Indexing documents according to geographical relevance
US7801897B2 · kind B2 · utility
12Cited by
6References
19Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Dec 30, 2004 |
| Grant date | Sep 21, 2010 |
| Priority date | — |
| Expiry date | Aug 23, 2026 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F16/9537
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A local search engine efficiently indexes documents relevant to a geographical area by indexing, for each document, multiple location identifiers that collectively define an aggregate geographic region. When creating the index, the search engine may determine a set of geographical areas surrounding a geographical area relevant to a document and associate references to the set of geographical areas with the document index.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.