Fine-Grained Sentiment Analysis with Structural Features Cäcilia Zirn author Mathias Niepert author Heiner Stuckenschmidt author Michael Strube author 2011-11 text Proceedings of 5th International Joint Conference on Natural Language Processing Haifeng Wang editor David Yarowsky editor Asian Federation of Natural Language Processing Chiang Mai, Thailand conference publication zirn-etal-2011-fine https://aclanthology.org/I11-1038/ 2011-11 336 344