Multi-Granular Aspect Aggregation in Aspect-Based Sentiment Analysis John Pavlopoulos author Ion Androutsopoulos author 2014-04 text Proceedings of the 14th Conference of the European Chapter of the Association for Computational Linguistics Shuly Wintner editor Sharon Goldwater editor Stefan Riezler editor Association for Computational Linguistics Gothenburg, Sweden conference publication pavlopoulos-androutsopoulos-2014-multi 10.3115/v1/E14-1009 https://aclanthology.org/E14-1009/ 2014-04 78 87