1. What are the contributions in "Dynamically consistent noise infusion and partially synthetic data as confidentiality protection measures for related time-series" ?
The Census Bureau ’ s Quarterly Workforce Indicators ( QWI ) provide detailed quarterly statistics on employment measures such as worker and job flows, tabulated by detailed worker characteristics in various combinations.. The QWI disclosure avoidance mechanism the authors describe here relies heavily on the use of noise infusion through a permanent multiplicative noise distortion factor, used for magnitudes, counts, differences and ratios.. The authors show that the released statistics are analytically valid along several critical dimensions – measures are unbiased and time series properties are preserved.. The authors provide an analysis of the degree to which confidentiality is protected.. Furthermore, the authors show how the judicious use of synthetic data, injected into the tabulation process, can completely eliminate suppressions, maintain analytical validity, and increase the protection of the underlying confidential data.
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