...

• David Clunie will recruit a statistician with the right expertise to speak with us at the March 8 meeting.
• David will continue refining the Interim Report.
• All Task Group members are welcome to email David your comments on the report.

March 1, 2022 Meeting

Presentation by Khaled El Emam on Re-identification Risk Measurement - slides.

• definition of identity disclosure
• attack in two directions - population to sample, sample to population
• risk measure by group size (of 1 = unique)
• risk denominator is not group size in sample but in population
• risk threshold in identifiability spectrum
• privacy-utility tradeoff
• data transformations - generalization, suppression, addition of noise, microaggregation
• for non-public data, can add controls (privacy, security, contractual)

Discussion