نتایج جستجو برای: grey model

تعداد نتایج: 2120234  

2013
Liqin Liu Yuehong Liu

Based on the set of an indicator system and the grey relational analysis model, the regional technology innovation ability of China is evaluated. It shows that the regional technology innovation ability of China is improving gradually; the level of technology input and the environment of technology innovation are promoting the development of the technology innovation ability of China, the level...

2011
Tao Li Rights Min Li

This paper constructs a four factors theoretical model of Chinese small and medium enterprises based on the “cartoon characters’ reputation enterprise marketing and management capabilities – protection of the cartoon image institutional environment” by literature research, case studies and investigation. The empirical study show that the greatest impact on current merchandising rights income is...

1999
S. Höfner

Existing time-dependent dynamic model atmospheres for AGB stars suffer from the fact that they are based on grey radiative transfer which is a poor approximation for cool line-blanketed atmospheres. Therefore, frequency-dependent radiative transfer has been included into a well-tried radiation hydrodynamics code to obtain more realistic models. First results concerning the structure of such non...

2017
Kedong Yin Ya Zhang Xuemei Li

Owing to the difference of the sequences' orders and the surface structure in the current panel grey relational models, research results will not be unique. In addition, individual measurement of indicators and objects and the subjectivity of combined weight would significantly weaken the effective information of panel data and reduce the reliability and accuracy of research results. Therefore,...

2012
Jun Lv Weifeng Yin

The rapid development of agricultural modernization in Hubei province has an influence on cultivated land resources variations to a certain degree. This paper used grey relational analysis method,combined with Hubei province cultivated land area decreased data within the year covering 2000 to 2010 and agricultural modernization development index data, then analyzed the influence relationship be...

Journal: :ISPRS Int. J. Geo-Information 2017
Luyi Bai Li Yan Zongmin Ma

Interpolation and prediction of spatiotemporal data are integral components of many real-world applications. Thus, approaches of interpolating and predicting spatiotemporal data have been extensively investigated. Currently, the grey dynamic model has been used to enhance the performance of interpolating and predicting spatiotemporal data. Meanwhile, the Extensible Markup Language (XML) has uni...

Journal: :Natural Hazards 2021

The linear relationship of the original grey prediction model is too single, and does not consider time delay effect current input parameters on output parameters. In order to solve these problems, interval number sequence taken as modelling model, nonlinear parameter γ time-delay τ are introduced into multivariate so construct multivariable for number. view uncertain characteristics smog index...

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