@ARTICLE {
	AUTHOR = "Felipe Bravo-Marquez and Marcelo Mendoza and B{\'a}rbara Poblete",
	TITLE ="Meta-Level Sentiment Models for Big Social Data Analysis",
	JOURNAL = "Knowledge-Based Systems (KBS)",
	VOLUME = "69",
	PAGES = "86-99",
	MONTH = "Oct",
	YEAR = "2014",
	PUBLISHER = "Elsevier Science",
	ADDRESS = "Amsterdam, The Netherlands",
	ISSN = "0950-7051"
	}