Multi-Level Sentiment Analysis of PolEmo 2.0: Extended Corpus of Multi-Domain Consumer Reviews Jan Kocoń author Piotr Miłkowski author Monika Zaśko-Zielińska author 2019-11 text Proceedings of the 23rd Conference on Computational Natural Language Learning (CoNLL) Mohit Bansal editor Aline Villavicencio editor Association for Computational Linguistics Hong Kong, China conference publication kocon-etal-2019-multi 10.18653/v1/K19-1092 https://aclanthology.org/K19-1092/ 2019-11 980 991