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grey model
An improved grey model for corrosion prediction of tank bottom
      
This paper presents a grey model Verhulst based method for stage-effort estimation during software development process, a bias correction technology was used to improve the estimation accuracy.
      
Dynamic grey model of verification cycle and lifecycle of measuring instrument and its application
      
Combining dynamic grey model and auto-manufacturing case the controlling and information subsystems of verification cycle and the lifecycle based on information integration, multi-sensor controlling and management controlling were given.
      
Hybrid grey model to forecast monitoring series with seasonality
      
The high accuracy, straightforward and easy implementation natures of the proposed hybrid seasonal index-grey model make it a powerful analysis technique for seasonal monitoring series.
      
Their comparison with the results of a computation on the basis of a grey model showed a substantial difference in the magnitudes of the resultant fluxes on the boundary surfaces.
      
In the cases, systematical analyses were made for generalization and greylization of the hydrogeologic conditions, setting up of the grey model, identification and correction of the model as well as its prediction and evaluation.
      
The changes of seismic frequency with time are studied using grey model method, and the time of the biggest change rate is taken as original time of the main shock.
      
Because most of the parameters characterizing groundwater flow are of grey nature, a grey model can better describe the groundwater flow than the traditional "white" model.
      
The grey model can be used to predict a groundwater head based on the observed groundwater head data and the random degree in the groundwater head each month can be judged by the grey interval.
      
Applying grey model to prioritise technical measures in quality function deployment
      
In this study, grey model, both GM(1,N) and GM(0,N) models, is applied to determine the priority of technical measures by evaluating the impact of each technical measure in the system.
      
This study compared three forecasting methods based on their accuracy or absolute errors in forecasting air pollution in a traffic tunnel: the Grey model (GM), the Crank-Nicholson implicit scheme model, and the forecasting combination model (FCM).
      
Modified Grey Model for Estimating Traffic Tunnel Air Quality
      
The proposed method cannot only enhance the prediction accuracy of the original grey model, but can also solve the jump data forecasting problem something for which the original grey model is inappropriate.
      
Avoiding the Eddington approximation the remaining simplifications in the basic equations are discussed, the generalized dispersion relation is analysed, and some wave properties in a grey model are studied.
      
The radiative properties of soot were described by a grey model.
      
 

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