遗传算法在无纸化考试系统中实现随机抽题

随机抽题是无纸化考试系统要解决的一个重要问题。本文介绍了应用演化计算的三大分支之一的遗传算法实现随机抽题问题,详细阐述了遗传算法的主要思想、随机抽题问题的编码表示、适应性函数和遗传算子的设计、淘汰策略和停机准则的选择,并用Delphi给出关键模块的详细代码及其相关分析。

Genetic Algorithm Realizes Selecting Randomly Questions of No Paper Examination System

Selecting randomly questions is an important problem for no paper examination system to be solved. This paper introduces how to realize selecting randomly questions of no paper examination system using genetic algorithm which is one of three great branches of evolutionary computation, and the primary ideas of genetic algorithm, the encoding representation of selecting and only questions, the designs of the adaptability functions and the genetic arithmetic operators, the determinations of discarding criteria and stop criteria. Then, the detailed codes and the analyses of the key module are given.