STL-CQA: Structure-based Transformers with Localization and Encoding for Chart Question Answering Hrituraj Singh author Sumit Shekhar author 2020-11 text Proceedings of the 2020 Conference on Empirical Methods in Natural Language Processing (EMNLP) Bonnie Webber editor Trevor Cohn editor Yulan He editor Yang Liu editor Association for Computational Linguistics Online conference publication singh-shekhar-2020-stl 10.18653/v1/2020.emnlp-main.264 https://aclanthology.org/2020.emnlp-main.264/ 2020-11 3275 3284