Selecting candidate queries
US7814042B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Aug 17, 2004 |
| Grant date | Oct 12, 2010 |
| Priority date | — |
| Expiry date | Jul 28, 2027 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F16/90324
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
In an example embodiment, multiple candidate selection techniques are made available to a query-processing unit for processing a query. A candidate selection technique is chosen from among the available candidate selection techniques for an incoming query. The candidate selection technique may be chosen based on a configuration file or user input or based on some aspect of the query, the user, or the database on which the query will run. A set of semantically equivalent queries (also called a set of candidate queries) is determined for an the incoming query based on the chosen candidate selection technique. A choice is then made among the candidate queries, usually based on a cost measure, as to which query to execute or store for later execution.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.