Differential privacy-based service analysis method and apparatus

A non-transitory computer-readable storage medium having stored therein a computer program that, when executed by a processor of a computing device, cause the computing device to:

• obtain target data, wherein the target data are obtained by performing anonymization processing on to-be-processed data, the to-be-processed data comprise groups of differential privacy data that are respectively uploaded by multiple user devices, and any group of differential privacy data are obtained by a corresponding user device by performing differential privacy processing on privacy data of the user device in the service analysis stage by using an nth round of privacy budget, wherein n is greater than or equal to 1;
• perform predetermined service analysis on the target data;
• and
• if the service analysis succeeds, end the service analysis stage;
• or
• if the service analysis fails, determine an (n+1l)th round of privacy budget, and send the (n+1)th round of privacy budget to the multiple user devices so that each user device re-performs differential privacy processing on respective privacy data in the service analysis stage to perform an (n+1)th round of operations.

A computing device, comprising a memory and a processor, wherein the memory stores a computer program that, in response to execution by the processor, cause the computing device to:

• obtain target data, wherein the target data are obtained by performing anonymization processing on to-be-processed data, the to-be-processed data comprise groups of differential privacy data that are respectively uploaded by multiple user devices, and any group of differential privacy data are obtained by a corresponding user device by performing differential privacy processing on privacy data of the user device in the service analysis stage by using an nth round of privacy budget, wherein n is greater than or equal to 1;
• perform predetermined service analysis on the target data;
• and
• if the service analysis succeeds, end the service analysis stage:
• or
• if the service analysis fails, determine an (n+1l)th round of privacy budget, and send the (n+1)th round of privacy budget to the multiple user devices so that each user device re-performs differential privacy processing on respective privacy data in the service analysis stage to perform an (n+1)th round of operations.