A Second-Order Hidden Markov Model for Part-of-Speech Tagging Scott M Thede author Mary P Harper author 1999-06 text Proceedings of the 37th Annual Meeting of the Association for Computational Linguistics Association for Computational Linguistics College Park, Maryland, USA conference publication thede-harper-1999-second 10.3115/1034678.1034712 https://aclanthology.org/P99-1023/ 1999-06 175 182