公开(公告)号：US20250131112A1

公开(公告)日：2025-04-24

申请号：US18684996

申请日：2023-07-14

Applicant: Google LLC

Inventor： Pasin Manurangsi ,  Badih Ghazi ,  Shanmugasundaram Ravikumar ,  Jelani Osei Nelson

IPC: G06F21/62

Abstract: In one aspect, there is provided a method performed by one or more computers that includes: obtaining access data for a digital resource, access data including data identifying a set of users that accessed the digital resource at a time point, processing the access data to generate data defining a tree model, where each node in the tree model is associated with: (i) a key that specifies time intervals in the time span, and (ii) a value that is based on a respective number of users that satisfy a node-specific selection, receiving a request to determine a number of users that accessed the digital resource at least a predefined number of times within a time window, and in processing the tree model to generate an estimate for the number of users that accessed the digital resource at least the predefined number of times within the time window.