Sánchez Cisneros, DanielAparicio Gali, Fernando2015-04-232015-04-232015-06Second Joint Conference on Lexical and Computational Semantics (*SEM), Volume 2: Seventh International Workshop on Semantic Evaluation (SemEval 2013), pp. 622-627https://hdl.handle.net/10016/20463Proceedings of: International Workshop on Semantic Evaluation. SemEval-2013 : Semantic Evaluation Exercises. Took place in 2013 June, 14-15, in Atlanta, Georgia (USA). The event Web site in http://www.cs.york.ac.uk/semeval-2013/Drug name entity recognition focuses on identifying concepts appearing in the text that correspond to a chemical substance used in pharmacology for treatment, cure, prevention or diagnosis of diseases. This paper describes a system based on ontologies for identifying the chemical substances in biomedical text. The system achieves an F-1 measure of 0.529 in the task.7application/pdfeng© 2013 AuthorsAtribución-NoComercial-CompartirIgual 3.0 Españaconference paperInformáticaopen access622627Second Joint Conference on Lexical and Computational Semantics (*SEM). Seventh International Workshop on Semantic Evaluation (SemEval 2013)2CC/0000023332