Effective Self-Training for Parsing David McClosky author Eugene Charniak author Mark Johnson 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 mcclosky-etal-2006-effective https://aclanthology.org/N06-1020/ 2006-06 152 159