Automatic questions selecting method of examination system on network based on layered genetic algorithm

An examination system and genetic algorithm technology, applied in the field of automatic question selection of an online examination system based on a hierarchical genetic algorithm, can solve the problems of difficulty in guaranteeing the accuracy of test papers and other requirements, so as to improve the verification efficiency and improve the question selection. Efficiency, the effect of enhancing compliance

Inactive Publication Date: 2012-09-12
BEIJING UNIV OF POSTS & TELECOMM
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AI Technical Summary

Problems solved by technology

Faced with such a huge test question bank, it is unavoidable to avoid a huge workload manually
At the same time, it is difficult to guarantee the accuracy and other requirements of the test papers

Method used

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  • Automatic questions selecting method of examination system on network based on layered genetic algorithm
  • Automatic questions selecting method of examination system on network based on layered genetic algorithm
  • Automatic questions selecting method of examination system on network based on layered genetic algorithm

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Embodiment Construction

[0086] The present invention is described in more detail below in conjunction with accompanying drawing example:

[0087] Algorithm of the present invention is characterized in that:

[0088] Suppose that the online examination system includes 1 test question bank, 1 Web server, and n users U 1 , U 2 ,...,U n ; When any user requests the test paper from the web server, specify the total score of the test paper S a , the expected average score of the test paper S, the number of test questions required by various test questions n 1 , n 2 ,...,n l , where l represents the type of test questions; the set of knowledge points that should be assessed in the test paper is {P 1 , P 2 ,...,P k}; The frequency of test questions is C 1 , C 2 ,...,C m ;

[0089] The set of test questions is Z={Z 1 ,Z 2 ,…,Z m}, Knowledge points that meet the test of this question and frequency of use ∈{C 1 , C 2 ,...,C m}Two conditions, among them, the test question Z i The difficult...

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Abstract

The present invention provides an automatic questions selecting method of an examination system on a network based on a layered genetic algorithm. A key point of the invention is introducing characteristics of the layered genetic algorithm into the automatic questions selection of the examination system on the network. The method can select questions which are best matched with a question requirement to generate examination paper rapidly and satisfy the rapid and high-efficiency question requirement by the high capacity item bank of the examination system according to the crucial attributes of investigation scope and difficulty of paper etc. with respect to users. The automatic questions selecting method based on the layered genetic algorithm can integrate situations such as questions difficulty of various levels, total difficulty of the paper and questions that have already been used in examines, so that a question selection efficiency of the examination system can be greatly enhanced, a matching degree between the paper and the question selection requirement can be improved, and a checking efficiency can be increased.

Description

(1) Technical field [0001] The invention relates to an automatic topic selection method for an online examination system based on a layered genetic algorithm. (2) Background technology [0002] In today's world, the idea of ​​cloud computing is developing vigorously, and various application systems based on cloud computing have emerged as the times require. Rejuvenating the country through science and education is the established strategy of the country and plays a pivotal role. The cloud education system realizes the perfect combination of cloud computing and education. The online examination system based on the cloud education system is an important supplement to the cloud education system and an important means of testing the quality of education. [0003] Examination is an important link to test the teaching level of teachers and the learning ability of students. How to get a reasonable, highly differentiated, and wide-ranging test paper is an important sign to judge wh...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G09B7/06G06N3/12
Inventor 姚文斌雷鸣涛韩司叶鹏迪王枞
Owner BEIJING UNIV OF POSTS & TELECOMM
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