Phrase Grounding by Soft-Label Chain Conditional Random Field Jiacheng Liu author Julia Hockenmaier author 2019-11 text Proceedings of the 2019 Conference on Empirical Methods in Natural Language Processing and the 9th International Joint Conference on Natural Language Processing (EMNLP-IJCNLP) Kentaro Inui editor Jing Jiang editor Vincent Ng editor Xiaojun Wan editor Association for Computational Linguistics Hong Kong, China conference publication liu-hockenmaier-2019-phrase 10.18653/v1/D19-1515 https://aclanthology.org/D19-1515/ 2019-11 5112 5122