查询词典 correlation matrix

With 35 features selected from the correlation coefficient matrix, the average classification rate of Model 3 was 91.0%.

模式3使用以相关矩阵选取35个相关性较低的变数，平均鉴别率为91.0%。

Objective To investigate the correlation of matrix metalloproteinase-2,-9 (MMP-2,MMP-9) in transitional cell carcinoma of bladder with tumor invasion and metastasis.

目的：探讨基质金属蛋白酶2（MMP-2）、基质金属蛋白酶9（MMP-9）的血清含量及组织表达与膀胱移行细胞癌侵袭转移的关系。

Progress of research on the correlation between oculopathy and the matrix metalloproteinases and tissue inhibitive factors.

基质金属蛋白酶及其组织抑制因子与眼病的相关性研究进展。

Based on the matrix of correlation coefficient,linear structural relation model was utilized for data analysis as we...

用相关系数矩阵配合模型结果显示，除上述影响糖尿病患病状况的因素外，还发现自我保健因子对患病状况有间接影响。

By introducing a local correlation coefficients matrix, this algorithm cangive more accurate judgment between noise and useful signal.

改进算法结合了不同尺度以及同尺度不同分量中小波系数的相关性，通过一种构造局部相关性系数矩阵的方法获得对边界点和噪声点更精准的判断。

Realized covariance matrix is a new measurement of the volatility and correlation of portfolio.

"已实现"协方差矩阵是对投资组合波动性及相关性的一种全新的度量方法。

Abstract］ Objective To evaluate the correlation between expression of vascular endothelial growth factor C and matrix matalloproteinases 2（MMP-2） and lymph node metastasis in thyroid papillary cancer.

目的 探讨淋巴管生长因子和基质金属蛋白酶-2（MMP-2）在甲状腺乳头状腺癌中的表达及其与淋巴结转移的相互关系。

In this paper, three methods for color image retrieval have been presented: hypercomplex SVD image retrieval, combination of hypercomplex convolution filter and hypercomplex SVD image retrieval and hypercomplex matrix correlation image retrieval. We made comparison among these hypercomplex-methods, and compared them with the traditional image retrieval methods. Experiment results showed that the hypercomplex-methods we presented in this paper could well conquer the problems existed in traditional image retrieval methods, and their retrieval results are much better. Meanwhile, this paper presented a new color image quality assessment based on hypercomplex SVD. It is a novel color image quality assessment that can be used as a graphical or a scalar measure to predict the distortion introduced by a wide range of noise sources. It reliably measures the distortion not only within a distortion type at different distortion levels, but also across different distortion types.

提出了超复数奇异值分解检索法，超复数卷积滤波与超复数奇异值分解相结合的检索法以及超复数矩阵相关检索法等三种超复数彩色图像检索方法，在对提出的三种算法进行比较的同时也将其与传统图像检索方法进行了比较，结果证明，超复数彩色图像检索法能较好地克服传统图像检索方法存在的问题，且检索结果更优；同时，本文提出了基于超复数奇异值分解的彩色图像质量客观评估法，这种全新的图形化与数值化相结合的方法不仅能够准确评估出彩色图像的不同失真等级，还能够区分不同的失真类型，从真正意义上实现了彩色图像的质量评估。

The method transfers the observed data from space domain to 2-D space-time domain by exploiting the cross-correlation of the array outputs,and a large amount of virtual elements are generated through space-time processing.Therefore the constraint over the array configuration and the element identity can be significantly weakened,which means the matching subarray is no longer needed and the advantage of the traditional DOA matrix method,such as automatical parameter alignment and no need of 2-D search,is still available.

该方法在保持原DOA矩阵方法无需二维谱峰搜索和参数配对等优点的基础上，利用阵元输出之间的互相关关系将空域的阵列观测数据变换到时空域，通过空时二维处理在时空域中衍生出大量虚拟阵元，从而大大减弱了传统方法中对阵列结构、排布方式和阵元一致性的约束，不需要匹配子阵，无冗余阵元与孔径损失，并适用于阵元排列不规则的阵列。

Both the matrix of correlation coefficients and the pedigree of factor clusters show that some factors are correlated closely to each other;while others are relatively independent.

相关系数矩阵和聚类谱系图两者都表明有些因素之间的相关性很大，有些即相对独立。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。