Multi-task Pairwise Neural Ranking for Hashtag Segmentation Mounica Maddela author Wei Xu author Daniel Preoţiuc-Pietro 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 maddela-etal-2019-multi 10.18653/v1/P19-1242 https://aclanthology.org/P19-1242/ 2019-07 2538 2549