Incremental Tree Substitution Grammar for Parsing and Sentence Prediction Federico Sangati author Frank Keller author 2013 text journal article Transactions of the Association for Computational Linguistics continuing MIT Press Cambridge, MA periodical academic journal sangati-keller-2013-incremental 10.1162/tacl_a_00214 https://aclanthology.org/Q13-1010/ 2013 1 111 124