Generating a fingerprint for a document
US7555489B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 1, 2005 |
| Grant date | Jun 30, 2009 |
| Priority date | — |
| Expiry date | Jun 30, 2026 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F40/30
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
Mechanisms for generating a set of one or more elements of a fingerprint for a document, the document comprising a semantic construct having one or more ordered words, are provided. With these mechanisms, a range of sizes for a fingerprint element is defined and ordered words of the semantic construct are divided into a set of one or more mutually exclusive fingerprint elements. Each of the one or more mutually exclusive fingerprint elements includes a number of adjacent words, the number being within the range of sizes for a fingerprint element. Responsive to a determination that the set of mutually exclusive fingerprint elements excludes a word from the semantic construct, the excluded word is discarded.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.