Parameter-free Sentence Embedding via Orthogonal Basis Ziyi Yang author Chenguang Zhu author Weizhu Chen author 2019-11 text Proceedings of the 2019 Conference on Empirical Methods in Natural Language Processing and the 9th International Joint Conference on Natural Language Processing (EMNLP-IJCNLP) Kentaro Inui editor Jing Jiang editor Vincent Ng editor Xiaojun Wan editor Association for Computational Linguistics Hong Kong, China conference publication yang-etal-2019-parameter 10.18653/v1/D19-1059 https://aclanthology.org/D19-1059/ 2019-11 638 648