Comparing the Accuracy of CCG and Penn Treebank Parsers Stephen Clark author James R Curran author 2009-08 text Proceedings of the ACL-IJCNLP 2009 Conference Short Papers Keh-Yih Su editor Jian Su editor Janyce Wiebe editor Haizhou Li editor Association for Computational Linguistics Suntec, Singapore conference publication clark-curran-2009-comparing https://aclanthology.org/P09-2014/ 2009-08 53 56