Reliability of duplicate document detection algorithms
US7392262B1 · kind B1 · utility
36Cited by
2References
31Claims
0Family size
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Key dates
| Filing date | Dec 21, 2004 |
| Grant date | Jun 24, 2008 |
| Priority date | — |
| Expiry date | Oct 27, 2025 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S707/99945
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
In a single-signature duplicate document system, a secondary set of attributes is used in addition to a primary set of attributes so as to improve the precision of the system. When the projection of a document onto the primary set of attributes is below a threshold, then a secondary set of attributes is used to supplement the primary lexicon so that the projection is above the threshold.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.