UM6P & UL at WojoodNER shared task: Improving Multi-Task Learning for Flat and Nested Arabic Named Entity Recognition Abdelkader El Mahdaouy author Salima Lamsiyah author Hamza Alami author Christoph Schommer author Ismail Berrada author 2023-12 text Proceedings of ArabicNLP 2023 Hassan Sawaf editor Samhaa El-Beltagy editor Wajdi Zaghouani editor Walid Magdy editor Ahmed Abdelali editor Nadi Tomeh editor Ibrahim Abu Farha editor Nizar Habash editor Salam Khalifa editor Amr Keleg editor Hatem Haddad editor Imed Zitouni editor Khalil Mrini editor Rawan Almatham editor Association for Computational Linguistics Singapore (Hybrid) conference publication mahdaouy-etal-2023-um6p 10.18653/v1/2023.arabicnlp-1.87 https://aclanthology.org/2023.arabicnlp-1.87/ 2023-12 777 782