Wang, Z., R. Bao, Q. Wu, and S. Liu. “Confidence-Aware Non-Repetitive Multimodal Transformers for TextCaps”. Proceedings of the AAAI Conference on Artificial Intelligence, vol. 35, no. 4, May 2021, pp. 2835-43, https://ojs.aaai.org/index.php/AAAI/article/view/16389.