Choi, Seongho, Kyoung-Woon On, Yu-Jung Heo, Ahjeong Seo, Youwon Jang, Minsu Lee, and Byoung-Tak Zhang. 2021. “DramaQA: Character-Centered Video Story Understanding With Hierarchical QA”. Proceedings of the AAAI Conference on Artificial Intelligence 35 (2):1166-74. https://ojs.aaai.org/index.php/AAAI/article/view/16203.