Sentence Contextual Encoder with BERT and BiLSTM for Automatic Classification with Imbalanced Medication Tweets Olanrewaju Tahir Aduragba author Jialin Yu author Gautham Senthilnathan author Alexandra Crsitea author 2020-12 text Proceedings of the Fifth Social Media Mining for Health Applications Workshop & Shared Task Graciela Gonzalez-Hernandez editor Ari Z Klein editor Ivan Flores editor Davy Weissenbacher editor Arjun Magge editor Karen O’Connor editor Abeed Sarker editor Anne-Lyse Minard editor Elena Tutubalina editor Zulfat Miftahutdinov editor Ilseyar Alimova editor Association for Computational Linguistics Barcelona, Spain (Online) conference publication aduragba-etal-2020-sentence https://aclanthology.org/2020.smm4h-1.31/ 2020-12 165 167