查询词典 scatter

A DPLS discriminant analysis model was developed based on spectra region from 400 nm to 2 498 nm with mathematic pretreatment 2-8-6-1 and scatter correction treatment the standard normal variate. The accurate discriminant rate of calibration and external validation was 95.7% and 95.6% respectively. For the adulterated samples (MBM mass percentage≥5%), the accurate discriminant rate was 100%.

建立的判别分析模型：数学预处理方法为2-8-6-1，散射校正方法为变量标准化处理，光谱范围为全谱（408～ 2 492 nm），定标模型的正确判断率为95.7%，外部验证正确判断率为95.6%，对于掺入量≥5%MBM时，正确判断率为100%。

In order to improve the robustness and performance of calibration, several spectra preprocessing methods were employed, including standard normalized variate, multiplicative scatter correction and direct orthogonal signal correction.

为了有效消除土壤颗粒不均匀性所带来的散射影响，同时扣除与土壤品质参数无关的光谱信息，研究运用变量标准化、附加散射校正和直接正交信号校正等光谱预处理方法，使模型精度得到显著提高。

Different from the traditional approach of solving GDA by singular value decomposition,the new algorithm utilizes kernel modified Gram-Schmidt orthogonalization algorithm to extract the optimal transformation matrix directly,which can not only effectively hold the most discriminant information in the null space of within-class scatter matrix,but also make the solution more stable in numeric.

与传统用奇异值分解获取目标特征子空间的方式不同，新算法运用核修正格兰-施密特正交化过程直接提取最优投影变换矩阵，不仅有效地地保留了类内散度矩阵最具辨别力的零空间信息，同时使所求解在数值上更稳定。

First, by employing the DCT instead of the "pixel grouping" and redefining the within class scatter matrix, a new null space method is given.

首先，通过使用DCT代替"像素聚类"并重新定义类间散布矩阵，得到一种新的零空间法。

An improved algorithm based on former ones was proposed. It introduced mirror image to enlarge sample capacity and adopted the method of the null space of the within-class scatter matrix Sw to get the best solution of Fisher criterion.

为解决此问题，在已有算法的基础上，引入镜像图像来扩大样本容量，并采用零空间的方法求得Fisher准则函数的最优解。

Based on the intrinsic nullspace property of the SVM proven by the authors, which shows that the normal vector of the SVM decision plane is of the nullspace property in terms of the support vectors-based within-class scatter matrix, a support vectors-based method is presented to construct the Kernelized Decision Boundary Feature Matrix by using the SVM normal vectors.

进一步结合均值向量的差向量构建扩展决策边界特征矩阵。最后以支持向量为训练集合，结合零空间方法来计算投影空间，该投影空间被用来从原始图像中提取判别特征。

The uncorrelated optimal discriminant vectors are obtained by resolving the orthogonal vectors based on maximum scatter difference discriminant criterion in the uncorrelated projection space.

本文基于最大散度差准则，利用统计不相关投影空间，提出了一组具有统计不相关性的最佳鉴别矢量的计算方法。

Overwatch weapon scatter tuning adjusted - angle reduced, area reduced marginally.

英军皇家炮兵支援的观测炮击技能散射效果调整-减少散射角以略微减小落弹散步范围。

Magnetic record/playback heads, the angle between the parallel lines measuring gap scatter and the nominal direction of tape motion over the head assembly.

中，测量间隙变化的平行线与磁带在''。'磁头'。''组合件上运动的标定方向之间的夹角。

Popular multivariate visualization such as scatter plot matrix,parallel coordinates,star plot,Andrews plot have long history and widely application,but a united theoretical basis is absent up to now.

常用的多元数据可视化方法如散点图矩阵、平行坐标、雷达图、三角多项式图等具有悠久的历史和广泛的应用，但是长期以来缺乏统一的理论基础。

The dissecting of samples in group2 were difficult. The root of pulmonary artery and ascending aorta failed to be unfolded because fibrous tissue was tough, right and left fibrous trigone were too firm to be solved by hand. Cardiac muscle fibers couldn't be stripped along myofibrillar trajectory since they were prone to break because of their friability.

组2的心脏解剖困难，表现为纤维组织坚韧，游离肺动脉非常困难；徒手无法松解左、右纤维三角，肺动脉和主动脉根部的游离非常困难；心肌纤维坚硬、质脆，解剖时容易断离成碎块，无法沿纤维走行方向剥离。

We have battled against the odds in a province that has become increasingly violent.

我们对在一个争夺日益激烈省的可能性。