computational Linguistics New York City, USA conference publication ogren-2006-knowtator https://aclanthology.org/N06-4006/ 2006-06 273 275