A Joint Model for Answer Sentence Ranking and Answer Extraction Md Arafat Sultan author Vittorio Castelli author Radu Florian author 2016 text journal article Transactions of the Association for Computational Linguistics continuing MIT Press Cambridge, MA periodical academic journal sultan-etal-2016-joint 10.1162/tacl_a_00087 https://aclanthology.org/Q16-1009/ 2016 4 113 125