Construction of a Personal Experience Tweet Corpus for Health Surveillance Keyuan Jiang author Ricardo Calix author Matrika Gupta author 2016-08 text Proceedings of the 15th Workshop on Biomedical Natural Language Processing Kevin Bretonnel Cohen editor Dina Demner-Fushman editor Sophia Ananiadou editor Jun-ichi Tsujii editor Association for Computational Linguistics Berlin, Germany conference publication jiang-etal-2016-construction 10.18653/v1/W16-2917 https://aclanthology.org/W16-2917/ 2016-08 128 135