Privately Estimating Black-Box Statistics
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arXiv
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| Format: | Preprint |
| Published: |
2025
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| _version_ | 1866914544221159424 |
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| author | Steinke, Günter F. Steinke, Thomas |
| author_facet | Steinke, Günter F. Steinke, Thomas |
| contents | Standard techniques for differentially private estimation, such as Laplace or Gaussian noise addition, require guaranteed bounds on the sensitivity of the estimator in question. But such sensitivity bounds are often large or simply unknown. Thus we seek differentially private methods that can be applied to arbitrary black-box functions. A handful of such techniques exist, but all are either inefficient in their use of data or require evaluating the function on exponentially many inputs. In this work we present a scheme that trades off between statistical efficiency (i.e., how much data is needed) and oracle efficiency (i.e., the number of evaluations). We also present lower bounds showing the near-optimality of our scheme. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2510_00322 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Privately Estimating Black-Box Statistics Steinke, Günter F. Steinke, Thomas Cryptography and Security Computational Complexity Data Structures and Algorithms Machine Learning Standard techniques for differentially private estimation, such as Laplace or Gaussian noise addition, require guaranteed bounds on the sensitivity of the estimator in question. But such sensitivity bounds are often large or simply unknown. Thus we seek differentially private methods that can be applied to arbitrary black-box functions. A handful of such techniques exist, but all are either inefficient in their use of data or require evaluating the function on exponentially many inputs. In this work we present a scheme that trades off between statistical efficiency (i.e., how much data is needed) and oracle efficiency (i.e., the number of evaluations). We also present lower bounds showing the near-optimality of our scheme. |
| title | Privately Estimating Black-Box Statistics |
| topic | Cryptography and Security Computational Complexity Data Structures and Algorithms Machine Learning |
| url | https://arxiv.org/abs/2510.00322 |