Hash selection in LDP creates measurable disparities in inference and poisoning vulnerability, and an entropy-filtered OLH variant reduces those disparities, though with added runtime.
Proceedings on Privacy Enhancing Technolo- gies 2024(4)
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Don't Hash Me Like That: Exposing and Mitigating Hash-Induced Unfairness in Local Differential Privacy
Hash selection in LDP creates measurable disparities in inference and poisoning vulnerability, and an entropy-filtered OLH variant reduces those disparities, though with added runtime.