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Activity Number:
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550
- Differential Privacy in Statistical Agencies: Present and Future
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Type:
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Invited
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Date/Time:
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Wednesday, August 2, 2017 : 2:00 PM to 3:50 PM
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Sponsor:
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Government Statistics Section
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Abstract #325047
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Title:
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Experiences with Differentially Private Geocoded Administrative Data
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Author(s):
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Jörg Drechsler* and Jordi Soria-Comas
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Companies:
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Institute for Employment Research and Universitat Rovira i Virgili
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Keywords:
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differential privacy ;
microaggregation ;
disclosure control ;
geocode
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Abstract:
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In this talk we propose a differentially private procedure for releasing detailed geographical information based on a micro-aggregation algorithm with a fixed minimal cluster size. We evaluate whether meaningful results can be obtained with this approach using administrative data gathered by the German Federal Employment Agency. Detailed geocoding information has been added to this database recently and plans call for making this valuable source of information available to the scientific community. We generate differentially private microdata using different levels of geographical detail to identify the most detailed level that still provides acceptable analytical validity while offering strong privacy guarantees. Strategies for obtaining approximately valid inferences from the perturbed data will also be discussed.
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Authors who are presenting talks have a * after their name.
