A Biologically Plausible Parser Daniel Mitropolsky author Michael J Collins author Christos H Papadimitriou author 2021 text journal article Transactions of the Association for Computational Linguistics continuing MIT Press Cambridge, MA periodical academic journal mitropolsky-etal-2021-biologically 10.1162/tacl_a_00432 https://aclanthology.org/2021.tacl-1.81/ 2021 9 1374 1388