Witness Identification in Twitter Rui Fang author Armineh Nourbakhsh author Xiaomo Liu author Sameena Shah author Quanzhi Li author 2016-11 text Proceedings of the Fourth International Workshop on Natural Language Processing for Social Media Lun-Wei Ku editor Jane Yung-jen Hsu editor Cheng-Te Li editor Association for Computational Linguistics Austin, TX, USA conference publication fang-etal-2016-witness 10.18653/v1/W16-6210 https://aclanthology.org/W16-6210/ 2016-11 65 73