基于.NET在线测试系统设计与实现

系统采用.NET技术结合SQL数据库系统实现在线测试系统的全过程,重点讲述了系统设计及其解决方案。     

考试系统中的自动组卷算法分析与研究

考试是教学过程中不可缺少的重要环节,它可以检测教学效果和学生对课程的掌握情况,为教学改进提供依据。作为计算机辅助教学的一部分,计算机考试系统的客观性、公正性、全面性正受到人们越来越多的关注。文章主要分析并研究了计算机考试系统中的自动组卷算法。     

分类回归树在高校计算机联考数据分析中的应用

分析了分类回归树的基本结构及树的构建方法,并将其应用到高校计算机联考的数据分析中。结果表明,该方法能够较好的对数据进行分类,所生成的分类规则有助于今后教学和学生工作的开展。     

无线传感器网络测试系统数据融合研究

根据无线传感器网络在军事领域中研究与应用,对无线传感器网络用于军事装备测试成为新的应用方向.针对无线传感器网络在军事装备测试系统中数据冗余大、关联性强、实时性要求高等问题,为提高传输率与数据精度,提出了基于核偏最小二乘法的无线传感器网络数据融合算法.利用核偏最小二乘法对数据进行回归建模并进行仿真,实现数据快速融合.仿真结果表明,方法的可行性和有效性.     

基于遗传-蚁群混合算法的软件测试数据自动生成方法

自动化测试可以有效地提高软件测试效率,降低软件开发成本。测试数据自动生成是自动化测试过程中一个非常重要的环节。以路径覆盖为准则,本文提出一种利用遗传-蚁群混合算法来对程序输入域进行搜索的方法,进而生成满足需要的测试数据。经过实验验证,该算法可以有效地生成满足覆盖准则并且分布多样的测试数据。     

数据驱动技术在WRSAFS中的研究与应用

本文以自动化测试过程中应用数据驱动时遇到的问题为切入点,提出了一种更为先进的数据驱动技术并与自动化测试框架WRSAFS(Win Runner Software Automation Framework Support)相结合,重点分析了数据驱动技术在WRSAFS中的应用及相互关系。借助实际被测试软件,应用此技术设计测试用例并取得了很好的效果。     

Xilinx XC4000系列FPGA自动测试平台搭建

随着FPGA的发展,FPGA测试技术也得到了相应的发展。因为FPGA的结构和传统专用集成电路(ASIC)有着本质的区别,在FPGA中不能形成可测性设计电路,但它的可编程能力决定了其测试电路可以通过编程的方法来实现。本文讨论了Xilinx XC4000系列FPGA中CLB资源和互连资源的自动测试方法。而且提出了一种新的测试资源坐标定位方法,使得由软件仿真向器件真实测试取得了突破。并搭建了硬件测试平台。     

An extension of likelihood-ratio-test for testing linear hypotheses in the baseline-category logit model

A new family of test statistics for testing linear hypotheses in baseline-category logit models is introduced and its asymptotic distribution is obtained. The new family is a natural extension of the classical likelihood ratio test. A simulation study is carried out to find new test statistics that offer an attractive alternative to the classical likelihood ratio test in terms of both exact size and exact power.     

Fourier methods for testing multivariate independence

Recently a power study of some popular tests for bivariate independence based on ranks has been conducted. An alternative class of tests appropriate for testing not only bivariate, but also multivariate independence is developed, and their small-sample performance is studied. The test statistics employ the familiar equation between the joint characteristic function and the product of component characteristic functions, and may be written in a closed form convenient for computer implementation. Simulations on a distribution-free version of the new test statistic show that the proposed method compares well to standard methods of testing independence via the empirical distribution function. The methods are applied to multivariate observations incorporating data from several major stock-market indices. Issues pertaining to the theoretical properties of the new test are also addressed.     

Computer-based testing: An alternative for the assessment of Turkish undergraduate students

Virtually errorless high speed data processing feature has made computers popular assessment tools in education. An important concern in developing countries considering integrating computers as an educational assessment tool before making substantial investment is the effects of computer-based testing on students’ test scores as compared to paper-and-pencil tests. This study investigated whether test scores of Turkish students were different in the computer-based test and in the paper-and-pencil test, with forty-seven undergraduate students studying at a public university located in the Blacksea region of Turkey. Findings of this study showed that test scores of undergraduate students were not different in the computer-based test and in the paper-and-pencil test which led us to reach the conclusion that computer-based testing can be considered as a promising alternative technique for the undergraduate students in Turkey.