Challenges in Urdu Text Tokenization and Sentence Boundary Disambiguation Zobia Rehman author Waqas Anwar author Usama Ijaz Bajwa author 2011-11 text Proceedings of the 2nd Workshop on South Southeast Asian Natural Language Processing (WSSANLP) Rajeev Sangal editor M G Abbas Malik editor Asian Federation of Natural Language Processing Chiang Mai, Thailand conference publication rehman-etal-2011-challenges https://aclanthology.org/W11-3007/ 2011-11 40 45