Discriminative Hidden Markov Modeling with Long State Dependence using a kNN Ensemble GuoDong Zhou author 2004-aug 23–aug 27 text COLING 2004: Proceedings of the 20th International Conference on Computational Linguistics COLING Geneva, Switzerland conference publication zhou-2004-discriminative https://aclanthology.org/C04-1004/ 2004-aug 23–aug 27 22 28