Using PU-Learning to Detect Deceptive Opinion Spam Donato Hernández Fusilier author Rafael Guzmán Cabrera author Manuel Montes-y-Gómez author Paolo Rosso author 2013-06 text Proceedings of the 4th Workshop on Computational Approaches to Subjectivity, Sentiment and Social Media Analysis Alexandra Balahur editor Erik van der Goot editor Andres Montoyo editor Association for Computational Linguistics Atlanta, Georgia conference publication hernandez-fusilier-etal-2013-using https://aclanthology.org/W13-1606/ 2013-06 38 45