Gong, W., E.-P. Lim, F. Zhu, and P. H. Cher. “On Unravelling Opinions of Issue Specific-Silent Users in Social Media”. Proceedings of the International AAAI Conference on Web and Social Media, vol. 10, no. 1, Aug. 2021, pp. 141-50, doi:10.1609/icwsm.v10i1.14722.