测试图形生成的遗传算法研究

提出了一种用于组合电路测试图形生成的遗传算法。该算法把被测电路的测试生成问题转化为计算一种约束函数的最优解，可充分利用电路的结构信息。为故障节点生成测试时易于操作，且无需经过故障模拟，就可保证对所有可测的单固定型故障及多故障有较高的故障覆盖率。     

小波神经网络的构造及其算法的鲁棒性分析

研究了用于非线性函数逼近的小波神经网络的结构设计方法;证明了在存在噪声干扰及网络设计误差的情况下,网络训练过程具有指数收敛性和鲁棒平稳性。     

英语口语考试中的非言语交际因素

英语口语考试既涉及言语交际又涉及非言语交际，它在考试内容、考试方式、参与者在考试过程中的参 与方式等方面不同于笔试。非言语交际因素在口语考试中主要表现在体态动作、面部表情、服饰装扮、讲话者之 间的距离、副语言等方面。文章欲探讨非言语交际在口语考试中的作用，以期分析影响口语考试成功实施的非言 语交际因素以及探讨考官如何应用非言语交际因素有效地进行考试。     

Convergence of compensators of simple point processes

Processes are viewed as random variables with values in the space of càdlàg functions endowed with the J₁ topology. For a sequence of point processes with their minimal filtration, the convergence of their compensators is studied. It is shown that convergence in probability of the processes and of the corresponding conditional distributions of their jump times implies, with some additional hypothesis, the convergence in probability of the compensators. The result is then applied to convergence to a quasi-left-continuous point process with independent increments.     

对提高实验教学质量的思考

提高实验教学质量涉及到许多方面：实验教师队伍的建设、实验内容和手段的更新、实验成绩考核的科学规范等都是重要的因素。要充分调动学生实验的积极性和主观能动性，培养他们的创新意识，才能真正有效地提高实验教学质量。     

SMOOTH TESTS FOR THE BIVARIATE POISSON DISTRIBUTION

A theorem of Rayner & Best (1989) is generalised to permit the construction of smooth tests of goodness of fit without requiring a set of orthonormal functions on the hypothesised distribution. This result is used to construct smooth tests for the bivariate Poisson distribution. The test due to Crockett (1979) is similar to a smooth test that assesses the variance structure under the bivariate Poisson model; the test due to Loukas & Kemp (1986) is related to a smooth test that seeks to detect a particular linear relationship between the variances and covariance under the bivariate Poisson model. Using focused smooth tests may be more informative than using previously suggested tests. The distribution of the Loukas & Kemp (1986) statistic is not well approximated by the x²distribution for larger correlations, and a revised statistic is suggested.     

On the estimation of the proportion of positives in a sequence of screening experiments

A metaanalytic estimator of the proportion of positives in a sequence of screening experiments is proposed. The distribution-free estimator is based on the empirical distribution of P-values from individual experiments, which is uniform under the global null hypotheses of no positives in the sequence of experiments performed. Under certain regularity conditions, the proportion of positives corresponds to the derivative of this distribution under the alternative hypothesis of the existence of some positives. The statistical properties of the estimator are established, including its bias, variance, and rate of convergence to normality. Optimal estimators with minimum mean squared error are also developed under specific alternative hypotheses. The application of the proposed methods is illustrated using data from a sequence of screening experiments with chemicals to determine their carcinogenic potential.     

Efficient score tests for heteroskedasticity in micro-economics

This paper develops an artificial regression that can be employed to obtain efficient score test statistics for heteroskedasticity in the context of a variety of micro-econometric models     

计算机辅助正交试验设计

因素(析因)试验是一种常见的试验。当部分因素间交互作用可以忽略时,正交试验设计是一种快速、有效的方法。本文分析了L_tu(t~q)型正交表的特性,探索应用计算机编制正交表及其交互作用列表的方法,并在此基础上,设计了功能齐全的通用软件。计算机辅助试验将帮助那些不熟悉试验设计理论的工程技术人员合理地安排试验。