The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jan. 20, 2026
Filed:
Jun. 06, 2022
Oracle International Corporation, Redwood City, CA (US);
Virendra J. Marathe, Florence, MA (US);
Pallika Haridas Kanani, Westford, MA (US);
Oracle International Corporation, Redwood City, CA (US);
Abstract
Hierarchical gradient averaging is performed as part of training a machine learning model to enforce subject level privacy. A sample of data items from a training data set is identified and respective gradients for the data items are determined. The gradients are then clipped. Each subject's clipped gradients in the sample are averaged. A noise value is added to a sum of the averaged gradients of each of the subjects in the sample. An average gradient for the entire sample is determined from the averaged gradients of the individual subjects with the added noise value. This average gradient for the entire sample is used for determining machine learning model updates.