查询词典 statistical data analysis

In this paper, problems of trend test in clinical experiment are studied mainly by the statistical inference method under order restriction. The ori- gins of order restricted statistical inference are usually dated back to the early 1950s. At about the same time, a number of researchers started working inde- pendently on similar problems. The field developed rapidly during the 1960s and early 1970s and formed the more perfect theory of estimation and test- ing.

中文题名临床试验中的趋势性检验副题名外文题名 Trend test in clinical experiment 论文作者马艳萍导师史宁中教授学科专业概率论与数理统计研究领域\研究方向学位级别博士学位授予单位吉林大学学位授予日期2002 论文页码总数97页关键词临床试验趋势性检验数理统计约束下统计推断馆藏号BSLW /2003 /R311 /1 本文主要利用序约束下的统计推断方法对临床试验中的趋势性检验问题进行了研究。

Linear opacities appeared in 14d group and 28d group,bullae and pneumothorax were mainly in 28d group,the difference of appearance of two signs above had statistical significance(P＜0.05).The difference of appearance of ground-glass attenuation and consolidation had no statistical significance in sub-groups.Nodules and subpleural interstitial thickening did not appear in 3d group.

线状影出现于14d组及28d组，肺大泡和气胸主要见于28d组，上述两个征象出现的差异具有统计学意义(P＜0.05)；磨玻璃影和实变在各组中出现的差异无统计学意义；结节影和胸膜下间质增厚在3d组均未出现；蜂窝肺1只及牵引性支气管扩张2只都出现于28d组。3。

Virial Equation of State and Molecular Corresponding States from Statistical Mechanics; Connection of PVTN Equations of State to Statistical Mechanics and Molecular Simulations

Virial状态方程与统计力学分子对应态；从PVTN状态方程到统计力学，与分子模拟的联系。

This stock maintenance system is aims at enterprise aspects and so on commodity information, stock information as well as statistical information works the development software, is a practical stock maintenance system, in view of enterprise's actual need, has analyzed the business management system function, and take the commodity information management, the stock information management as the key point, described the line of goods management, the commodity management, the storage management, the warehousing operation management, the warehousing commodity management, the warehouse inventorying management, the statistical management and the user manages eight modules, realized the warehousing management, the commodity number has reported to the police, the commodity counts functions and so on warehousing.

本库存维护系统是针对企业商品信息、库存信息以及统计信息等方面工作开发的软件，是一个实用的库存维护系统，针对企业的实际需要，分析了企业管理系统的功能，并以商品信息管理、库存信息管理为重点，描述了商品种类管理、商品管理、仓库管理、出入库操作管理、出入库商品管理、仓库盘点管理、统计管理和用户管理八个模块，实现了出入库管理、商品数目报警、商品统计出入库等功能。

Requiring the object subject to examination to provide the relevant original recordings and vouches, statistical ledgers, statistical investigation forms, accounting materials and other relevant certificates and materials

要求检查对象提供有关原始记录和凭证、统计台账、统计调查表、会计资料及其他相关证明和资料

An extended kalman filter adaptive algorithm is presented in combination with the extended kalman filter and the current statistical model. A root square unscented kalman filter adaptive algorithm is presented in combination with the root square unscented kalman filter and the current statistical model.

另外将经典的推广卡尔曼滤波与当前统计模型相结合，推导了推广卡尔曼滤波自适应跟踪算法；将基于采样策略的平方根无迹卡尔曼滤波与当前统计模型相结合，推导了平方根无迹卡尔曼滤波自适应跟踪算法。

As feature extraction acts an important role in pattern recognition system, we propose three novel feature extraction methods for HCCR: a、Two structural feature extraction methods, Stroke Cross Counting Features and Peripheral Features are studied. According to the characteristics of Chinese handwriting samples, we extend the SCCF and PF respectively to weighted elastic SCCF and weighted elastic PF. Experiments show that the modified feature extraction approaches are better than original approaches. b、A new statistical feature extraction method——Elastic Meshing Directional Decomposition Feature extraction is proposed. According to the stroke statistical properties of Chinese character, we first decompose a handwritten character pattern into four directional subpatterns. Then a set of elastic meshes are applied to each of the four subpatterns respectively to extract the pixel distribution features.

统计识别方法：利用统计模式识别的经典方法——Bayes分类方法来进行汉字识别的研究，特征提取是统计模式识别的关键，本文着重围绕手写体汉字的特征分析和提取方法进行了研究，提出了三种特征提取的新方法： a、两种改进的结构特征提取方法：在笔划密度特征和外围特征的基础上，结合手写体汉字的特点，提出了加权非均匀笔划密度特征、加权非均匀外围特征的特征提取新方案； b、一种新的统计特征提取方法——弹性网格方向分解特征，根据汉字方块字的特点及笔划分布的统计特征，对手写体汉字进行横竖撇捺四方向的分解，并利用一系列的弹性网格对汉字分解后各分量的象素进行统计而提取特征，实验证明该特征提取方法用来进行手写体汉字识别是十分可行和有效的。

Based on statistical damage theory, the instantaneous damage constitutive relationship of gypsum breccias is studied. In consideration of the impact of damage threshold, a statistical damage constitutional equation is established.

在以上试验的基础上，基于统计损伤理论研究了石膏角砾岩瞬时损伤应力应变本构关系，提出统计损伤应考虑损伤门槛的影响，建立了考虑损伤门槛的统计损伤本构方程，理论计算结果与常规试验结果比较接近。

According to the geometries of the conformers and the statistical weight parameters, we can construct six-state statistical weight matrices.

在此基础上，应用计算得到的模型分子的几何构型与统计权重参数，分别构建针对－CH2-和－CCl2-中心的聚偏二氯乙烯的6态旋转异构态模型。

He is a Fellow of the American Statistical Association and a member of the Inernational Statistical Institute.

他赢得杰出统计，1986年美国统计协会奖

Now he worked in ajoint venture.

现在他在一家合资企业工作。

More troops in Afghanistan won't change any of the foregoing.

更多的在阿富汗的军队也不会改变之前的状况。