Abstract: A data anonymity method and a data anonymity system are provided. The data anonymity method includes the following steps. A data set comprising a plurality of direct-identifiers, a plurality of quasi-identifiers and a plurality of event logs each of which includes an activity and a timestamp is obtained. A content of each of the direct-identifiers is replaced by a pseudonym. The quasi-identifiers are classified, via a group-by algorithm with k-anonymity, as a plurality of equivalence classes. The activities corresponding to each of the direct-identifiers are linked according to the timestamps to obtain a plurality of event sequences. A similarity hierarchy tree is obtained according to a plurality of edit distances among the event sequences. The event sequences are grouped according to the similarity hierarchy tree with k-anonymity to obtain at least one group. The event sequences which are in the group are generalized.

Abstract: A data anonymity method and a data anonymity system are provided. The data anonymity method includes the following steps. A data set comprising a plurality of direct-identifiers, a plurality of quasi-identifiers and a plurality of event logs each of which includes an activity and a timestamp is obtained. A content of each of the direct-identifiers is replaced by a pseudonym. The quasi-identifiers are classified, via a group-by algorithm with k-anonymity, as a plurality of equivalence classes. The activities corresponding to each of the direct-identifiers are linked according to the timestamps to obtain a plurality of event sequences. A similarity hierarchy tree is obtained according to a plurality of edit distances among the event sequences. The event sequences are grouped according to the similarity hierarchy tree with k-anonymity to obtain at least one group. The event sequences which are in the group are generalized.

Abstract: A data de-identification method, a data de-identification apparatus and a non-transitory computer readable storage medium executing the same are provided. Original data including an identification field, a condition field, and a record field is obtained. An event condition is obtained according to the condition field. From the original data, a plurality of event fragment sequences corresponding to each of a plurality of identification data and corresponding to the event condition are obtained according to the plurality of identification data in the identification field and the event condition. Sequence data is obtained according to the plurality of identification data and the plurality of event fragment sequences corresponding to each of the identification data. De-identification data is obtained by adjusting the sequence data.

Abstract: A data de-identification method, a data de-identification apparatus and a non-transitory computer readable storage medium executing the same are provided. Original data including an identification field, a condition field, and a record field is obtained. An event condition is obtained according to the condition field. From the original data, a plurality of event fragment sequences corresponding to each of a plurality of identification data and corresponding to the event condition are obtained according to the plurality of identification data in the identification field and the event condition. Sequence data is obtained according to the plurality of identification data and the plurality of event fragment sequences corresponding to each of the identification data. De-identification data is obtained by adjusting the sequence data.

Abstract: A method for application management is provided. First, an original application is received. A license code is injected into the original application through a repackaging process to generate a repackaged application. Next, the repackaged application is published for a user device to download and install, wherein the user device executes a client program. When the user device executes the repackaged application, the license code sends a license check request to activate the client program to send a license check response according to license information of the repackaged application. The license check response indicates whether the repackaged application is allowed to be further executed. When the license check response indicates that the repackage application is not allowed to be further executed, the license code terminates the repackaged application.

Abstract: A method for application management is provided. First, an original application is received. A license code is injected into the original application through a repackaging process to generate a repackaged application. Next, the repackaged application is published for a user device to download and install, wherein the user device executes a client program. When the user device executes the repackaged application, the license code sends a license check request to activate the client program to send a license check response according to license information of the repackaged application. The license check response indicates whether the repackaged application is allowed to be further executed. When the license check response indicates that the repackage application is not allowed to be further executed, the license code terminates the repackaged application.