Long, X., C. Gan, G. Melo, X. Liu, Y. Li, F. Li, and S. Wen. “Multimodal Keyless Attention Fusion for Video Classification”. Proceedings of the AAAI Conference on Artificial Intelligence, vol. 32, no. 1, Apr. 2018, doi:10.1609/aaai.v32i1.12319.