An Arabic Twitter Corpus for Subjectivity and Sentiment Analysis Eshrag Refaee author Verena Rieser author 2014-05 text Proceedings of the Ninth International Conference on Language Resources and Evaluation (LREC’14) Nicoletta Calzolari editor Khalid Choukri editor Thierry Declerck editor Hrafn Loftsson editor Bente Maegaard editor Joseph Mariani editor Asuncion Moreno editor Jan Odijk editor Stelios Piperidis editor European Language Resources Association (ELRA) Reykjavik, Iceland conference publication refaee-rieser-2014-arabic https://aclanthology.org/L14-1280/ 2014-05 2268 2273