公开(公告)号：US20220318644A1

公开(公告)日：2022-10-06

申请号：US17608221

申请日：2020-10-14

Applicant: Google LLC

Inventor： Wei Huang ,  Joshua Patrick Gardner ,  Michael William Daub ,  Alexander E. Mayorov

IPC: G06N5/02

Abstract: Methods, systems, and apparatus, including computer programs encoded on a computer storage medium, for providing digital components to a client device. Methods can include assigning a temporary group identifier to a client device that identifies a particular group, from among a plurality different groups, that includes the client device based on a current period of user activity on the client device. A training set is generated for training a machine learning model that generates user characteristics. A request for digital component is received from the client device that includes the temporary group identifier currently assigned to the client device, a subset of activity features and one or more additional features that are based on the client device. The machine learning model generates one or more user characteristics based on which one or more digital components are selected and transmitted to the client device.