System and method for indexing and prefiltering
US8214369B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 9, 2004 |
| Grant date | Jul 3, 2012 |
| Priority date | — |
| Expiry date | Aug 25, 2028 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06Q30/0253
- WIPO fieldIT methods for management
- WIPO sectorElectrical engineering
Abstract
A method and system are provided for selecting advertisements for presentation to a user in response to a user search query. The system may include a keyword server for parsing the user search query and an index server for receiving the parsed search query. The index server may include an index of advertising phrases and pre-filtering components for comparing index entries to the parsed user search query in order to discard non-matching index entries and locate matching entries. The pre-filtering components may include either a phrase length pre-filtering component or a word hash pre-filtering component. The system may additionally include a listing server for sorting through the matching entries located by the index server and further filtering the matching entries for retrieval and presentation to the user.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.