查询词典 multivariate

In feature-level case, fully polarization information from SAR is used to combine with spectral characteristic from SPOT images, mainly to enhance land cover classification as well. Speckle noise was removed by Lee filter, followed by the maximum likelihood classifier based on different distribution was used for SAR and SPOT images (Based on Wishart distribution and multivariate Gaussian distribution respectively), to extract the conditional probability of each pixel for each class.

首先使用李式滤波器滤除全偏极雷达资料杂讯，接下来同样是使用採用最大似然法来分类融合影像，(不同的在於全偏极雷达影像使用Wishart机率分布，在光学影像採用multivariateGaussian机率分布)將每个类别中每个像元属於某个类别的机率值计算出来，再利用Dempster-Shafer evidence theory来结合这些类别的机率值。

Methods: Between April and November, 2004, we carried out a cross-sectional study that administerd a self-assessed health questionnaire survey to the parents of 1,117 children from 14 elementary and junior high schools with high tension power lines hovering over the campuses. The control group was consisted of 2,204 children from 18 control schools. Multivariate multinominal logistic regression model was used to calculate the age and socioeconomic indicators adjusted odds ratios and the corresponding confidence intervals of clinical visits and health conditions within a one- month period prior to questionnaire survey in relation to the putatively hazardous exposure to magnetic fields.

本研究利用横断性研究设计，在2004年4月至11月期间，针对台北县市14所校园上空有高压输电线跨越之国民中小学学童1，117名以及18所校园上空无高压输电线跨越之国民中小学学童2，204名的家长进行过去一个月以来，对学童健康情形之自我评量问卷；并利用多变量多名义逻辑斯迥归模式调整年龄与社经指标后，计算胜算比及其相对应之信赖区间，用以估计暴露组学童过去一个月内生病与就医症状的相对危险性。

We used multivariate logistic regression techniques to determine predictors of arteriopathy and FCA among those subjects who received vascular imaging.

所有这些研究对象都接受血管造影，我们应用多因素logistic回归分析得出动脉病变和FCA的预测因素。

Tables 4 and 5 show the bivariate and multivariate models forprediction of high-frequency hearing loss.

表4和5显示二元和多维分布的模型为高频率听力丧失的预言。

Prevalence rates were calculated and bivariate and multivariate comparisons adjusted for age, sex and education were performed.

对发病率进行计算，并对年龄、性别和教育校正后进行二元和多元对比。

Although there exist many ways about constructing bivariate copulas, few of them can extend to multivariate.

尽管已有不少二元copula的构造方法，但是这些方法均难以扩展到多元的情形。

New topics, such as methods for clinical diagnostic testing, and univariate, bivariate, and multivariate techniques for survival analysis will also be covered.

新的主题，像是临床诊断测试的方法，和存活分析的单变量、双变量和多变量的技术也将会涵盖在其中。

New multiscale methods can give better performance in approximating multivariate function in high-dimension space than wavelet analysis.6. A method for texture classification is presented based on Brushlet and dyadic wavelet.

该方法从矩特征和方向信息特征出发，结合Brushlet变换的方向检测特性和二进小波变换的边缘检测特性，最后利用支撑矢量机对纹理图像进行分类。

Results 155 patients had surgical site infections in total 1 589 patients undergoing general surgery and the infection rate was 9.75%. The infection rates were hightest in those undergoing celiotomy or colon surgery. 56 patients appeared with postdischarge surgical site infection, accounting for 36.13% in the whole infection public. Most postdischarge surgical site infection happened in class Ⅰ and class Ⅱ surgery. Albumin and hemoglobin abnormity, emergency surgery, bleeding, incision type and eduction were risk factors of surgical site infection by multivariate Logistic regression analysis.

结果 1 589例次手术患者中，155例次手术部位发生感染，感染率为9.75%；不同手术类别相同危险指数的手术以剖腹探查手术和结肠手术感染发生最高；有56例患者在出院后发生手术部位感染，随访感染占总感染例数的36.13%，随访感染以Ⅰ、Ⅱ类手术为主；经单因素及多因素Logistic回归分析得出，白蛋白及血红蛋白值异常、急诊手术、失血、切口类型、引流为手术部位感染的危险因素。

The RSW process with high nonlinear and coupling effect of multivariate is influenced by a number of random and chancy factors.

绿色环保材料铝合金由于其本身所具有的优点，深受汽车制造、航空航天等领域的青睐。

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。