其次，采用主成分分析法确定土地利用功能分区指标。
Then, using principal component analysis method, it set up the indicator system for land-use function district.
采用主成分分析法(PCA)，对大沽夹河流域水质进行了定量化综合评价。
The water quality in Dagujia River basin was assessed by using the PCA method.
并采用主成分分析法简化神经网络结构，将网络的输入节点数从60维降低到3维。
The PCA reduced the network's input nodes from 60 to 3 to simplify the neural network's structure.
在此基础上，采用主成分分析法对“五因素”进行特征提取，降低BP网络的输入维度。
On the above basis, we used principal component analysis of the "five factors" for feature extraction and reduced the input dimension of BP network importation.
利用用户认知的不确定性设计定向变异算子。首先，采用主成分分析法辨识用户认知的不确定性；
A directional mutation operator is designed by using the user's uncertain cognitive. The main ingredient analysis is used to identify the user's uncertain cognitive.
方法采用专家咨询打分法、离散趋势法、主成分分析法和聚类分析法进行分析。
Methods The methods of analysis were used by expert consulting graded approach, discrete tendency, principal component analysis and cluster analysis.
采用专家评价法与主成分分析法组合的方法进行评价计算是为了解决采用单纯的专家评价法过分依赖专家的主观性问题。
Combing the expert evaluation method with principal component analysis method is to solve the over-reliance on subjective issue of expert evaluation method.
方法：采用直接测定法测得了样品的FTIR，并结合主成分分析法进行排序比较。
Method: Using fourier transform infrared spectrometer to record the characteristic spectra of eleven samples of Dendrobium, and to compare the spectra by PCA(principal component analysis).
方法：采用直接测定法测得了样品的FTIR，并结合主成分分析法进行排序比较。
Method: Using fourier transform infrared spectrometer to record the characteristic spectra of eleven samples of Dendrobium, and to compare the spectra by PCA(principal component analysis).
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