1. bookVolume 2019 (2019): Issue 2 (April 2019)
Journal Details
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Journal
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16 Apr 2015
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4 times per year
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English
access type Open Access

Cardinality Estimators do not Preserve Privacy

Published Online: 04 May 2019
Page range: 26 - 46
Received: 31 Aug 2018
Accepted: 16 Dec 2018
Journal Details
License
Format
Journal
First Published
16 Apr 2015
Publication timeframe
4 times per year
Languages
English

Cardinality estimators like HyperLogLog are sketching algorithms that estimate the number of distinct elements in a large multiset. Their use in privacy-sensitive contexts raises the question of whether they leak private information. In particular, can they provide any privacy guarantees while preserving their strong aggregation properties?

Keywords

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