Model establishment method, device and equipment and computer storage medium
A technology of model building and equipment, applied in the direction of secure communication devices, digital transmission systems, electrical components, etc., can solve the problems of data leakage and establishment of joint models, and achieve the effect of solving data leakage
Active Publication Date: 2022-03-22
CCB FINTECH CO LTD
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[0004]
The embodiment of the present application provides a model building method, device, equipment, and computer storage medium, which can solve the problems in the prior art that a joint model cannot be established without sharing data, and the hidden danger of data leakage cannot be solved
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[0064] The characteristics and exemplary embodiments of various aspects of the application will be described in detail below. In order to make the purpose, technical solution and advantages of the application clearer, the application will be further described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described here are only intended to explain the present application rather than limit the present application. It will be apparent to one skilled in the art that the present application may be practiced without some of these specific details. The following description of the embodiments is only to provide a better understanding of the present application by showing examples of the present application.
[0065] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and d...
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The embodiment of the invention provides a model establishment method and device, equipment and a computer storage medium, the method is applied to first equipment, the method comprises the steps that a first key is adopted to encrypt a first parameter, and the first parameter is obtained through calculation according to first data which is sent by second equipment and encrypted through a second key; receiving a first gradient sent by the second device, wherein the first gradient is calculated by the second device according to a first parameter encrypted by adopting the first secret key and the second secret key; decrypting the first gradient, and sending the decrypted first gradient to the second device, so that the second device updates a first model parameter of a preset joint model according to the decrypted first gradient; calculating a second gradient of the first device according to the first parameter; and decrypting the second gradient, and updating a second model parameter of the preset joint model according to the decrypted second gradient to obtain a target joint model. According to the embodiment of the invention, the joint model can be established under the condition of not sharing data, and the hidden danger of data leakage is solved.
Description
technical field [0001] The application belongs to the technical field of federated learning, and in particular relates to a model building method, device, equipment and computer storage medium. Background technique [0002] With the development of network technology, the privacy of user data has attracted more and more attention, resulting in the phenomenon of data islands between institutions, between institutions and enterprises, and within institutions. In order to improve service quality, many institutions and enterprises Collaboration is required to obtain data. Therefore, how to protect data privacy and solve the problem of data islands has become an urgent problem to be solved. [0003] In the existing technology, in order to protect data privacy and solve the problem of data islands, federated learning defines a machine learning framework. Different data owners can build a joint model without exchanging data with each other. The respective regions only serve local ...
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IPC IPC(8): H04L9/40H04L41/14
CPCH04L63/0407H04L63/0428H04L63/0478H04L41/145
Inventor 雷伟邓杨许长山刘碧春
Owner CCB FINTECH CO LTD