Simple Semi-supervised Dependency Parsing Terry Koo author Xavier Carreras author Michael Collins author 2008-06 text Proceedings of ACL-08: HLT Johanna D Moore editor Simone Teufel editor James Allan editor Sadaoki Furui editor Association for Computational Linguistics Columbus, Ohio conference publication koo-etal-2008-simple https://aclanthology.org/P08-1068/ 2008-06 595 603