Updating logistic regression models using coherent gradient
US7461063B1 · kind B1 · utility
23Cited by
5References
30Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | May 26, 2004 |
| Grant date | Dec 2, 2008 |
| Priority date | — |
| Expiry date | Aug 19, 2025 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S707/99945
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A document classification system updates the logistic regression parameters of the logistic regression algorithm used to classify the documents, using a coherent gradient method based upon the coherency between the update data regarding the classifications of the documents and the combined data including both the update data and the original data used to generate the original logistic regression parameters. The classification system can be applied to an email filtering system for filtering spam email.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.