查询词典 score

Consequently, this essay choose the "Z-Score Model", which was developed by Altaian, the famous American expert in risks management, to analyze and evaluate the listed companies' credit risks in China and to verify its efficiency to Chinese stocks market. The " Z-Score Model" is an innovation in the evaluation of companies' credit risk in the United States' banks, which is now being used widely. If the model is also applicable in Chinese stocks market, it will be significant in both theories and practices.

因此，本文选用作为美国商业银行信用评估方法的一次重要创新的，目前仍被美国商业银行广泛使用的，由美国著名信用风险管理专家Altman建立的"Z评分模型"(Z-Score Model)来对我国上市公司的信用风险状况进行实证研究，验证其在我国股票市场的有效性程度，如果能证明"Z评分模型"同样适用于我国证券市场，并将其改造为更适合我国上市公司的信用风险分析模型，将不仅具有很大的理论价值，而且也具有十分重要的现实意义。

Describes general methods of hypothesis testing and optimality properties of tests: Neyman-Pearson theory, likelihood ratio tests, score and Wald tests, uniformly and locally most powerful tests, asymptotic relative efficiency of tests.

假设检验和经验的最有性质： Neyman-Pearson 理论，似然比率估计，score 和 Wald 经验，一致最大功效检验，局部最大功效检验，检验的渐进相对有效性。

For discrete random effect model, the testing of variance component is studied and the score test statistics are obtained.

在离散型情形，用随机效应法研究了该模型的方差成分检验，得到了检验的Score统计量。

The score test statistics for outlier tests are derived and a series of simple counting formulas for diagnostic statistics are obtained.

第二，研究了异常点的Score检验统计量，得到了一系列诊断统计量的简洁计算公式。

For separable and continous exponential family models (such as normal, gamma, and inverse Gaussian models), this paper discusses the tests for departures from nominal dispersion in the framework of longitudinal nonlinear models with varying dispersion and/or random effects. The score test statistics are constructed and their asymptotic distributions and local powers are derived.

本文针对可分的连续型指数族回归模型（如正态模型，Γ模型，逆高斯模型），讨论广义非线性纵向数据模型中偏离名义离差的检验问题，得到了检验的score统计量，并推导了它们的渐近分布和局部近似功效。

In this paper we discuss the tests for homogeneity of variances and correlation coefficients in longitudinal data model with exponential correlation covariance structure and obtain several score test statistics. The glucose data is used to illustrate our results.

本文针对具有指数相关协方差结构的纵向数据模型，研究了方差齐性和相关系数齐性的检验，得到了检验的score统计量，并对葡萄糖数据进行了分析。

Semiparametric generalized linear model; smoothing spline; GCV; CV; statistical diagnostics; Cook distance; local influence; influence matrices; Laplace expansion; Score test statistics; variance component testing; dispersion parameter; random effects; longitudinal data.

基础科学，数学，概率论、数理统计半参数广义线性模型；光滑样条； GCV法； CV法；统计诊断；广义Cook距离；局部影响；影响矩阵； Laplace展开； Score检验统计量；方差成分检验；离差参数；随机效应；纵向数据

The difference between codon choice randomization in the region of protein regular secondary structure and that in coil region is investigated in detail. We find that the folding free energy of mRNA segments in different protein secondary structures is significantly different. The average Z score is -1. 38 and -1. 71 for regular secondary structure, but -0.93 and -1. 03 for coil.

我们仔细分析了在蛋白质规则结构区域（alpha螺旋和beta折叠）和无规则结构区域密码子随机选择的差异，发现处于不同蛋白质二级结构的mRNA片段的折叠自由能有显著的不同，对于规则结构，Human和E.coli的平均Z-score值分别为-1.71和-1.38，但是无规则结构的Z-score值分别为-1.03和-0.93。

To study local influence of the data cases on the Score statistic for the test of varying dispersion in the nonlinear model of simplex distribution, this paper develops the local influence on the score test statistic under perturbation in the response variable and explanatory variables based on gradient method.

为了研究数据对于单形分布非线性模型变离差检验的Score统计量的局部影响，该文利用梯度方法分别研究了因变量及自变量的微小扰动对于该模型的Score检验统计量的局部影响，相应得到了度量最大局部影响的诊断统计量。

Compared to previous approaches on the same MEDLINE abstracts, the presented resolution was promising for its 92% F-Score in pronominal anaphora and 78% F-Score in sortal anaphora.

与其它方法在相同语料做比较，所提的方法处理指代词指代现象可达到92% F-Scorec和名词指代现象可达到78% F-Score。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。