Method and system of extracting factors using generalized Fisher ratios
US8140456B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 29, 2008 |
| Grant date | Mar 20, 2012 |
| Priority date | — |
| Expiry date | Dec 25, 2028 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG16B40/00
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
To provide an effective factor extraction system in which samples are generated artificially from a sample group and a virtual sample set is created so that even when the number of sample is relatively small, specific factors can be selected/extracted with high reliability by using the virtual sample set. The effective factor extraction system comprises a section for extracting samples arbitrarily from sample sets and creating a plurality of paired virtual sample sets, a statistical quantity operating section for reading out the feature value held by sample contained in respective virtual sample sets and operating the average value and the variance, a section for operating Fisher ratio from the average value and the variance, and a section for testing significant factors using the operated Fisher ratio.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.