异方差的游程检验

异方差现有常规检验方法的大多是参数检验的方法,需要参数服从一定的分布.但实际研究中往往有很多参数不服从假设的分布,针对这一以往方法的缺陷,提出了异方差的游程检验方法.该方法能克服参数检验需要参数分布的缺陷,而且也能用于小样本.先对游程检验做了简单的概述,介绍了游程检验的基本原理,然后就叙述了游程检验对异方差检验的应用.     

基于SPSS体育统计实验教学中非参数检验的几个问题探讨

为满足体育统计学科发展需求,本研究在进行"体育统计与SPSS"实验课教学的基础上,针对多配对样本非参数检验中不易判断的几个问题进行探讨,以帮助学生更好的区分不同方法的应用范畴。通过分析和示例结果,可以得出如下结论:非参数检验不受总体参数的制约,更多的反映质的变化;在对重复测量结果进行差异分析时,通常考虑非参数检验的一些方法;肯德尔和谐系数检验法一般用于三种以上方法之间评估结果的一致性检验,加强了体育评估的科学性和合理性。     

双参数指数分布位置参数变点的假设检验

关于双参数指数分布位置参数只有一个变点的假设检验问题分别给出了非参数检验和一个Ｄ－检验．对其中四个非参数检验，给出其渐近临界值，并讨论了它们的势；关于Ｄ－检验，给出了渐近临界值的一种计算方法     

双参数指数分布位置参数只有一个变点的假设检验

对尺度参数已知时,双参数指数分布位置参数只有一个变点的假设检验问题分别给出了４个非参数检验和一个Ｔ－检验。对以上４个非参数检验,给出了其渐近临界值,并讨论了它们的优劣。对Ｔ－检验,给出了其渐近临界值的一种计算方法。     

部分线性面板数据模型中个体效应的Bootstrap Hausman检验

对于面板数据模型而言,为了提高估计和预报的精度,区分个体固定效应和个体随机效应非常重要。 针对部分线性面板数据模型,在小样本下采用参数 Hausman 检验方法来识别模型中的个体效应,并通过 Bootstrap 抽样方法求得统计量的上分位点进而构造假设检验的拒绝域。 模拟结果显示,此检验的稳健性和可靠性比现有的非参数检验高,且在计算量和计算时间上有较大优势。     

均值已知时，正态分布方差变点的假设检验

讨论了均值已知时，正态分布方差变点的假设检验问题，分别导出了变点的参数检验和非参数检验，给出了一个Bayes检验，而且还给出了这些检验的渐近临界值，并对它们进行了比较。     

新产品感官测试的统计分析

产品感官检验测试结果通常是计数资料或等级资料，这些检验结果用参数统计方法往往很难，甚至无法处理。非参数检验的Ridit检验法和wilcoxon秩和检验法能有效地进行感官检测的统计分析。通过新产品检测实例对感官检测结果的统计方法加以探讨。     

厚尾序列均值变点的非参数检验

目的 考虑稳定系数为κ的厚尾分布的均值变点检验问题.方法 利用非参数检验方法.结果 基于Wilcoxon秩和统计量,构造出了相应的检验统计量.结论 得到了原假设下统计量的渐近分布,并证明了在备择假设下统计量的相合性.     

核函数选择方法研究

核函数的选择对支持向量机的分类结果有着重要的影响,为了提高核函数选择的客观性,提出了一种以错分实例到支持向量所在界面的距离来表示错分程度,并基于此进行秩和检验的核函数选择方法.通过与K-折交叉验证、配对t测试等参数检验的统计方法进行对比分析,对9种常用核函数的分类能力在15个数据集进行了定量研究.与参数检验方法不同,秩和检验并未假定数据的分布情况(很多情况下数据并不满足假定的分布),而且数据实验证明,秩和检验不但能够对核函数的分类能力进行客观评估,而且在某些数据集上还能产生更好的核函数选择效果.     

多重结果比较中的一个稳健检验

在生物学研究中,为比较两组研究对象的多重结果,在假设总体分布为正态分布的情况下,参数方法如多元的方差分析方法及Bonferroni方法广为应用.然而在多数情况下总体为正态分布的假设并不成立,因而人们自然地提出了更为稳健的非参数检验统计量,如O'Brien检验统计量,Huang检验统计量,MAX及SAR检验统计量等.本文旨在提出一个更为稳健的检验统计量.     

Markedness and its Interpretation in Language Use

Language markedness is a common phenomenon in languages, and is reflected from hearing, vision and sense, i.e. the variation in the three aspects such as phonology, morphology and semantics. This paper focuses on the interpretation of markedness in language use following the three perspectives, i.e. pragmatic interpretation, psychological interpretation and cognitive interpretation, with an aim to define the function of markedness.     

Characterization of Ordovician carbonate reservoirs, southeastern Saskatchewan, Canada

The discovery of the prolific Ordovician Red River reservoirs in 1995 in southeastern Saskatchewan was the catalyst for extensive exploration activity which resulted in the discovery of more than 15 new Red River pools. The best yields of Red River production to date have been from dolomite reservoirs. Understanding the processes of dolomitization is, therefore, crucial for the prediction of the connectivity, spatial distribution and heterogeneity of dolomite reservoirs.The Red River reservoirs in the Midale area consist of 3～4 thin dolomitized zones, with a total thickness of about 20 m, which occur at the top of the Yeoman Formation. Two types of replacement dolomite were recognized in the Red River reservoir: dolomitized burrow infills and dolomitized host matrix. The spatial distribution of dolomite suggests that burrowing organisms played an important role in facilitating the fluid flow in the backfilled sediments. This resulted in penecontemporaneous dolomitization of burrow infills by normal seawater. The dolomite in the host matrix is interpreted as having occurred at shallow burial by evaporitic seawater during precipitation of Lake Almar anhydrite that immediately overlies the Yeoman Formation. However, the low δ18O values of dolomited burrow infills (-5.9‰～ -7.8‰, PDB) and matrix dolomites (-6.6‰～ -8.1‰, avg. -7.4‰ PDB) compared to the estimated values for the late Ordovician marine dolomite could be attributed to modification and alteration of dolomite at higher temperatures during deeper burial, which could also be responsible for its 87Sr/86Sr ratios (0.7084～0.7088) that are higher than suggested for the late Ordovician seawaters (0.7078～0.7080). The trace amounts of saddle dolomite cement in the Red River carbonates are probably related to "cannibalization" of earlier replacement dolomite during the chemical compaction.     

