second principal component 中文意思是什麼
second principal component
解釋
第二主成分-
The soil attribute data are built based on the second soil general investigation and samples got outside and analyzed inside. the assessment system of nanjing soil quality is built by taking advantage of principal component analysis and multiple linear regression equation
在第二次土壤普查資料和野外采樣分析基礎上建立土壤屬性數據庫,用主成分分析法和多元回歸法對南京不同類型土壤進行生產潛力評價,建立南京土壤質量評價體系。 -
Second, using the method of wavelet - transform, extract the stable second - low frequency wavelet coefficient, build face database. third, for the sake of eliminating the correlations between entities of the image vector and extracting character - vector, which keeps the main class - information and can be used to rebuild original image, the principal component analysis ( pca ) was used
對人臉庫進行主成份分析,此方法根據人臉圖像整體的灰度相關性來提取特徵向量,所提取出的特徵向量保留了原圖像空間中的主要分類信息,並能在均方誤差最小的意義上重建原圖像。 -
Second principal component
第二主成分
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