公开(公告)号：US20180189399A1

公开(公告)日：2018-07-05

申请号：US15394586

申请日：2016-12-29

Applicant: Google Inc.

Inventor： Alexandrin Popescul ,  Matt Colen ,  Vladimir Ofitserov

IPC: G06F17/30 ,  G06F17/18 ,  G06N99/00

CPC classification number: G06N20/00 ,  G06F16/26 ,  G06Q50/01

Abstract: Methods, systems, and apparatus, including computer programs encoded on computer storage media, for identifying and characterizing signals contained in a data stream. One of the methods includes: obtaining an historical time distribution of event counts associated with a topic for a relevant time period; extracting a predictable portion of the historical time distribution of event counts to produce a residual event count time distribution including residual event counts at successive times; determining a residual triggering threshold based on the residual event count time distribution; and taking an action when a residual event count exceeds the residual triggering threshold. The action can include providing a notification to a user of a spike in event counts associated with the topic.