Adaptive Language Modeling Using Minimum Discriminant Estimation S Della Pietra author V Della Pietra author R L Mercer author S Roukos author 1992 text Speech and Natural Language: Proceedings of a Workshop Held at Harriman, New York, February 23-26, 1992 conference publication della-pietra-etal-1992-adaptive https://aclanthology.org/H92-1020/ 1992