Defuzzifying method in fuzzy inference system
US5841948A · kind A · utility
3Cited by
17References
8Claims
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Key dates
| Filing date | Apr 18, 1995 |
| Grant date | Nov 24, 1998 |
| Priority date | — |
| Expiry date | Apr 18, 2015 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06N5/048
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
In a fuzzy inference system using a plurality of output label membership functions mBi(y), each of which is represented by a singleton having a position yi and a consequent grade gi, a defuzzifying method comprising the steps of: selecting and identifying n singletons in magnitude order of the consequent grade as g1, g2, . . . , gn (g1 is the highest); and obtaining the center of gravity y0 as the final result of defuzzification, by calculating the following approximate equation (n=2, 3, . . . ) EQU y0.apprxeq.y1+g2 (y2-y1)+g3 (y3-y1)+. . .+gn(yn-y1).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.