Adapting a Polarity Lexicon using Integer Linear Programming for Domain-Specific Sentiment Classification Yejin Choi author Claire Cardie author 2009-08 text Proceedings of the 2009 Conference on Empirical Methods in Natural Language Processing Philipp Koehn editor Rada Mihalcea editor Association for Computational Linguistics Singapore conference publication choi-cardie-2009-adapting https://aclanthology.org/D09-1062/ 2009-08 590 598