范德瓦尔斯方程的统计解释

本文用统计的方法导出范德瓦尔斯方程及修正值的具体表达式,并讨论修正量与状态量的关系,给出刚性球分子对气体体积、压强所造成的影响.     

Modelling two way contingency tables with recursive logits and odds ratios

In this work a new type of logits and odds ratios, which includes as special cases the continuation and the reverse-continuation logits and odds ratios, are defined. We prove that these logits and odds ratios define a parameterization of the joint probabilities of a two way contingency table. The problem of testing equality and inequality constraints on these logits and odds ratios is examined with particular regard to two new hypotheses of monotone dependence. Work partially supported by a MIUR2004 grant. Preliminary findings have been presented at SIS (Società Italiana di Statistica) Annual Meeting, Torino, 2006.     

中国区域经济差异源于FDI？——析二次统计误差的形成

 摘　　要:本文比较分析了两项关于FDI与中国区域经济发展差异的研究成果，通过分析这两项成果间迥异的研究结论和相应的近乎对立的政策主张，剖析了实证研究中可能形成的二次统计误差，提请人们从变量选择、模型方法、数据运用等各个方面，全面关注实证研究的客观性和科学性。     

The robust economic statistical design of the Hotelling's T2 chart

ABSTRACT

Economic statistical designs aim at minimizing the cost of process monitoring when a specific scenario or a set of estimated process and cost parameters is given. But, in practice the process may be affected by more than one scenario which may lead to severe cost penalties if the wrong design is used. Here, we investigate the robust economic statistical design (RESD) of the T² chart in an attempt to reduce these cost penalties when there are multiple scenarios. Our method is to employ the genetic algorithm (GA) optimization method to minimize the total expected monitoring cost across all distinct scenarios. We illustrate the effectiveness of the method using two numerical examples. Simulation studies indicate that robust economic statistical designs should be encouraged in practice.     

A survey of statistical methods on remote sensing in russian literature from 1976 to 1985

In this article we review the major areas of remote sensing in the Russian literature for the period 1976 to 1985 that use statistical methods to analyze the observed data. For each of the areas, the problems that have been studied and the statistical techniques that have been used are briefly described     

Biased Bootstrap Methods for Reducing the Effects of Contamination

Contamination of a sampled distribution, for example by a heavy-tailed distribution, can degrade the performance of a statistical estimator. We suggest a general approach to alleviating this problem, using a version of the weighted bootstrap. The idea is to 'tilt' away from the contaminated distribution by a given (but arbitrary) amount, in a direction that minimizes a measure of the new distribution's dispersion. This theoretical proposal has a simple empirical version, which results in each data value being assigned a weight according to an assessment of its influence on dispersion. Importantly, distance can be measured directly in terms of the likely level of contamination, without reference to an empirical measure of scale. This makes the procedure particularly attractive for use in multivariate problems. It has several forms, depending on the definitions taken for dispersion and for distance between distributions. Examples of dispersion measures include variance and generalizations based on high order moments. Practicable measures of the distance between distributions may be based on power divergence, which includes Hellinger and Kullback–Leibler distances. The resulting location estimator has a smooth, redescending influence curve and appears to avoid computational difficulties that are typically associated with redescending estimators. Its breakdown point can be located at any desired value ε∈ (0, ½) simply by 'trimming' to a known distance (depending only on ε and the choice of distance measure) from the empirical distribution. The estimator has an affine equivariant multivariate form. Further, the general method is applicable to a range of statistical problems, including regression.     

关于证券投资技术分析有效性的实证研究

证券投资技术分析是目前在我国沪深股票市场广为流传，且具重大影响力的投资工具，本文运用统计分析理论对其有效性进行实证分析，得到了一些有益的启示。     

Taub-NUT黑洞的统计熵

避开求解波动方程的困难,利用量子统计的方法,直接计算轴对称Taub-NUT黑洞背景下玻色场和费米场的配分函数.然后利用改进的砖墙方法——膜模型,计算黑洞背景下的玻色场和费米场的熵.计算表明,黑洞的熵与视界面积成正比的结论只有在薄膜的厚度远小于截断因子或两者为同阶无穷小时成立,当无穷小薄膜的厚度远大于无穷小截断因子时,黑洞的熵有一个对数发散项,黑洞熵不再与视界面积成正比.     

居民生活质量的统计分析与综合评价

选择15个指标作为评价居民生活质量的指标体系。利用2004年31个省市的截面数据进行因子分析。依据因子分析结果的特点,计算31个省市居民生活质量的5个因子得分和综合得分。依据综合得分高低对31个省市居民生活质量进行排序与综合评价。     

经济学实证分析的统计特征

从实证分析角度，探讨作为一门基本方法论学科的统计学对经济学的影响和渗透。论述了经济实证分析的若干领域，运用统计分析技术的内涵和特征；表明了在社会经济复杂现象的各个方面，统计分析手段大有用武之地并将显示极强的生命力。