Quantity Tagger: A Latent-Variable Sequence Labeling Approach to Solving Addition-Subtraction Word Problems Yanyan Zou author Wei Lu 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 zou-lu-2019-quantity 10.18653/v1/P19-1517 https://aclanthology.org/P19-1517/ 2019-07 5246 5251