| With the development of computer science and information technology, especially promoted by CERNET of the State Education Committee of China, major Chinese universities have started campus internet which is already connected with international internet. The popularity of internet, digital and standardized examination has made possible the adoption of internet examination system in all kinds of examinations. Recently this system has become one of the focuses of the study and application of the net.At present, many examination systems introduce C/S, which is available for the examination of a certain course and has singular question-selecting strategy. Adopting the current mostly accepted B/S exploring model, this thesis developed a platform capable of the multi-disciplinary examinations under the ASP.NET and SQL Server. The system adopts mobile combination, which can form examination papers randomly and evaluate students' proficiency and teaching quality.The essential of the computerize intelligent paper forming is to manage a optimization test paper that satisfies the parameters which the user inputs,so that the paper forming problem is a classical Constraint Satisfaction Problem(CSP).The genetic Algorithm(GA)is a new kind of whole optimization algorithm,and it uses the biologic genetics'point of view to raise the individual's adaptability by the natural selection,heredity,mutation.And it is in favor of solving the CSP for its whole searching,random city,well coding method and high parallel,so the system adopted the Genetic Algorithm to manage the paper forming problem.According to the modern teaching concept,combining the modern teaching theory with advanced internet technology.In this dissertation,I converted part of the restricting condition of paper forming to objective function,and I adopted binary coding.In the genetic operation,to ensure the new afterworld still satisfies the constraint,I adopt one point crossover,which the whole type of questions exchanges, and the two point's mutation to implement. Throughout GA and improvement upon the traditional GA,Composition papers strategy can be realized well.With this system, not only can the client organize the exam conveniently, but also can combining papers, the computer reasonably checking papers automatically and managing the grading safely be achieved. |
