Comparing distributions of cases over groups of categories
US7668789B1 · kind B1 · utility
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23References
20Claims
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Key dates
| Filing date | Mar 30, 2006 |
| Grant date | Feb 23, 2010 |
| Priority date | — |
| Expiry date | Sep 4, 2028 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06N20/00
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A first distribution of cases over a first group of categories is received. A categorizer trained using a search-and-confirm technique classifies the cases into a second group of categories. A second distribution of the cases over the second group of categories is generated using results of the classifying. The first and second distributions are compared to identify differences between the first and second distributions.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.