Data protection method and apparatus, and server and medium
US11755691B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Jul 29, 2022 |
| Grant date | Sep 12, 2023 |
| Priority date | — |
| Expiry date | Jul 29, 2042 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06N3/091
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
Disclosed are a data protection method and apparatus, and a server and a medium. A particular embodiment of the method comprises: acquiring gradient associated information, which respectively corresponds to a target sample that belongs to a binary classification sample set with unbalanced distribution and a reference sample that belongs to the same batch as the target sample; generating information of data noise to be added; according to the information of said data noise, correcting an initial gradient transfer value corresponding to the target sample, such that corrected gradient transfer information corresponding to samples in the sample set that belong to different types is consistent; and sending the gradient transfer information to a passive party of a joint training model. By means of the embodiment, there is no significant difference between corrected gradient transfer information corresponding to positive and negative samples, thereby effectively protecting the security of data.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.