Response to Comment on “Unique in the shopping mall: On the reidentifiability of credit card metadata”
Author(s)de Montjoye, Yves-Alexandre; Pentland, Alex
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Sánchez et al.’s textbook k-anonymization example does not prove, or even suggest, that location and other big-data data sets can be anonymized and of general use. The synthetic data set that they “successfully anonymize” bears no resemblance to modern high-dimensional data sets on which their methods fail. Moving forward, deidentification should not be considered a useful basis for policy.
de Montjoye, Y. A., & Pentland, A. (2016). Response to Comment on “Unique in the shopping mall: On the reidentifiability of credit card metadata”. Science, 351(6279), 1274-1274.
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