Branch and Bound Algorithm for Dependency Parsing with Non-local Features Xian Qian author Yang Liu author 2013 text journal article Transactions of the Association for Computational Linguistics continuing MIT Press Cambridge, MA periodical academic journal qian-liu-2013-branch 10.1162/tacl_a_00208 https://aclanthology.org/Q13-1004/ 2013 1 37 48