价值工程
價值工程
개치공정
VALUE ENGINEERING
2014年
31期
9-10,11
,共3页
泰国菠萝%偏最小二乘回归%交叉有效性
泰國菠蘿%偏最小二乘迴歸%交扠有效性
태국파라%편최소이승회귀%교차유효성
Thai pineapple%partial least squares regression%cross validation
本文采用偏最小二乘回归模型（PLS），以泰国菠萝贸易为例，通过变量投影重要性准则筛选自变量，由交叉有效性提取主成分，进而建立偏最小二乘回归模型。深入分析了各指标对泰国菠萝出口贸易的影响。研究表明泰国菠萝出口与原料价格及工厂生产加工速度密切相关，并且偏最小二乘回归的拟合效果优于普通最小二乘回归。
本文採用偏最小二乘迴歸模型（PLS），以泰國菠蘿貿易為例，通過變量投影重要性準則篩選自變量，由交扠有效性提取主成分，進而建立偏最小二乘迴歸模型。深入分析瞭各指標對泰國菠蘿齣口貿易的影響。研究錶明泰國菠蘿齣口與原料價格及工廠生產加工速度密切相關，併且偏最小二乘迴歸的擬閤效果優于普通最小二乘迴歸。
본문채용편최소이승회귀모형（PLS），이태국파라무역위례，통과변량투영중요성준칙사선자변량，유교차유효성제취주성분，진이건립편최소이승회귀모형。심입분석료각지표대태국파라출구무역적영향。연구표명태국파라출구여원료개격급공엄생산가공속도밀절상관，병차편최소이승회귀적의합효과우우보통최소이승회귀。
Based on the partial least (PLS) method, for example of the factors that effect on Thai pineapple exports, we select variables by variable importance in projection and extract principal components via cross validation, then establish the partial least square models. We analyze the impact of each indicator on Thai pineapple exports deeply. Studies have shown that Thai pineapple exports are closed related to the raw material prices and the speed of production and processing in factories, and the effects of partial least squares regression fit better than ordinary least squares regression.
