A learning theory approach to non-interactive database privacy
A learning theory approach to non-interactive database privacy
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DOI:
10.1145/1374376.1374464
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发表时间:
2008-05
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通讯作者:
Avrim Blum;Katrina Ligett;Aaron Roth
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文献类型:
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作者:
Avrim Blum;Katrina Ligett;Aaron Roth
We demonstrate that, ignoring computational constraints, it is possible to release privacy-preserving databases that are useful for all queries over a discretized domain from any given concept class with polynomial VC-dimension. We show a new lower bound for releasing databases that are useful for halfspace queries over a continuous domain. Despite this, we give a privacy-preserving polynomial time algorithm that releases information useful for all halfspace queries, for a slightly relaxed definition of usefulness. Inspired by learning theory, we introduce a new notion of data privacy, which we call distributional privacy, and show that it is strictly stronger than the prevailing privacy notion, differential privacy.