然而实验发现第一主成分未必是算法初始化的最佳选择。
They are all initialized by the first principal component for the close relation between principal curves and the principal components.
用南方涛动指数(SOI)的第一主成分表示年涛动强度。
The first principal component of the Southern Oscillation Index (SOI) is used as the intensity of annual SO.
建立了基于层次一主成分分析法的高等级公路安全综合评价模型，并给出评价案例。
The comprehensive evaluation model based on AHP and primary component analysis has been set up to evaluate the traffic safety and a relevant appraisal example is given in the paper.
结果中国人群HLA -A位点的第一主成分自北向南形成了明显的遗传地理梯度变异。
Results the first principle component of the HLA -a loci in the Chinese population has obvious geographic genetic structure from north to south.
第一主成分综合反映了区内土壤盐渍化程度，第二和第三主成分联合反映了土壤的碱性特征。
The first principal component can denote the degree of soil salinity, and the second and third principal component can denote the degree of soil alkalinity.
根据第一主成分和第二主成分的特征向量计算各时间段的第一主成分和第二主成分的指标值。
Then utilizing principal component analysis, the author analyzed the data of each period and concluded that the first and second principal component's accumulative proportion is more than 85 percent.
另一个方面，各主成分之间互不相关，所以我们可以单独考虑其中某一主成分而不考虑其他主成分。
On the other hand, principal components are uncorrelated, so we can talk about one principal component without referring to others.
与传统方法相比，本文方法更为合理地保留了原始指标矩阵中的信息，且第一主成分的贡献率有了显著的提高。
Comparing with the traditional methods, it could hold more information of the original index matrix and had much higher contributing rate of the first principal component.
近百年来旱涝等级资料的第一主成分有显著的3年、8年、11年周期，第二主成分有14年、29年的周期。
The first main component of recent100year through drought and excessive rain ranking data has an obvious3| 8| 11| year cyc the second component14| 29| year cyc.
它主要对所选择的40只绩优股，进行横向的比较，并根据第一主成分得分进行排序，给广大的投资者提供参考。
We mainly carry out more lateral comparison for the 40 blue chips selected, and they have a rank according to the scores of the first principal component to offer reference to masses of investor.
结果表明：祁连山附近气温在空间上具有很好的一致性，年平均气温的第一主成分的方差贡献可占总方差的75%左右。
The results show temperature spatial variations have high consistency, the variance ratio contribution of the first principal component is about 75%.
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。
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).
这些需作校正计算的杂质，通常以主成分为参照采用相对保留时间定位，其数值一并载人各品种项下。
Such impurities requiring calibration calculation normally use main component as reference and use relative retention time for orientation, such value are to be recorded under each type.
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。
Principal component analytical method can get rid of disadvantages of other methods, reduce subjective factors and make analytical result reflect facts objectively.
为了进一步提高预测精度和网络训练的效率，对众多的预报因子采用主成分分析的方法进行降维处理。
For improving forecast accuracy and the efficiency of network training, we USES principle components analysis method to reduce the dimensionality of the feature space.
由于工具误差分离存在着很强的复共线性，传统的最小二乘方法与主成分方法不能很好的解决这一问题。
Because the separation for GISE is an almost singular regression problem, the classic least square method and principal component method are not satisfactorily for solving the problem.
讨论岭型主成分估计在一类降维估计中的方差性质，证明了它的方差和在这类降维估计中最小。
This paper deals with the variance property of combining ridge and principal components estimate in the class of reduced-dimension estimates.
主成分分析法是一种有效的数据压缩方法。
The principal component analysis is a kind of effective data compression method.
线性主成分分析是一种线性分析方法，而数据通常是非线性的。
Principal component analysis is a linear method, but the most data are nonlinear.
本文提出一种利用平行坐标图的多元信息表示对主成分分析特征提取方法进行优化的分类技术。
A novel method for optimizing the principle component analysis in feature extraction is proposed, which making use of parallel coordinate plot for graphical presentation of multivariate information.
本文运用BP神经网络和主成分分析相结合的方法构建了一个商业银行风险预警模型。
The paper sets up a risk early-warning model using the methods of BP neural network and principal component analysis.
主成分分析能有效估计这一几何体的本征维数。
The principal component analysis can estimate the intrinsic dimensionality of the hyper-plane.
研究了改善主成分分析算法鲁棒性的一种实现途径。
One way to improve the robustness of principal component analysis is studied in the paper.
设计了一种基于主成分分析的分类器集成方法。
A classifiers ensemble approach based on Principal Component Analysis (PCA) was proposed.
在多指标综合评价中，主成分分析方法是一种较为客观的综合评价方法。
Among the methods of multiple indexes comprehensive evaluation, primary component analysis (PCA) is a relatively objective one.
方法采用基于MVT和LMS方法的一种稳健主成分回归方法来诊断异常点，并结合实例进行方法的对比。
Methods We introduce a robust principal component regression based on MVT and LMS to detect outliers, and compare methods using a practical example.
采用主成分分析方法，提出了一种空调器多翼离心通风机性能的综合评定方法。
The method of main element analysis is used. A comprehensive evaluation method of performance for multi-blade centrifugal fan in air conditioner is given.
本文基于最小二乘方法和主成分估计思想，构造了一种丢失数据的稳健修复算法，并可对失真数据予以修正。
Based on the least square method and main elements analysis, this paper proposed a robust algorithm to repair the lost and distortion data.
针对间歇过程过渡状态下具有的复杂过程特性，提出一种基于二维动态主成分分析(2ddpca)的故障诊断方法。
A novel modeling method, two-dimensional dynamic principal component analysis (2ddpca), was developed for monitoring batch process transition in author's previous work.
而主成分分析法是一种多指标决策的统计方法，能有效弥补传统分析方法的弊端。
The main ingredient analysis, which can solve the traditional analysis problems effectively, is a kind of statistical analysis containing multiple attribute decision-making.
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