Data anonymity
First Claim
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1. A system, comprising:
- a memory storing a program which, when executed on a processor, performs an operation for ensuring anonymity of data, the operation comprising;
determining a number of members of each of a plurality of clusters, based on one or more features of members leaving the cluster; and
anonymizing the data in the database, easing the determined number of members of each cluster, wherein the one or more features of the leaving members from the cluster are selected from the group consisting of a ratio of leaving, a period for leaving, a cause of leaving, or a combination thereof;
wherein the database has the period for leaving for each member;
wherein the determination is made by calculating a required minimum number, N, for the members in each cluster, based on the ratio of leaving;
wherein the anonymization is performed using k-anonymization with k being the retired minimum number, N, and wherein, in the database, assuming that the value, k, for the k-anonymization is Y after a passage of a first predefined term, X, the required minimum number, N, is calculated based on Y.
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Abstract
The present invention may be a method, a system, and a computer program product. An embodiment of the present invention provides a method for ensuring anonymity of data. The method comprises the following: determining the number of members of each cluster, based on one or more features of leaving of the members of the data; and anonymizing the data in the database, using the determined number.
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Citations
14 Claims
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1. A system, comprising:
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a memory storing a program which, when executed on a processor, performs an operation for ensuring anonymity of data, the operation comprising; determining a number of members of each of a plurality of clusters, based on one or more features of members leaving the cluster; and anonymizing the data in the database, easing the determined number of members of each cluster, wherein the one or more features of the leaving members from the cluster are selected from the group consisting of a ratio of leaving, a period for leaving, a cause of leaving, or a combination thereof;
wherein the database has the period for leaving for each member;
wherein the determination is made by calculating a required minimum number, N, for the members in each cluster, based on the ratio of leaving;
wherein the anonymization is performed using k-anonymization with k being the retired minimum number, N, and wherein, in the database, assuming that the value, k, for the k-anonymization is Y after a passage of a first predefined term, X, the required minimum number, N, is calculated based on Y. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A computer program product for ensuring anonymity of data, the computer program product comprising a computer readable storage medium having program instructions embodied therewith, wherein the computer readable storage medium is not a transitory signal per se, the program instructions executable by a computer to cause the computer to:
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determine a number of members of each of a plurality of clusters, based on one or more features of members leaving the cluster; and anonymize the data in the database, using the determined number of members of each cluster, wherein the one or more features of the leaving members from the cluster are selected from the group consisting of a ratio of leaving, a period for leaving, a cause, of leaving, or a combination thereof;
wherein the database has the period for leaving for each member;
wherein the determination is made by calculating a required minimum number, N, for the members in each cluster, based on the ratio of leaving;
wherein the anonymization is performed using k-anonymization with k being the required minimum number, N; and
wherein, in the database, assuming that the value, k for the k-anonymization is Y after a passage of a first predefined term, X, the required minimum number, N, is calculated based on Y. - View Dependent Claims (9, 10, 11, 12, 13, 14)
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Specification