Dynamic Nonlocal Language Modeling via Hierarchical Topic-Based Adaptation Radu Florian author David Yarowsky 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 florian-yarowsky-1999-dynamic 10.3115/1034678.1034711 https://aclanthology.org/P99-1022/ 1999-06 167 174