查询词典 multivariate analysis

The normal transformation polynomial is used by some researcher in practical probabilistic analysis in structural or civil engineering; especially when multivariate random variables with the probabilistic characteristics expressed using only statistical moments are involved.

本论文提出了两种样本点选取策略，即方向余弦策略和有限步长策略，对响应面法进行改良；本方法一次性拟合响应面方程，避免了常规响应面法的复杂迭代运算，且对高非线性问题有较好的适用性。

The application of statistical methods in operational forecasts, synoptic climatology , multivariate analysis, time series, orthogonal expansion, statistical dynamic prediction and nonlinear dynamics are covered.

内容涉及统计学方法在业务预报中的应用，天气气候学研究，多元分析，时间序列，正交展开，统计动力预报，非线性动力学等诸多方面。

A multivariate analysis of the postcranial skeleton of extant bovids reveals patterns of osteological features indicative of ecological adaptations for habitat use and body size.

对广义牛科动物颅后骨骼的多元变量分析揭示了牛科生境利用和体型之间的骨学特征。

Dr. Jungers, Chair of Anatomical Sciences at SBU School of Medicine, and Dr. Richmond, Associate Professor of Anthropology at GWU and a member of GWU's Center for the Advanced Study of Hominid Paleobiology, completed a multivariate analysis of the proximal femora shape of a young adult O. tugenensis that enabled them to pinpoint the pattern of bipedal gait for this controversial hominin.

石溪大学医学院解剖科学江格尔斯主任与乔治·华盛顿大学副教授兼该校原人古生物学高级研究中心会员里士满博士，已完成了对一青年图根原人的近端股骨形状做的多变量分析实验，这使他们能够精确的估算出这个充满争议人种的步态。

Since the concept of NA have a lot of applications in multivariate statistical analysis, reliability theory and percolation theory, various aspects of NA are significant and have been investigated by a host of scholars Fist, we give some Fuk-Nagaev type probability inequalities, moment inequalities of maximal partial sum for sequence of NA random variables, and some strong law of large numbers and complete convergence for sequence of NA random variables are obtained.

在本论文中我们对不要求强平稳或同分布的NA随机变量列进行了多方面的研究：首先对NA列建立了一组具有NA特点的关于最大部分和的Fuk-Nagaev型概率不等式及其关于某一类特定函数的矩不等式，它们在后续给出的极限定理的证明中发挥着重要作用；研究了具有不同分布的NA列的强收敛性，如对NA列建立了更一般条件下的Wittmann型强大数律及完全收敛性，同时也进一步改进了R。

Habitat structure, patchiness, and avian communities in North American steppe vegetation : a multivariate analysis.

陈意昌、孙明德、杨宏达、刘昌文，(2002)，农水路廊道对农地景观结构之探讨，农业工程研讨会论文集，pp.360370

This paper proposes an efficient clustering algorithm for Multivariate Time Series—PCA-CLUSTER.The algorithm applies principal component analysis to reduce the dimension of MTS,and subsequently chooses the principal component series of MTS to cluster by a K-nearest neighbor algorithm.

提出一种高效的多变量时间序列聚类算法PCA-CLUSTER，首先利用主成分分析对MTS数据降维；选取MTS数据的主成分序列进行K近邻聚类分析。

With 4 modes of returning land from farming to forestry in the area of returning land from farming to forestry and 5 factors of soil solution fertility in farming land in Hongya county of Sichuan province as examples, the synthesized evaluation was conducted on the grade of soil solution fertility by principal component analysis with multivariate statistics.

方法以四川洪雅退耕还林区4 种退耕还林模式和农耕地5个土壤溶液肥力因子为例，采用多元统计的主成分分析法对土壤溶液肥力等级进行综合评价。

We use the approximate distribution comes from probability generating function of CreditRisk+ to value the CDO under the single sector factor and multi-sector factors scenarios. For single sector factor model, we discuss the sensitive analysis of CDO fair spread by different default probability, default correlation and loss given default. For multi-sector factors model, we exam the CDO fair spread based on different sector correlation assumption, such as Gamma distribution in moment match method, multivariate Gamma distribution and compound Gamma distribution.

本文在信用风险加成模型之下，利用机率产生函数的近似分配评价抵押债务债券，并考虑单一部门因子与多个部门因子，单一部门因子中，在不同违约机率、违约相关系数和违约损失率下，探讨抵押债务债券公平价差之敏感度分析；多个部门因子中，在不同相关性部门因子分配假设下，如动差配适法的伽玛分配、多维伽玛分配、复合伽玛分配，探讨抵押债务债券公平价差之方法结果比较。

To solve the problem of calibration transfer in multivariate calibration of chemometrics,Procrustes analysis algorithm and piecewise direct standardization algorithm are applied.

采用普鲁克分析算法和分段直接校正算法，解决化学计量学多元校正中的模型传递问题。

Objective:To explore the feasibility of laparoscopy in diagnosing and treating of abdominal diseases.

目的：探讨腹腔镜用以诊断腹部外科疾病及选择治疗方案的可行性。

The lifetime of nylon 1010 and nylon 1010/POSS composites decreased with increasing temperature.

热重-红外联用分析表明尼龙1010在氮气气氛下的降解产物主要为小分子的低聚物，POSS并不改变尼龙1010降解产物的组成。