Both UPGMA cluster and PCA analysis showed clear genetic relationships between the 24 mulberry cultivars. The major clusters were related to known pedigree relationships.
UPGMA法聚类和PCA分析都清楚地显示了24个桑树选育品种的亲缘关系，聚类结果与桑树品种的系谱基本一致。
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。
Existing temporal component extraction method USES multiple regression analysis (MRA) after the application of temporal PCA to estimate the amplitude of resultant components and thus made it up.
现有的时间成分提取法在进行时间pca之后，利用重回归分析来估计成分的波形和振幅，从而弥补了这一缺陷。
Principal component analysis (PCA) is used in data compressing and statistical features extracting.
主分量分析技术通常用于数据压缩和统计特征的提取。
A nonlinear filtering method based on principle component analysis (PCA) was proposed according to the statistical characteristics of the Doppler ultrasound blood flow signal and wall thump signal.
根据超声多普勒血流信号和血管壁搏动信号的统计特性，提出了一种基于主元分析的非线性滤波方法。
The result of testing shows that PCA laser fluorescence spectra data analysis identification model can identify spill oil effectively.
测试实验得出，PCA激光荧光光谱分析识别模型能够有效地识别溢油。
The principal composition analysis (PCA) was used to study the multivariate characteristics of desert vegetation in Junnger Basin.
用主成分分析排序法分析准噶尔盆地沙漠植被的多元特征。
Among the methods of multiple indexes comprehensive evaluation, primary component analysis (PCA) is a relatively objective one.
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。
The authors try to use multivariate statistics method based on principal component analysis (PCA) to monitor continuous casting mould process.
尝试性地将基于主元分析的多变量统计方法应用于连铸结晶器过程的监测。
The authors present a new method to remedy the negative effect arising from slant vehicle license plates character segmentation and recognition based on principal component analysis (PCA).
为解决机动车牌图像倾斜将对其字符分割与识别带来不利的影响，提出一种基于主元分析(PCA)的车牌图像倾斜校正新方法。
Results Analyzing the data with principal component analysis(PCA) by model recognition, the different agents can be distinguished in the scattered plots.
结果所得的数据通过模式识别法中的主成分分析（PCA），在得分散点图中实现了对不同种类的制剂的区分。
Numerous statistical process monitoring methods based on principal component analysis (PCA) have been developed and applied to various chemical processes for fault detection and identification.
基于主元分析(pca)的统计检测方法已经被广泛应用于各种化工过程的故障检测和识别。
This paper presents a human face detection and localization approach which is based on skin color detection and principle component analysis (PCA).
提出一种基于人脸肤色统计模型和主元分析(pca)的人脸检测和定位方法。
The 25 plots of degraded karst forests were chosen as the research objects and 25 plots were divided into 11 forest types by principal component analysis (PCA).
用25个退化喀斯特森林样地作为研究对象，采用主分量分析方法，把25个样地划分成11个森林类型，并对各类型的分布及特征进行阐述。
Principal component analysis (PCA) has found wide application in chemical process monitoring and product quality control as a data-driven modeling method.
主元分析(PCA)作为数据驱动的一种统计建模方法，在化工产品质量控制与故障诊断方面得到广泛研究和应用。
This paper proposes a face recognition algorithm based on the principle components analysis (PCA) reconstruction.
提出一种基于主向量分析(PCA)重建的人脸识别方法。
A face recognition method based on the fusion of principal component analysis (PCA) and singular value decomposition (SVD) is presented.
提出了奇异值分解(SVD)和主分量分析(PCA)相结合的人脸识别算法。
Traditional principal analysis method (PCA) based on linear transform is effective method of seismic attribute dimension-reducing optimization.
传统的基于线性变换的主成分分析法(PCA)是一种有效的地震属性降维优化方法。
By far, the most important reason for performing a principal components analysis (PCA) is to use it as a tool for screening multivariate data.
到目前为止，最重要的原因为执行一个主成分分析(PCA)是使用它当作一个工具，用于筛选的多元数据。
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。
In this paper, the principle component analysis (PCA) theory is introduced, and the theory is used for fault diagnosis of lock of actuator.
文中介绍了主元分析算法以及在故障检测方面的应用。
Principal component analysis (PCA) showed that the 4 groups were clearly distinguishable from each other.
主成分分析(pca)的结果显示，这4组患者可以清楚的加以区分。
We can simplify the analysis of the change of interest rate curve by using the PCA(principal(components) analysis), and get better known to the term structure of the interest rates.
文章认为运用主成分分析方法能极大地简化对利率曲线变化的分析，便于准确了解利率曲线结构变动的模式。
Relationship between weed emergence and meteorological factors were analyzed by partial correlation analysis (PCA) and path analysis (PA).
采用偏相关分析和通径分析，研究了杂草出苗与气象因子间的关系。
The optimum region of current efficiency was obtained by principal component analysis(PCA) in poly-dimension and result the optimum point in the optimum area.
用主成份分析对高维模式空间降维，寻找模式空间电流效率较高的区域；
For the sake of better carrying on fault detection and diagnosis, introduced the theory of principal component analysis (PCA) and the mechanism and strategy based on PCA for the fault of process.
为了更好的进行故障检测与诊断，介绍了主元分析(PCA)理论，给出了基于主元分析的过程故障辨识机理及策略。
Applying the principal component analysis method (PCA) to these variables, we compile a single composite index (G-Index) to rank Chinese listed firms' corporate governance levels.
基于这个变量体系，我们运用主元因素分析法编制了一个可反映上市公司治理水平的综合指标——G指标。
Principal component analysis (PCA) and partial least squares (PLS) are the conventional techniques of multivariate statistical process control but exist some defects.
在多变量统计过程控制中，传统的方法主要包括主元分析和偏最小二乘，这些方法存在着诸多缺陷。
Principal component analysis (PCA) and partial least squares (PLS) are the conventional techniques of multivariate statistical process control but exist some defects.
在多变量统计过程控制中，传统的方法主要包括主元分析和偏最小二乘，这些方法存在着诸多缺陷。
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