UA-ZBSA: A Headline Emotion Classification through Web Information Zornitsa Kozareva author Borja Navarro author Sonia Vázquez author Andrés Montoyo author 2007-06 text Proceedings of the Fourth International Workshop on Semantic Evaluations (SemEval-2007) Eneko Agirre editor Lluís Màrquez editor Richard Wicentowski editor Association for Computational Linguistics Prague, Czech Republic conference publication kozareva-etal-2007-ua https://aclanthology.org/S07-1072/ 2007-06 334 337