现代矿业
現代礦業
현대광업
Express Information of Mining Industry
2012年
3期
5-6,9
,共3页
王文才%侯涛%杨驭东%王俊峰
王文纔%侯濤%楊馭東%王俊峰
왕문재%후도%양어동%왕준봉
一元线性回归%灰色理论%煤炭产量%预测%对比
一元線性迴歸%灰色理論%煤炭產量%預測%對比
일원선성회귀%회색이론%매탄산량%예측%대비
One-dimensional linear regression%Grey theory%Coal production%Prediction%Comparison
为了预测我国的煤炭产量,分别建立了一元线性回归预测模型和灰色理论GM(1,1)模型,并对预测结果进行了比较分析。结果表明,灰色理论GM(1,1)模型较一元线性回归预测模型预测精度更高,更符合我国煤炭产量的发展趋势。灰色理论GM(1,1)模型的煤炭产量预测结果表明,未来2 a我国煤炭产量呈稳定增长趋势,产量分别为34.83亿t和37.82亿t,增长比例分别为7.5%和8.5%。
為瞭預測我國的煤炭產量,分彆建立瞭一元線性迴歸預測模型和灰色理論GM(1,1)模型,併對預測結果進行瞭比較分析。結果錶明,灰色理論GM(1,1)模型較一元線性迴歸預測模型預測精度更高,更符閤我國煤炭產量的髮展趨勢。灰色理論GM(1,1)模型的煤炭產量預測結果錶明,未來2 a我國煤炭產量呈穩定增長趨勢,產量分彆為34.83億t和37.82億t,增長比例分彆為7.5%和8.5%。
위료예측아국적매탄산량,분별건립료일원선성회귀예측모형화회색이론GM(1,1)모형,병대예측결과진행료비교분석。결과표명,회색이론GM(1,1)모형교일원선성회귀예측모형예측정도경고,경부합아국매탄산량적발전추세。회색이론GM(1,1)모형적매탄산량예측결과표명,미래2 a아국매탄산량정은정증장추세,산량분별위34.83억t화37.82억t,증장비례분별위7.5%화8.5%。
To predict the coal production in China,one-dimensional linear regression prediction model and GM(1,1)model were established separately,the predicted results were comparative analyzed.The result shows that prediction accuracy of GM(1,1)model is much higher than one-dimensional linear regression prediction model,which is much suitable to predict the development trend of coal production in China.Coal Production prediction result of GM(1,1)model indicates that coal production in China will show a stable increasing trend in the future 2 years.The production is 3.483 billion ton and 3.782 billion ton,and the growth rate is 7.5% and 8.5%,respectively.