Design And Implementation Of Preschool Teacher Qualification Online Examination System

With the development of computer technology and artificial intelligence technology,intelligent online examination system is more and more widely used in various fields. The computer based online examination can not only save a lot of manpower and material resources, but also greatly enhance the test flexibility, fairness and efficiency.Based on the analysis of the development status and research situation of online examination system and also combined with the actual situation of our school, we first present the purpose and content of this thesis. This thesis presents the demand analysis and the overall design and then to the preschool teacher qualification examination an online examination system, based on generating the corresponding mathematical model, and genetic algorithm is used to design and analyze algorithms, scientific organization structure design of online examination system the overall structure of the database and test library. Finally, the research work is summarized. The main work of this thesis is the topic of how to design an automatic test paper generation algorithm under some constraint condition, then extract an appropriate set of questions from the test library efficiently,scientific and effective enhance the function of intelligent online examination system.Based on the analysis of the research in domestic and foreign research literature, it is necessary to generate test paper problem relates to the online examination system. This paper focused on the study of genetic algorithm, and the optimized and improved, such as the chromosome using piecewise natural number coding method, fitness function and genetic operation etc.. This thesis then proposes the advantages of intelligent genetic algorithm search, natural number coding, fast convergence speed, avoiding the disadvantages of the traditional test paper generating algorithm in the long code, easy to fall into local optimal solution.Online examination system includes user management module, online examination module, test library management module, intelligent test paper module and performance management module. At present, the main function of this system have been tested. It can play an role in information technology of higher education.