HeidelTime: Tuning English and Developing Spanish Resources for TempEval-3 Jannik Strötgen author Julian Zell author Michael Gertz author 2013-06 text Second Joint Conference on Lexical and Computational Semantics (*SEM), Volume 2: Proceedings of the Seventh International Workshop on Semantic Evaluation (SemEval 2013) Suresh Manandhar editor Deniz Yuret editor Association for Computational Linguistics Atlanta, Georgia, USA conference publication strotgen-etal-2013-heideltime https://aclanthology.org/S13-2003/ 2013-06 15 19