Modeling Concentrated Cross-Attention for Neural Machine Translation with Gaussian Mixture Model Shaolei Zhang author Yang Feng author 2021-11 text Findings of the Association for Computational Linguistics: EMNLP 2021 Marie-Francine Moens editor Xuanjing Huang editor Lucia Specia editor Scott Wen-tau Yih editor Association for Computational Linguistics Punta Cana, Dominican Republic conference publication zhang-feng-2021-modeling-concentrated 10.18653/v1/2021.findings-emnlp.121 https://aclanthology.org/2021.findings-emnlp.121/ 2021-11 1401 1411