Features of Women's language

Language is a means of verbal communication. People use language to communicate with each other. In the society, no two speakers are exactly alike in the way of speaking. Some differences are due to age, gender, statue and personality. Above all, gender is one of the obvious reasons. The writer of this paper tries to describe the features of women＇s language from these perspectives： pronunciation, intonation, diction, subjects, grammar and discourse. From the discussion of the features of women＇s language, more attention should be paid to language use in social context. What＇s more, the linguistic phenomena in a speaking community can be understood more thoroughly.     

A computer generator for randomly layered structures

AcomputergeneratorforrandomlylayeredstructuresYUJia shun1,2,HEZhen hua2(1.TheInstituteofGeologicalandNuclearSciences,NewZealand;2.StateKeyLaboratoryofOilandGasReservoirGeologyandExploitation,ChengduUniversityofTechnology,China)Abstract:Analgorithmisintrod…     

低渗透非均质砂岩油藏启动压力梯度研究

理论推导与室内实验相结合,建立了低渗透非均质砂岩油藏启动压力梯度确定方法。首先借助油藏流场与电场相似的原理,推导了非均质砂岩油藏启动压力梯度计算公式。其次基于稳定流实验方法,建立了非均质砂岩油藏启动压力梯度测试方法。结果表明:低渗透非均质砂岩油藏的启动压力梯度确定遵循两个等效原则。平面非均质油藏的启动压力梯度等于各级渗透率段的启动压力梯度关于长度的加权平均;纵向非均质油藏的启动压力梯度等于各渗透率层的启动压力梯度关于渗透率与渗流面积乘积的加权平均。研究成果可用于有效指导低渗透非均质砂岩油藏的合理井距确定,促进该类油藏的高效开发。     

On Tragic Consciousness In The Works By Ernest Hemingway

As an American modern novelist who were famous in the literary world, Hemingway was not a person who always followed the trend but a sharp observer. At the same time, he was a tragedy maestro, he paid great attention on existence, fate and end-result. The dramatis personae's tragedy of his works was an extreme limit by all means tragedy on the meaning of fearless challenge that failed. The beauty of tragedy was not produced on the destruction of life, but now this kind of value was in the impact activity. They performed for the reader about the tragedy on challenging for the limit and the death.     

海南岛地体及其毗邻陆缘晚中生代—新生代古地磁研究和构造演化

本文叙述了对海南岛及其毗邻大陆边缘白垩纪到第四纪地层岩石进行古地磁研究的全部工作过程。通过分析岩石中剩余磁矢量的磁偏角及磁倾角的变化,提出海南岛白垩纪以来经历的构造演化模式如下:早期伴随顺时针旋转而向南迁移,后期伴随逆时针转动并向北运移。联系该地区及邻区的地质、地球物理资料,对海南岛上述的构造地体运动提出以下认识:北部湾内早期有一拉张作用,主要是该作用使湾内地壳显著伸长减薄,形成北部湾盆地。从而导致了海南岛的早期构造运动,而海南岛后期的构造运动则主要是受南海海底扩张的影响。海南地体运动规律的阐明对于了解北部湾油气盆地的形成演化有重要的理论和实际意义。     

An Index mechanism for multi-scale view in spatial databases

There are numerous geometric objects stored in the spatial databases. An importance function in a spatial database is that users can browse the geometric objects as a map efficiently. Thus the spatial database should display the geometric objects users concern about swiftly onto the display window. This process includes two operations:retrieve data from database and then draw them onto screen. Accordingly, to improve the efficiency, we should try to reduce time of both retrieving object and displaying them. The former can be achieved with the aid of spatial index such as R-tree, the latter require to simplify the objects. Simplification means that objects are shown with sufficient but not with unnecessary detail which depend on the scale of browse. So the major problem is how to retrieve data at different detail level efficiently. This paper introduces the implementation of a multi-scale index in the spatial database SISP (Spatial Information Shared Platform) which is generalized from R-tree. The difference between the generalization and the R-tree lies on two facets: One is that every node and geometric object in the generalization is assigned with a importance value which denote the importance of them, and every vertex in the objects are assigned with a importance value,too. The importance value can be use to decide which data should be retrieve from disk in a query. The other difference is that geometric objects in the generalization are divided into one or more sub-blocks, and vertexes are total ordered by their importance value. With the help of the generalized R-tree, one can easily retrieve data at different detail levels.Some experiments are performed on real-life data to evaluate the performance of solutions that separately use normal spatial index and multi-scale spatial index. The results show that the solution using multi-scale index in SISP is satisfying.     

Jane Eyre——A Feminist In The 19th Century

In the 19th century the society was controlled by men, and women were just appendants of them, they had not any rights and freedom. But Jane was an exception, she showed some characteristics of early feminist. Jane showed her characteristics of feminism in three aspects: rebellion, equality, and independence. These characteristics were helpful to her success, and feminism is the only way out for women of that time.     

《Chinese Science Bulletin》SUBJECT INDEX TO VOLUME 59(2014)

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