Experimental Evaluation of LTAG-Based Features for Semantic Role Labeling Yudong Liu author Anoop Sarkar author 2007-06 text Proceedings of the 2007 Joint Conference on Empirical Methods in Natural Language Processing and Computational Natural Language Learning (EMNLP-CoNLL) Jason Eisner editor Association for Computational Linguistics Prague, Czech Republic conference publication liu-sarkar-2007-experimental https://aclanthology.org/D07-1062/ 2007-06 590 599