公开(公告)号：US20150089522A1

公开(公告)日：2015-03-26

申请号：US14342326

申请日：2012-08-28

Applicant: GOOGLE INC.

Inventor： Yaroslav Volovich ,  Raimundo Mirisola ,  Simon Michael Rowe ,  Nick Arini ,  Andrew Gilfind ,  Ant Oztaskent ,  Iain Merrick

IPC: H04N21/442

CPC classification number: H04N21/44204 ,  H04N21/25891 ,  H04N21/44222 ,  H04N21/6582

Abstract: A method for providing efficient and accurate estimates of TV viewership ratings through a distributed computer system that includes multiple computers is disclosed. The method includes: receiving a query from a client at the distributed computer system; dynamically selecting one or more computers according to a predefined sharding function; at each of the selected computers, determining a count of qualified event records that satisfy the query; aggregating the respective counts of qualified event records determined by the selected computers; statistically projecting the aggregated count of qualified event records into an estimated total count of qualified event records on the distributed computer system; and returning the estimated total count of qualified event records to the requesting client.

Abstract translation: 公开了一种通过包括多台计算机的分布式计算机系统提供有效和准确的电视观看次数评估的方法。 该方法包括：从分布式计算机系统的客户端接收查询; 根据预定义的分片功能动态地选择一个或多个计算机; 在每个所选择的计算机上，确定满足查询的限定事件记录的计数; 聚合由所选择的计算机确定的合格事件记录的相应计数; 统计上将合格事件记录的总计数量预计为分布式计算机系统上合格事件记录的总计数; 并将合格事件记录的估计总计数返回给请求客户端。