Research And Implementation Of Intelligent Item Bank System

With the development of information technology and the deepening of the reform in education,"intelligent test paper system" which uses computer to manage test paper database and test paper generation is getting more and more concern in education field. It changes traditional method of generating test paper, makes subjective factors to generate test paper reduce, helps to separate the testing and the teaching, and improves the teaching quality.The general framework of test paper system, the organizational structure of the test paper database, intelligent generating test paper algorithm and the main technology that fulfill test paper system is discussed in this thesis. Among them, the focus is on intelligent generating test paper algorithm.According to shortage that traditional algorithm hasn’t made full use of distribution statistical information of current test paper database’s characteristics (type, question number, difficulty, knowledge point) before generating test paper, a new algorithm is provided. The basic thought of algorithm is demonstrated as below. First, based on distribution statistical information of various problems’ characteristics of test paper database before selecting problems from test paper database, the feasibility and rationality of generating test paper’s requirement is analyzed. Then, after the range of knowledge point and difficulty requirement assured, intelligent and rational adjustment is imposed on question number of generating test paper, which makes question number of generating test paper within test paper database. It can avoid of defeat which arises from lacking of question number before generation test paper. Last, in the course of selecting question, based on history information of use and dynamic balance of knowledge point, suitable question is selected to make up test paper. The algorithm improves generating test papers’ efficiency and quality.