OSACT4 Shared Tasks: Ensembled Stacked Classification for Offensive and Hate Speech in Arabic Tweets Hafiz Hassaan Saeed author Toon Calders author Faisal Kamiran author 2020-05 text eng Proceedings of the 4th Workshop on Open-Source Arabic Corpora and Processing Tools, with a Shared Task on Offensive Language Detection Hend Al-Khalifa editor Walid Magdy editor Kareem Darwish editor Tamer Elsayed editor Hamdy Mubarak editor European Language Resources Association Marseille, France conference publication 979-10-95546-51-1 saeed-etal-2020-osact4 https://aclanthology.org/2020.osact-1.11/ 2020-05 71 75