The principal component analysis implements the column-wise compression, using the correlation between attributes.
主成分分析使用属性之间的相关性实现按列压缩。
As the principal component in glass, silicon dioxide was used as early as 5000 BC.
作为玻璃的主要成分，二氧化硅早在公元前5000年就被使用。
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。
The paper sets up a risk early-warning model using the methods of BP neural network and principal component analysis.
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。
Methane is a principal component of natural gas.
天然气的主要成分是甲烷。
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。
The principal component analysis is a kind of effective data compression method.
主成分分析法是一种有效的数据压缩方法。
The principal component analysis can estimate the intrinsic dimensionality of the hyper-plane.
主成分分析能有效估计这一几何体的本征维数。
The content includes in the fuzzy segment, BP neural networks and principal component analysis.
内容涉及模糊分割技术、BP神经网络、主元分析技术。
This paper studies the design of two channel regular orthogonal principal component filter Banks.
本文研究了两通道正则正交的主分量滤波器组设计。
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。
Then the principal component weight method is used to determine the weight of19assessment indexes.
利用主成分赋权法进行了19个评价指标权重的确定工作。
In this paper, using principal component method 115 strong-motion earthquake records are analysed.
本文运用主成份法对115个强地震运动资料进行了分析。
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。
In the training phase, kernel principal component analysis is used to capture nonlinear handwriting variations.
在训练阶段，核-主元分析用来捕捉非线性的手写变化。
This paper presented a new multi-template character recognition method based on principal component analysis(PCA).
本文提出了一种基于主元分析法（PCA）的多模板字符识别算法。
An outlier detection algorithm based on principal component analysis and the sum of attributes distance is proposed.
提出了一种基于主分量分析和属性距离和的孤立点检测算法。
An improved adaptive principal component extraction algorithm based face recognition method is proposed in this paper.
论文提出了一种基于改进的自适应主元提取算法的人脸识别方法。
The results of the experiment show that the anomaly detection method based on principal component analysis is effective.
实验结果证明了基于主成分分析的异常检测方法的有效性。
Utilizing the principal component and K-mean cluster analysis, the summer rain belts in eastern China have been classified.
利用主分量分析和K -均值聚类分析的方法，对我国东部夏季雨带进行客观的气候分类。
Among other 8 bands, bands 6 and 7 contain more information, and band 6 makes great contribution to the principal component.
在其他的8个波段中，6,7波段的信息较为丰富，6波段对主成分的贡献大。
Time phase for the first complex principal component and time amplitude for the second one may use forecast of days of yearly snow lying.
第一复主分量的时间位相和第二复主分量的时间振幅峰值年可用于年积雪日数的预测。
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。
The types of electrofacies of standard sample beds from key well are classified by a combination of principal component and cluster analysis.
用主成分分析与聚类分析结合的方法划分关键井中标准样本层的测井相类型；
To improve the running efficiency of the algorithm, the stochastic mapping of the patterns was modified based on principal component analysis.
为了提高群体智能聚类算法的运行效率，提出了利用主成分分析改善模式投影时的随机性。
Then the basic concepts of principal component analysis and partial least square regression are studied, as well as their advantages and disadvantages.
引入了主成分分析与偏最小二乘回归等多元统计与回归方法，并分析了其基本思想与优缺点。
The principal component analysis can determine a few principal components from the connected factors and evaluate the all-around qualities of students.
采用主成分分析方法，从多种影响因素中找出几个主要成分指标，较为全面地综合评价了学生素质。
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.
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。
High dimension was changed into low dimension by using principal component analysis method, process detecting could be carried out in the low dimension space.
应用主元分析方法将高维数据转换到低维数据空间，这使得过程监测可以在低维的空间内进行。
High dimension was changed into low dimension by using principal component analysis method, process detecting could be carried out in the low dimension space.
应用主元分析方法将高维数据转换到低维数据空间，这使得过程监测可以在低维的空间内进行。
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