... of the prosed method. Assume that: (4) J ( θ ˆ n ) = ( Y − B n θ ˆ n ) Τ ( Y − B n θ ˆ n ) . Grey systems modelling and prediction Practical applications of grey models Grey prediction GM (1,1) model Recurrence...

... and 2015 is less than the predicted value. In general, the error between the actual and predicted respiratory infection rates in 2011–2017 is within the controllable range, and the development trend between the two is relatively consistent. Grey systems modelling and prediction Grey GM(1,1) model...

... equation of the grey differential equation x⁽⁰⁾(k)+az⁽¹⁾(k)=b(z⁽¹⁾(k))^γ of NGBM(1,1) is shown as follows: Grey systems modelling and prediction Practical applications of grey models Combined grey models...

...: Definition 1. Set as the original date sequence: Grey systems modelling and prediction Practical applications of grey models Combined grey models More and more combination models with high research precision emerged recently. Zhang et al. (2013) constructed the combined...

... Publishing Limited Licensed re-use rights only Grey systems modelling and prediction Practical applications of grey models Combined grey models Tourism industry International tourism Tourism in Mauritius Tourism prediction Grey system theory models Even model GM(1,1) Non-homogeneous discrete...

... ) . Grey systems modelling and prediction Grey forecasting Original form Even form Even grey model (EGM), Origin Shadow equation Model GM(1, 1) Original difference (ODGM) Even difference (EDGM) Discrete grey model Grey disaster forecasting The time response formula of original difference...

... township i to Puwa; 3* the distance from township i to Dashiwo; 4* the distance from township i to Daanshan; 5* the distance from township i to Fangshanchengguan. © Emerald Group Publishing Limited 2015 Grey systems modelling and prediction Combined grey...

... for the primitive data into state: (Equation 22) © Emerald Group Publishing Limited 2015 Grey systems modelling and prediction Practical applications of Grey models Combined Grey models Along with China’s industrialization and urbanization accelerated, a large number of cultivated land...

... Limited 2015 Grey systems modelling and prediction Combined grey models Aviation industry is a national strategic development industry. It not only represents development level of a nation’s manufacturing industry but also embodies a nation’s core competitiveness. Successful development...

... of the regional economy and logistics must be understood in order to drive the economic transformation and progress. Yimin Huang can be contacted at: huang800526@163.com © Emerald Group Publishing Limited 2014 Grey systems modelling and prediction Sequence operator and grey sequence...

... at: 3306866@163.com © Emerald Group Publishing Limited 2014 Grey systems modelling and prediction Practical applications of grey models Ever since Professor Deng Julong proposed the grey system theory 30 years ago the grey forecast model has been widely applied to economic and social...

... equation: (Equation 6) © Emerald Group Publishing Limited 2014 Grey systems modelling and prediction Practical applications of grey models Since 1982 (Deng, 1982), the grey systems theory has attracted a large number of researchers and has been utilized in a variety of fields...

... trend. Theorem 1. Assume X=(x(1),x(2), …, x(n)) is the original sequence. Pinpin Qu can be contacted at: 740774638@qq.com © Emerald Group Publishing Limited 2014 Grey systems modelling and prediction Practical applications of grey...

.... Quanda Zhang can be contacted at: samuelzhang@mail.com © Emerald Group Publishing Limited 2014 Grey systems modelling and prediction Practical applications of grey models Combined grey models Financial deepening Financial repression The financing of the small- and medium-sized...