Arturo Montejo Ráez, Salud María Jiménez Zafra, Miguel A. García-Cumbreras, Manuel Carlos Díaz-Galiano. SINAI-DL at SemEval-2019 Task 5: Recurrent networks and data augmentation by paraphrasing. In Jonathan May, Ekaterina Shutova, Aurélie Herbelot, Xiaodan Zhu, Marianna Apidianaki, Saif M. Mohammad, editors, Proceedings of the 13th International Workshop on Semantic Evaluation, SemEval@NAACL-HLT 2019, Minneapolis, MN, USA, June 6-7, 2019. pages 480-483, Association for Computational Linguistics, 2019. [doi]