Reliability of duplicate document detection algorithms
US8429178B2 · kind B2 · utility
6Cited by
9References
24Claims
0Family size
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Key dates
| Filing date | Jul 18, 2011 |
| Grant date | Apr 23, 2013 |
| Priority date | — |
| Expiry date | Jul 18, 2031 |
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.