UFPRSheffield: Contrasting Rule-based and Support Vector Machine Approaches to Time Expression Identification in Clinical TempEval Hegler Tissot author Genevieve Gorrell author Angus Roberts author Leon Derczynski author Marcos Didonet Del Fabro author 2015-06 text Proceedings of the 9th International Workshop on Semantic Evaluation (SemEval 2015) Preslav Nakov editor Torsten Zesch editor Daniel Cer editor David Jurgens editor Association for Computational Linguistics Denver, Colorado conference publication tissot-etal-2015-ufprsheffield 10.18653/v1/S15-2141 https://aclanthology.org/S15-2141/ 2015-06 835 839