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Based On Improved Genetic Algorithm Of Online Test Intelligent Test Paper Generation System

Posted on:2014-02-01Degree:MasterType:Thesis
Country:ChinaCandidate:Z W LiFull Text:PDF
GTID:2298330431492716Subject:Computer technology
Abstract/Summary:PDF Full Text Request
The rapid development of Internet, to the life of people brought a huge change. Functions through the network online exam was gradually accept the education teaching institutions. Current online test has become the main way of teaching evaluation, is education, national defense, finance and other industries provide a kind of important form of knowledge examination, with its not controlled by the space and time, the candidates can be more objective and fair, can save the volume, the evaluation of manpower and material resources, the advantages of easy to store, making more and more important exams are in development towards the direction of the online test.Smart group volume system is the core of the online examination system, its main function is to automatically generate test paper of organizational structure and the assessment content, assessment of students is concrete embodiment of knowledge to master degree, and the effect of direct effects on the inspection. So the group volume system should not only guarantee the quality of test questions, and should with flexible, fast and convenient to the ability of generating examination paper, then the group strategy design is extremely important. This requires the group strategy designed to give an accurate and efficient, and rationality, randomness. At the same time guarantee the examination paper to meet the needs of teachers. Made under the condition of the computer network this special guarantee fairness and impartiality of the online test, all of these is the key to the realization of online examination system.This paper analyzes the development situation at home and abroad, smart group volume to the current intelligent group volume system used by the traditional algorithm and the advanced genetic algorithm is analyzed, finding relevant problems and improvements. Involved in the study of group technology and methods were analyzed, and introduced the existing smart group volume difference between the technology and the improved genetic algorithm advantage compared with traditional genetic algorithm. Combined with my working environment, from several aspects of demand analysis and system function analysis, the existing set of algorithm are discussed in this paper, describes the group strategy should be implemented by the target and functional requirements. On this basis, according to to the top-down design principles, for the online examination of smart group volume system to the overall design, especially for genetic algorithm design of problem "premature" and the situation of low efficiency of local search, carried on the thorough discussion.Based on the group strategy based on improved genetic algorithm as the research focus, and take the online exam system as the platform, the improved genetic algorithm is applied to it. The essence of the smart group volume is to follow certain rules of topics, from the choose a set of test questions and made their properties within a certain scope, meet the demand of the roll of paper. Paper using a real-coded genetic algorithm of global optimization and intelligent search feature, from the question bank is both good and fast take out a set of meet the requirements of the test questions, so as to get a satisfactory test paper.
Keywords/Search Tags:Online examination, Genetic algorithm, Real number coding, Genetic operators
PDF Full Text Request
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