查询词典 statistics

Research and teaching: panel data econometrics, non-parametric statistics and its applications in economics.

主要研究和教学领域：平行数据计量经济学、非参变量统计及其在经济学中的应用。

The use of mathematics and statistics to formulate and test economic theory is referred to as econometrics.

利用数学和统计学明确地表达一种经济理论，然后测验这种理论，这就是经济计量学。

The typical application of Edgeworth expansion is to approximate the true distributions of statistics.

但是，由于展开式中的系数非常的复杂难求，许多转而研究二阶的Edgeworth展开。

This paper study classical segmentation methods and put forward a kind of synthetic segmentation method based on fractal parameter, the secondary statistics eigenvector of gray value.

本文在经典分割方法的基础上，提出了基于灰度的二次统计特征量－分形参数的图像分割综合法。

Disney head Michael Eisner has said that his greatest dream is to enter the China market due to a statistics: China has 260 million children under age 15, and the United States population Xiangqu near.

迪斯尼掌门人艾斯纳曾说，他最大的梦想就是进军中国市场，原因在于一个统计数字：中国有2.6亿15岁以下的儿童，这和美国人口相去不远。

The core of this text is those three targets statistics tested-analysis researching about the intertemporal elasticity of substitution and the risk-averse coefficient.

这三个目标即本文对跨期替代弹性与风险回避系数进行统计实证研究的主要内容。

The aim of the paper is to improve the reliability of HF generator, which is the key to decide the life of HF electrodeless light. At first, I collect and analyze the relative dates, and statistics fault models.

首先进行了与可靠性相关的数据收集与分析，对故障模式进行统计；然后从电路结构、环境应力及容差三个方面进行可靠性分析，从而为关键的可靠性设计提供了依据；接下来的可靠性设计，从电路设计、热设计、降额使用、筛选四个方面逐一解决了可靠性分析阶段发现的问题；最后，我将改良的发生器批量生产，并从中重新收集了可靠性数据进行计算，事实证明改良后高频无极灯的平均寿命已达到6万小时。

To strengthen the inequality symbol with the training, 2. to expanse the applications of trigonometric functions to polar coordinates and Parameter equation, 3. to adjust Permutation and combinationwith Probability and Statistics, 4.to strengthen applications of Higher Geometry in the Elementary Geometry.

对此问题本文试着从中学数学教学的角度，在以下几个方面进行探讨：1 加强带符号的不等式的训练，2 扩充三角函数在参数方程和极坐标中的应用，3 排列组合与概率统计的调整，4 高等几何在初等几何中的应用。

Fisher's exact test and odds ratio with its 95% confidence interval were used to analyze the relationship of pulmonary artery to lesion with the possibility of malignancy. The degree of pulmonary arterial encasement in the benign lesion and malignancy was evaluated by Wilcoxon rank sum test. The agreement between 2 observers was evaluated by kappa statistics. In addition, the sensitivity and specificity profiles of the degree of encasement in diagnosis of malignancy were determined by plotting an empirical ROC curve.

肺部病灶及其邻近肺动脉之关系来预估恶性的可能的资料分析方法为费氏分析检定法(Fisher's exact test)，胜算比以及95%信赖区间；评估肺动脉被包埋压迫的程度用在预估恶性肿瘤之能力是使用威尔科克逊秩和检定；2位观察者间的同意度之检定是用Kappa 统计分析；除此之外，用肺动脉被包埋压迫的程度来预估恶性肿瘤之能力的敏感度以及特异性是用接受者操作特徵的曲线来评估。

A systematic introduction is given to a class of new high power goodness-of-fit test based on EDF (Empirical Distribution Function), which comes to be used in the last decade, and a study on the logistic structure and sample size modified method of this class of statistics is conducted.

系统介绍了近年来发展起来的一类以EDF统计量为基础的高效母体分布拟合优度检验方法，探讨了这类检验方法的逻辑结构和子样容量修正方式。

And discuss some key point of integrated management system design, include hazard identification and risk assessment and risk control in the occupational health and safety management, the measure of satisfaction target of customer, the flawlessness of law system, the integration of the integrated management system and enterprise standardization system, unify lead institution and work orgnization, integreted internal audit and integrated management review.

同时，论述了一体化管理体系构建中的几个主要问题，包括职业健康安全管理中的危险源辨识、风险评价和风险控制、顾客满意度的科学监测、法律、法规体系的完善、一体化管理体系与企业标准化体系的有机结合、统一的领导机构和工作机构、一体化的内部审核和管理评审。

Deepwater Taranaki is investigated for its petroleum potential, using all available seismic data tied to shallow-water wells.

运用与浅水井相关的现有全部震波探测数据考察了深海区塔拉纳基盆地的油藏前景。