SMM4H Shared Task 2020 - A Hybrid Pipeline for Identifying Prescription Drug Abuse from Twitter: Machine Learning, Deep Learning, and Post-Processing. - Isabel Metzger; Emir Y. Haskovic; Allison Black; Whitley M. Yi; Rajat S. Chandra; Mark T. Rutledge; William McMahon; Yindalon Aphinyanaphongs (SMM4H@COLING, 2020)