Weakly-Supervised Spatio-Temporally Grounding Natural Sentence in Video Zhenfang Chen author Lin Ma author Wenhan Luo author Kwan-Yee Kenneth Wong author 2019-07 text Proceedings of the 57th Annual Meeting of the Association for Computational Linguistics Anna Korhonen editor David Traum editor Lluís Màrquez editor Association for Computational Linguistics Florence, Italy conference publication chen-etal-2019-weakly 10.18653/v1/P19-1183 https://aclanthology.org/P19-1183/ 2019-07 1884 1894