De Choudhury, Munmun, Michael Gamon, and Scott Counts. “Happy, Nervous or Surprised? Classification of Human Affective States in Social Media”. Proceedings of the International AAAI Conference on Web and Social Media 6, no. 1 (August 3, 2021): 435–438. Accessed May 14, 2026. https://ojs.aaai.org/index.php/ICWSM/article/view/14335.