AI4D - African Language Dataset Challenge Kathleen Siminyu author Sackey Freshia author 2020-07 text Proceedings of the Fourth Widening Natural Language Processing Workshop Rossana Cunha editor Samira Shaikh editor Erika Varis editor Ryan Georgi editor Alicia Tsai editor Antonios Anastasopoulos editor Khyathi Raghavi Chandu editor Association for Computational Linguistics Seattle, USA conference publication siminyu-freshia-2020-ai4d 10.18653/v1/2020.winlp-1.18 https://aclanthology.org/2020.winlp-1.18/ 2020-07 68 77