Xie Nai-ming

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When we establish a forecast model, we often choose the sample data, but the scheme of choosing the proper sample hasn't been solved up now. It is necessary to establish the feasible rules about how to choose the sample data and how much sample should be chosen. Due to there are much data in the economic variables, the rule must be given. The study in the(More)
To study the selection of the international cooperation project in China, a method based on grey clustering decision-making model is proposed and applied in selection of international cooperation key-technology projects in Jiangsu Province. The demand and supply information is defined as urgency and possibility indexes in the international cooperation(More)
Air pollution has become a serious problem in China. The Ministry of Environmental Protection of China releases real-time air quality monitoring data in 74 cities online. This thesis applies grey incidence analysis to assess the air quality of 12 monitoring stations. The research shows that the two methods achieve similar evaluation results. The main reason(More)
Although grey systems theory has been successfully utilized in many fields and demonstrated promising results, literatures show its performance still could be improved. Remarks on grey number and algorithms of grey numbers need to be farther discussed. Grey number is the basic element of grey systems theory. The algorithms of grey numbers are the foundation(More)
Simulation precision of conventional grey prediction models is poor when the modeling sequence has the feature of oscillation. Actually, the smoother the sequence is, the higher the simulation precision is. With the purpose of perfecting the smoothness of the oscillation sequence and improving the simulation precision of grey models, this paper researches a(More)
Grey relational degree is the synthetic measure about the similarity of developing trend and the closing of the amount between two series. As an important part of the grey systems theory, grey relational analysis is the basis of the grey clustering analysis, grey decision-making and grey controlling. In this paper, we commented on several kinds of grey(More)
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