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Abstract Details

Activity Number: 233
Type: Topic Contributed
Date/Time: Monday, July 30, 2012 : 2:00 PM to 3:50 PM
Sponsor: Health Policy Statistics Section
Abstract - #304525
Title: Assessing the Privacy of Randomized Vector--Valued Queries to a Database Using the Area Under the Receiver-Operating Characteristic Curve
Author(s): Gregory J. Matthews*+ and Ofer Harel, Ph.D.
Companies: University of Massachusetts and University of Connecticut
Address: 67 Aspen Road, Springfield, MA, 01128, United States
Keywords: Privacy ; ROC curve ; Statistical Disclosure Limitation

As the amount of data generated continues to increase, consideration of individuals' privacy is a growing concern. As a result, there has been a vast quantity of research done on methods of statistical disclosure control (SDC). Some of these methods propose to release a randomized version of the data rather than the actual data. While methods of this type certainly o ffer some layer of protection since no actual data is released, there is still the potential for private information to be disclosed. Quantifying the level of privacy provided by these methods is often difficult. In the past, a method for assessing privacy using the receiver-operating characteristic (ROC) curve based on ideas related to di fferential privacy has been proposed. However, the method was only demonstrated for univariate randomized releases. Here, the ROC based privacy measure is extended to the release of randomized vectors.

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