Similarity-based access control of data in a data processing system
US7945544B2 · kind B2 · utility
30Cited by
153References
56Claims
0Family size
Assignees
Inventors
Key dates
| Filing date | Oct 31, 2007 |
| Grant date | May 17, 2011 |
| Priority date | — |
| Expiry date | Jul 16, 2029 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S707/99942
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
Similarity of data items is determined by analyzing corresponding segments of the data items. A function is applied to each segment of a data item and the output of that function is compared to the output of the same function applied to a corresponding segment of another data item. A function may be applied to the output of the functions. The functions may be hash or message digest functions.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.