A hierarchical approach to vision-based language generation: from simple sentences to complex natural language Simion-Vlad Bogolin author Ioana Croitoru author Marius Leordeanu author 2020-12 text Proceedings of the 28th International Conference on Computational Linguistics Donia Scott editor Nuria Bel editor Chengqing Zong editor International Committee on Computational Linguistics Barcelona, Spain (Online) conference publication bogolin-etal-2020-hierarchical 10.18653/v1/2020.coling-main.220 https://aclanthology.org/2020.coling-main.220/ 2020-12 2436 2447