principal component的例句大全

127 radish germplasm were clustered into four kinds based on the glucosinolate marker by the method of hierarchical cluster analysis, and four kinds by the principal component analysis. The result of two kind of taxonomic approach maintained consistent basically.

利用硫代葡萄糖苷标记对127份萝卜种质进行了系统聚类分析，结果将供试材料分成了4类，主成分分析也将其分为4类，两种分类方法的结果基本保持一致。

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In order to improve the accuracy of detection for the landscape change, we presented the differencing image PCA method to improve the Principal Component Analysis ( PCA) and the band difference of images method using the multi-temporal remotely sensed data of TM ( Thematic Mapper).

为了提高检测精度，我们利用TM卫星遥感数据，改进了主成分分析法和图像差值法，提出了差分主成分分析法。

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The methods of diversity exponent, evenness exponent, richness, principal component analysis and optimal sorting method were used to study the community structure and temporal pattern of arthropods in cotton-alfalfa intercrop in Dunhuang.

应用多样性指数、均匀性指数、丰富度、主分量分析方法和最优分割法，研究了不同时期敦煌间作苜蓿棉田节肢动物群落结构及时间格局。

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At the beginning, I analyze the structure of interest rate term structure of treasury bond with principal component analysis method ( PCA), which shows that three factors' contribution rate to variance reaches 92.36%.

首先，利用主成分分析方法对我国利率期限结构进行分析，得出前三个因子的方差贡献率达到92.36%。

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Principal Component Analysis and Distribution of Polycyclic Aromatic Hydrocarbons in Crude Oils and Heavy Fuel Oils

原油与重质燃料油中多环芳烃分布特征及主成分分析

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Principal component analysis and comprehensive evaluation of environmental quantity of cultural squares in Pearl Rive Delta

城市文化广场环境质量的主成分分析与综合评价

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In pattern recognition fields, inaccurate principal component will affect final recognition outcome.

在模式识别领域，不准确的主分量会影响最终分类结果。

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Inspired by the idea of two-dimensional Principal Component Analysis ( 2DPCA) algorithm, in this thesis a novel algorithm, two-dimensional Locality Preserving Projections ( 2DLPP) algorithm, is proposed, which is a straightforward manner based on locality preserving criterion and the image matrix projection.

受二维主成分分析算法思想的启发，我们提出了一种直接基于局部保持标准和图像矩阵投影的方法&二维局部保持投影算法。

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PCA approach partitions the measurement space into principal component subspace ( PCS ) and residual subspace ( RS ).

主成分分析法将测量数据空间划分为主成分子空间 ( PCS ) 和残差子空间 ( RS ).

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Simultaneous Spectrophotometric Determination of Tungsten, Molybdenum, Tin and Titanium With Principal Component Analysis Method

主成份分析&分光光度法同时测定钨、钼、锡、钛四组份体系

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Appraisal and Analysis of Lianyungang City Competence Based on Principal Component Synthesis Model and Cluster Analysis

基于主成分综合模型和聚类分析的连云港市城市竞争力评价

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The Research of Damage Identification Method of Oil Derrick Based on the Principal Component Analysis Measured Frequency Response Functions

基于实测频响函数主成分的石油井架损伤识别方法研究

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The improved PCA is applied to mycetozoan fermentation process monitoring and fault diagnosis. The simulation result shows that the improved PCA can avoid the conservation of Q-statistical test and ensure enough information in principal component subspace.

将改进的主元分析法应用于粘菌素发酵过程监测和故障诊断中，仿真结果表明改进的PCA方法避免了Q统计量的保守性，并保证了主元子空间中的信息存量。

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The parameters of the vegetative growth, the clonal reproduction and the sexual reproduction of the natural, fertilizable, drought stress and pruning stress conditions were analyzed by the principal component analysis ( PCA), and the life cycle forms are determine by score proportion of PCA.

将正常生长与施肥、干旱和剪枝后的长春花营养生长、有性生殖、克隆生殖形态学参数进行主成分分析，根据主成分得分比例划分生活史型。

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Principal component analysis is an important analysis method in the multianalysis.

主成分分析是多元统计分析中一种重要的方法。

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Principal Component Analysis to the Trace Elements of Rhizoma Polygonatum in Different Districts of China

不同产地黄精中微量元素的主成分分析

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A Study on Spherular Pearlite Gradational Approach Based on Principal Component Analysis of Histogram

基于直方图主分量分析的珠光体球化评级方法的研究

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The determination of mechanism of parallel reaction by principal component analysis

利用主成份分析法确定平行反应的机理

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Through the approach of principal component analysis, this paper makes a positive research about the P& C insurance solvency in China, finding that it has a significant correlation with 10 internal and external factors, no correlation with the absolute number of the scale of companies.

通过运用主成分分析法对我国财险业偿付能力进行实证研究，认为我国财险公司偿付能力与10个内外影响因素具有显著相关性，但与公司规模的绝对数量不存在相关关系。

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Target Detection by Principal Component Analysis in the Presence of Reverberation

混响噪声背景下目标检测的主分量分析法

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