A Differentially Private Text Perturbation Method Using Regularized Mahalanobis Metric Zekun Xu author Abhinav Aggarwal author Oluwaseyi Feyisetan author Nathanael Teissier author 2020-11 text Proceedings of the Second Workshop on Privacy in NLP Oluwaseyi Feyisetan editor Sepideh Ghanavati editor Shervin Malmasi editor Patricia Thaine editor Association for Computational Linguistics Online conference publication xu-etal-2020-differentially 10.18653/v1/2020.privatenlp-1.2 https://aclanthology.org/2020.privatenlp-1.2/ 2020-11 7 17