Opinion Mining in Social Networks versus Electoral Polls Javi Fernández author Fernando Llopis author Yoan Gutiérrez author Patricio Martínez-Barco author Álvaro Díez author 2017-09 text Proceedings of the International Conference Recent Advances in Natural Language Processing, RANLP 2017 Ruslan Mitkov editor Galia Angelova editor INCOMA Ltd. Varna, Bulgaria conference publication fernandez-etal-2017-opinion 10.26615/978-954-452-049-6_032 https://aclanthology.org/R17-1032/ 2017-09 231 237