Unequal Interval GM(1,1) Model of Weighted Coefficient Adjustment and its Application

Bin Zeng; Lin Fang Li

doi:10.4028/www.scientific.net/AMR.219-220.428

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 219-220Unequal Interval GM(1,1) Model of Weighted...

Unequal Interval GM(1,1) Model of Weighted Coefficient Adjustment and its Application

Abstract:

Although the grey forecasting model has been successfully adopted in various fields and has been demonstrated prospected aspect. The paper makes the original data multiply the time interval to get the accumulated sequence and uses the difference quotient method to establish the unequal interval GM(1,1) model. In order to reduce the error the paper adopts the weighted coefficient to revise the background values. By fitting and predicting the fatigue strength data it proves the method in the paper is effective which improves the accuracy of the model. It provides an effective way for the grey system application.

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Periodical:

Advanced Materials Research (Volumes 219-220)

Pages:

428-431

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.219-220.428

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Online since:

March 2011

Authors:

Bin Zeng, Lin Fang Li

Keywords:

Background Value, Difference Quotient Method, Weighted Coefficient

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