G - Physics – 06 – F
Patent
G - Physics
06
F
G06F 17/30 (2006.01) G06F 21/24 (2006.01)
Patent
CA 2679800
A system and method of performing risk assessment of a dataset de-identified from a source database containing information identifiable to individuals is provided. The de-identified dataset is retrieved comprising a plurality of records from a storage device. A selection of variables from a user is received, the selection made from a plurality of variables present in the dataset, wherein the variables are potential identifiers of personal information. A selection of a risk threshold acceptable for the dataset from a user is received. A selection of a sampling fraction wherein the sampling fraction define a relative size of their dataset to an entire population is received. A number of records from the plurality of records for each equivalence class in the identification dataset for each of the selected variables. A re-identification risk using the selected sampling fraction is calculated. The re-identification risk meets the selected risk threshold is determined.
Dankar Fida
El Emam Khaled
Gowling Lafleur Henderson Llp
University Of Ottawa
LandOfFree
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