Multilevel Coarse-to-Fine PCFG Parsing Eugene Charniak author Mark Johnson author Micha Elsner author Joseph Austerweil author David Ellis author Isaac Haxton author Catherine Hill author R Shrivaths author Jeremy Moore author Michael Pozar author Theresa Vu author 2006-06 text Proceedings of the Human Language Technology Conference of the NAACL, Main Conference Robert C Moore editor Jeff Bilmes editor Jennifer Chu-Carroll editor Mark Sanderson editor Association for Computational Linguistics New York City, USA conference publication charniak-etal-2006-multilevel https://aclanthology.org/N06-1022/ 2006-06 168 175