基于遗传算法的职业技能在线考试系统探究

The Research of the Online Examination System of Vocational Skills Based on Genetic Algorithm

组卷算法是在线考试系统的核心也是难点,对职业技能理论部分纸质考试的充分调研,明确了系统功能设计模块,基于对试卷评价指标的研究,系统使用遗传算法模拟自然因子通过自然选择机制,建立适应度函数,遗传算法因子的改进,终止条件的设定,自动组成满足总分、题量相同等基本约束条件,同时要求难度控制在一定范围的试卷,从而大大减轻了教师工作量,使教学质量的考察更规范和科学。

Test paper generation algorithm is the core and difficulty of online examination system.The paper examination of vocational skills theory is fully investigated,and the system function design module is defined.Based on the research of test paper evaluation index,the system uses genetic algorithm to simulate natural factors through natural selection mechanism,establish fitness function,improvement of genetic algorithm factors,the setting of the termination conditions,automatically constitute basic constraints to meet the total score and the same amount of questions,and at the same time,the difficulty control in a certain range of papers,thus greatly reducing the workload of teachers,making the investigation of teaching quality more standardized and scientific.