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11.
SIJMEN DE JONG 《地理学报(英文版)》1993,(6)
PLS1 regression is generally viewed as lying in between PCR and OLS regression.Proof is given thatthe coefficient of determination,R~2,for a PLS multivariate calibration model is at least as high as thatfor a PCR model with the same number of components.It appears that PLS can be linked to acorrelation-weighted polynomial regression of a constant response on the eigenvalues of the covariancematrix of the predictor variables. 相似文献
12.
燕山带中生代主要构造事件与板块构造背景问题 总被引:94,自引:9,他引:94
对冀北、辽西火成岩体和火山岩的定年与野外构造的研究揭示,燕山地区主要缩短变形期为:①前中侏罗期(180Ma);②晚侏罗期(161~148Ma);③早白垩期(143~127Ma→117Ma)。前中侏罗期为SN向缩短可能与蒙古弧-华北板块沿索伦缝合带拼合有关。晚侏罗世-早白垩世的缩短变形可能是西伯利亚与蒙古-华北拼合板块沿其北1000~1800km外,蒙古-鄂霍茨克缝合带碰撞的板内响应。我国东部NNE 相似文献