Question Answering Systems Approaches and Challenges Reem Alqifari author 2019-09 text Proceedings of the Student Research Workshop Associated with RANLP 2019 Venelin Kovatchev editor Irina Temnikova editor Branislava Šandrih editor Ivelina Nikolova editor INCOMA Ltd. Varna, Bulgaria conference publication alqifari-2019-question 10.26615/issn.2603-2821.2019_011 https://aclanthology.org/R19-2011/ 2019-09 69 75