Delta Embedding Learning Xiao Zhang author Ji Wu author Dejing Dou 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 zhang-etal-2019-delta 10.18653/v1/P19-1322 https://aclanthology.org/P19-1322/ 2019-07 3329 3334