scholarly journals Forecast Model Research for u-Gov's Social Welfare Applied IT Convergence Technology

Author(s):  
Young-Chul Jeong ◽  
Jong-An Park
Author(s):  
Zhenchang Zhang ◽  
Libin Gao ◽  
Minquan Guo ◽  
Riqing Chen

The 4D variational (4DVAR) assimilation numerical ocean model research is proposed. This model for Taiwan Straits (TWS) is based on Regional Ocean Model System (ROMS). The background of the 4DVAR method is introduced and the development process of assimilation system is presented. In the present research, the model assimilated with Sea Surface Temperature (SST) data of HY-2 satellite (Qi, 2012; Xu, 2013) which is the first marine environmental monitoring satellite of China. In this paper, the model processes from Feb. 1 to Feb. 7, 2014 with one-day assimilation time window and root mean square error (RMSE) reduces averagely by 14.7%.


2011 ◽  
Vol 65 ◽  
pp. 40-43
Author(s):  
Xiao Zhao ◽  
Xue Feng Liu

In order to help companies achieve the efficient and accurate forecast production costs with little human and financial resources possibly, we selected a steel factory as example, and the trend extrapolation method is used to study as the main method which belongs to time series forecasting method, the experimental results obtained good effect in practical applications, the study method is very simple and cost savings, the achievement can be used in enterprise easily.


2007 ◽  
Vol 10 (3) ◽  
pp. 213-217
Author(s):  
Wei Wang ◽  
Quan Wang ◽  
Chao Wang

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