Task Alternation in Parallel Sentence Retrieval for Twitter Translation Felix Hieber author Laura Jehl author Stefan Riezler author 2013-08 text Proceedings of the 51st Annual Meeting of the Association for Computational Linguistics (Volume 2: Short Papers) Hinrich Schuetze editor Pascale Fung editor Massimo Poesio editor Association for Computational Linguistics Sofia, Bulgaria conference publication hieber-etal-2013-task https://aclanthology.org/P13-2058/ 2013-08 323 327