A method and system for realizing data set desensitization based on k-anonymity algorithm
An anonymous algorithm and data set technology, applied in the field of data desensitization, can solve the problems of not considering the distance, increasing data availability, reducing the availability of obtained data, etc., and achieve the effect of improving the problem of area angle and increasing availability
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[0092] A method for realizing data set desensitization based on k-anonymity algorithm, said method comprising the following steps:
[0093] S1: Input the original data set T, and set parameters τ, P, k; among them, P represents the record set in the data table, τ represents the hypersphere area occupied by the record set; k represents the parameters of the algorithm, indicating that there are at least k A record has the same quasi-marker as other records, so that each record has a probability of 1 / k to be confirmed;
[0094] S2: Delete the display identifier of each record in the original data set, define the order of the value domain of each attribute in the quasi-identifier, and make it an ordered domain; then map the ordered domain to the real number domain one by one;
[0095] S3: Set range=τ, TMP=P, express it as a linear function of k by |P|=αk+β, where β is a non-negative number smaller than k, and α represents the relationship between the number of records in the anony...
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