Method for data acquisition, device and storage medium

A method for data acquisition, comprising:

• receiving a Bloom vector of a Bloom Filter sent by a data processing device, wherein the Bloom vector of the Bloom Filter is a Bloom vector corresponding to a data identification intersection between databases of data providers;
• determining a target data identification from data identifications of a database through the Bloom Filter based on the Bloom vector;
• acquiring data corresponding to the target data identification from the database and determining the data as candidate data;
• and
• sending the candidate data to the data processing device,
• wherein the determining a target data identification from data identifications of a database through the Bloom Filter based on the Bloom vector comprises:
• performing Hash calculation on a first data identification among the data identifications of the database according to a preset Hash function, querying a value of a position corresponding to a Hash calculation result from the Bloom vector according to the Hash calculation result, and determining whether the first data identification is the target data identification according to the value.

An electronic device, comprising:

• at least one processor and at least one memory,
• wherein the at least one memory stores computer-executable instructions, and the at least one processor executes the computer-executable instructions stored in the at least one memory, causing the at least one processor to implement a method for data acquisition, and the method comprises:
• determining a data identification intersection between databases of data providers, wherein the data identification intersection comprises data identifications that are same between the databases of the data providers;
• constructing a Bloom vector of a Bloom Filter according to the data identification intersection, and sending the Bloom vector to the data providers;
• receiving candidate data sent by the data providers, wherein the candidate data is data corresponding to a target data identification, and the target data identification is determined by the data providers from data identifications of respective databases through the Bloom Filter based on the Bloom vector;
• and
• selecting target data corresponding to the data identification intersection from the candidate data,
• wherein the constructing a Bloom vector of a Bloom Filter according to the data identification intersection comprises:
• performing Hash calculation on the data identifications in the data identification intersection according to a preset Hash function, and constructing the Bloom vector based on a Hash calculation result and a preset Bloom vector length.