SemEval-2015 Task 12: Aspect Based Sentiment Analysis Maria Pontiki author Dimitris Galanis author Haris Papageorgiou author Suresh Manandhar author Ion Androutsopoulos author 2015-06 text Proceedings of the 9th International Workshop on Semantic Evaluation (SemEval 2015) Preslav Nakov editor Torsten Zesch editor Daniel Cer editor David Jurgens editor Association for Computational Linguistics Denver, Colorado conference publication pontiki-etal-2015-semeval 10.18653/v1/S15-2082 https://aclanthology.org/S15-2082/ 2015-06 486 495