Global Geology 2015, 18(1) 26-31 DOI:     ISSN: 1673-9736 CN: 22-1371/P

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Keywords
Grey System GM (1
1) model
unary linear regression model
model test
prediction
coal con- sumption
Jilin Province
Authors
TIAN Songlin and LU Laijun
PubMed
Article by TIAN Songlin and LU Laijun

Application of Grey System GM (1�� 1) model and unary linear regression model in coal consumption of Jilin Province

TIAN Songlin and LU Laijun

College of Earth Sciences��Jilin University��Changchun 130061��China

Abstract��

The data on the coal production and consumption in Jilin Province for the last ten years were collect- ed��and the Grey System GM (1�� 1) model and unary linear regression model were applied to predict the coal consumption of Jilin Production in 2014 and 2015�� Through calculation��the predictive value on the coal con- sumption of Jilin Province was attained��namely consumption of 2014 is 114.84 ×10 6 t and of 2015 is 117��98 × 10 6 t��respectively�� Analysis of error data indicated that the predicted accuracy of Grey System GM (1�� 1) model on the coal consumption in Jilin Province improved 0��21% in comparison to unary linear regression model��

Keywords�� Grey System GM (1   1) model   unary linear regression model   model test   prediction   coal con- sumption   Jilin Province  
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