片语

Principal Geographic Component distribution主成分地理分布

principal l component transformation主分量变换

principal curve component主曲线成分

principal independent component neural network主独立元神经网络

Nonlinear Principal Component Analysis非线性主成分分析

Landsat principal component image陆地卫星主分量图象

principal independent component network主独立元神经网络

principal component model[数]

main constituent主成分

principal-component regression analysis采用主成分回归方法

英汉例句

• the principal component regression (pcr) and partial least square regression (plsr) methods are applied to determine the weight of the rbf networks with certain good results.

  将主成分回归（pcr）和偏最小二乘回归（plsr）的方法引入rbf网络中，提出了分别采用这两种方法确定网络权重的算法。

• principal component analytical method can get rid of disadvantages of other methods, reduce subjective factors and make analytical result reflect facts objectively.

  主成分分析方法能够克服一些其他分析方法的缺点，减少主观的因素，使分析结果能够客观地反应事实。

• an efficient algorithm using divergence based class-within principal component analysis and analysis of corresponding coefficients is proposed.

  该文提出了一种新的基于分类别主成分分析散度的波段选择方法。

• firstly, classification index system was set up, then was selected in 22 original variables by the principal component analysis.

  首先建立指标体系，并运用主成分分析法对22个类型划分指标进行筛选。

• the karst area in guizhou province was classified into five eco-economic categories by the principal component analysis and fuzzy poly-class method.

  运用主成分分析法和聚类分析法，对贵州喀斯特地区的生态经济类型进行了划分。

• then analysis several main factors use of principal component analysis algorithm, rejecting the factor with minimum weight.

  对其中的几个主要因素进行主成分分析，剔除权重最小的因素；

• cluster analysis and principal component analysis on data of anthropometry from asian populations showed that asian populations could be divided into north populations and south populations.

  本文通过对亚洲群体体部测量资料的聚类分析与主成分分析，认为亚洲群体可分为北方类群与南方类群。

• they are all initialized by the first principal component for the close relation between principal curves and the principal components.

  然而实验发现第一主成分未必是算法初始化的最佳选择。

• methods of principal component analysis, grey incidence analysis were employed.

  研究方法：主成分分析法、灰关联分析。

• combining the principle of the principal component transform and various data processing methods, automatic detection of land using changing information can be implemented by different methods.

  结合主成分变换原理和不同的数据处理过程，可以用不同的方式实现土地利用变化信息的自动发现。

• through principal component analysis, we have synthesized numerous indexes, (eliminated) information overlapping of the sample, and reduced the input dimension of bp network.

  通过主成分分析法将众多指标进行综合，消除样本间的信息重叠，降低bp网络的输入维数。

• the estimator based on kernel principal component extraction requires to stratify the training samples of interested signals with respect to their respective frequencies.

  基于多层核主成分提取估计器需要将调制信号的训练样本根据各自的频率进行分层。

• this paper shows the application of ihs color transform and principal component transform for information extraction from tm image in suzhou study area.

  本文讨论了ihs彩色变换和主成分变换在苏州市tm多波段图像信息提取研究中的应用效果。

• the experiment results prove that this method is efficient, and it outperforms the principal component analysis.

  实验结果表明，该降维方法比较有效，并且较主成分分析具有明显的优势。

• applying principal component values to select parents for crossing has an alike result as investigating in the field.

  根据主成分值筛选杂交亲本的结果同田间观察的结果一致；

• we calculated metagenes as a surrogate for all genes contained within a particular cluster and visualized the relative expression in relation to time to metastasis with principal component analysis.

  我们以特定基因族里的转位基因为代表用主成分分析法计算其与肿瘤转移时间的表达。

• the principal component analysis(pca) approach for sensor fault detection, identification and reconstruction in hvac system is presented.

  提出了空调系统传感器故障检测、故障识别、故障重构的主成分分析方法。

• this thesis presents principal component analysis(pca) approach for sensor fault detection, identification and reconstruction in hvac system.

  本文提出了用主成分分析法（pca）进行空调系统传感器故障检测与诊断的基本思想。

• furthermore, we also studied the relative strength of different composition to oxidation stability by principal component analysis.

  此外，还通过主成分分析的方法分析了不同组成对旋转氧弹值的影响强弱。

• regress equation about the yield and principal component values was built by using the regression analysis.

  通过回归分析，建立了小麦产量与主成分值之间的回归方程。

• listed companies; performance evaluation; strategic; principal component analysis; entropy method.

  上市公司；业绩评价；战略；主成分分析；熵值法。

• firstly, the spectrum data is processed by principal component analysis(pca), then, an estimating model based on a gaussian kernel function is set up using the pca data and their temperatures.

  首先对历史光谱数据进行主成分分析（pca）处理，再根据pca特征数据与其表面温度的对应关系建立温度的估计模型，该模型是基于高斯核函数的。

• from researching on the universal principle of feature fusion of image, a new algorithm was proposed which based on the 2 dimension principal component analyses(for short 2dpca).

  通过对图像特征融合的一般规律的研究，提出了一种基于二维主成分分析（简称2dpca）的图像特征融合算法。

• the pca approach partitions the measurement space into principal component subspace (pcs) and residual subspace(rs).

  主成分分析法将测量空间分为主成分子空间和残差子空间。

• then all data were analyzed by principal component regression (pcr) and partial least square (pls).

  采用主成分回归（pcr）和偏最小二乘法（pls）对试验数据进行了多元统计分析。

• fault can be reconstructed by sliding the measure to principal component subspace along the direction of fault.

  沿着故障方向，测量数据逐步逼近主成分子空间可以实现数据的重构。