Part-of-Speech Tagging for Twitter: Annotation, Features, and Experiments Kevin Gimpel author Nathan Schneider author Brendan O’Connor author Dipanjan Das author Daniel Mills author Jacob Eisenstein author Michael Heilman author Dani Yogatama author Jeffrey Flanigan author Noah A Smith author 2011-06 text Proceedings of the 49th Annual Meeting of the Association for Computational Linguistics: Human Language Technologies Dekang Lin editor Yuji Matsumoto editor Rada Mihalcea editor Association for Computational Linguistics Portland, Oregon, USA conference publication gimpel-etal-2011-part https://aclanthology.org/P11-2008/ 2011-06 42 47