Synchronous Tree Adjoining Machine Translation Steve DeNeefe author Kevin Knight author 2009-08 text Proceedings of the 2009 Conference on Empirical Methods in Natural Language Processing Philipp Koehn editor Rada Mihalcea editor Association for Computational Linguistics Singapore conference publication deneefe-knight-2009-synchronous https://aclanthology.org/D09-1076/ 2009-08 727 736