Learning Sentiment Memories for Sentiment Modification without Parallel Data Yi Zhang author Jingjing Xu author Pengcheng Yang author Xu Sun author 2018-oct-nov text Proceedings of the 2018 Conference on Empirical Methods in Natural Language Processing Ellen Riloff editor David Chiang editor Julia Hockenmaier editor Jun’ichi Tsujii editor Association for Computational Linguistics Brussels, Belgium conference publication zhang-etal-2018-learning 10.18653/v1/D18-1138 https://aclanthology.org/D18-1138/ 2018-oct-nov 1103 1108