The authors conducted systematical study on warning index system and warning method of atmospheric environment,water resources,noises,ecological quality,and environment quality in coalmines. They used gray models to forecast environment quality in coalmines and established classificatory warning index with environment quality,which made the level of future environment quality visual and gave their study more management and application value.
The gray model used in load forecasting is built up,and the gray model is used,which has three kinds of different ranks to estimate the load. According to that gray models estimate existed bigger error and change violently,evidential theory is put forward to carry fusion on errors of forecasting results.
The paper,by demonstrating and analyzing the application of the Grey system Theory in the stock market,is not only to improve on Gray Model and establish five best-equal-dimension-newly-information gray models,but also to bring forward a new classified method which aims to forecast and classify of all stock's closing price every week in Shanghai.
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
Two dynamic grey models DGM (1, 1) for the verification cycle and the lifecycle of measuring instrument based on time sequence and frequency sequence were set up, according to the statistical feature of examination data and weighting method.
They were combined with the GM(1,1) model to form hybrid grey models.