Automatic Difficulty Classification of Arabic Sentences Nouran Khallaf author Serge Sharoff author 2021-04 text Proceedings of the Sixth Arabic Natural Language Processing Workshop Nizar Habash editor Houda Bouamor editor Hazem Hajj editor Walid Magdy editor Wajdi Zaghouani editor Fethi Bougares editor Nadi Tomeh editor Ibrahim Abu Farha editor Samia Touileb editor Association for Computational Linguistics Kyiv, Ukraine (Virtual) conference publication khallaf-sharoff-2021-automatic https://aclanthology.org/2021.wanlp-1.11/ 2021-04 105 114