公开(公告)号：US20150379079A1

公开(公告)日：2015-12-31

申请号：US14315968

申请日：2014-06-26

Applicant: Yahoo! Inc.

Inventor： Nagaraj KOTA

IPC: G06F17/30

CPC classification number: G06F17/30448 ,  G06F17/30864 ,  G06Q30/0277

Abstract: Systems and methods for rewriting queries based on data features are disclosed. A data source contains a history of queries and results associated with the queries. A source query is received and a subset of the data source is extracted that is related to the query. Costs are then associated with the associations of the queries and results, and an absorbed cost is determined for each query. The queries having the lowest absorbed cost are recommended for rewrites.

Abstract translation: 公开了基于数据特征重写查询的系统和方法。 数据源包含与查询相关联的查询和结果的历史记录。 接收到源查询，并提取与查询相关的数据源的子集。 然后，成本与查询和结果的关联相关联，并且为每个查询确定吸收的成本。 建议使用具有最低吸收成本的查询进行重写。