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Transforming Data to Satisfy Privacy Constraints (2002)
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BibTeX
@MISC{Iyengar02transformingdata,
author = {Vijay S. Iyengar},
title = {Transforming Data to Satisfy Privacy Constraints},
year = {2002}
}
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Abstract
Data on individuals and entities are being collected widely. These data can contain information that explicitly identifies the individual (e.g., social security number). Data can also contain other kinds of personal information (e.g., date of birth, zip code, gender) that are potentially identifying when linked with other available data sets. Data are often shared for business or legal reasons. This paper addresses the important issue of preserving the anonymity of the individuals or entities during the data dissemination process. We explore preserving the anonymity by the use of generalizations and suppressions on the potentially identifying portions of the data. We extend earlier works in this area along various dimensions. First, satisfying privacy constraints is considered in conjunction with the usage for the data being disseminated. This allows us to optimize the process of preserving privacy for the specified usage. In particular, we investigate the privacy transformation in the context of data mining applications like building classification and regression models. Second, our work improves on previous approaches by allowing more flexible generalizations for the data. Lastly, this is combined with a more thorough exploration of the solution space using the genetic algorithm framework. These extensions allow us to transform the data so that they are more useful for their intended purpose while satisfying the privacy constraints.
Keyphrases
satisfy privacy constraint privacy constraint legal reason identifying portion privacy transformation thorough exploration important issue genetic algorithm framework various dimension flexible generalization solution space data dissemination process regression model zip code social security number previous approach available data set specified usage personal information
