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1-Diffractor: Efficient and Utility-Preserving Text Obfuscation Leveraging Word-Level Metric Differential Privacy
May 6, 2024, 4:47 a.m. | Stephen Meisenbacher, Maulik Chevli, Florian Matthes
cs.CL updates on arXiv.org arxiv.org
Abstract: The study of privacy-preserving Natural Language Processing (NLP) has gained rising attention in recent years. One promising avenue studies the integration of Differential Privacy in NLP, which has brought about innovative methods in a variety of application settings. Of particular note are $\textit{word-level Metric Local Differential Privacy (MLDP)}$ mechanisms, which work to obfuscate potentially sensitive input text by performing word-by-word $\textit{perturbations}$. Although these methods have shown promising results in empirical tests, there are two major …
arxiv cs.cl differential differential privacy privacy text type utility word
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