面向互聯(lián)網(wǎng)的課程信息集成技術(shù)研究
[Abstract]:At present, the popularity of the Internet makes the amount of information on the Internet increase dramatically. However, due to the characteristics of the dispersity, complexity and heterogeneity of Internet information, it is sometimes not easy to find the information needed in such a large information world. For example, for students and teachers in school, they all need some high-quality exercise resources to improve their learning and teaching standards, because these learning resources are scattered in different places and in different forms on the Internet. How to make full and effective use of these resources has become an urgent problem. This paper studies this problem and puts forward the Internet-oriented framework and solution of curriculum information integration and integration. The main contributions are as follows: (1) the conceptual model of Web information integration for college curriculum exercises is proposed. The concepts of courses and exercises are defined, and a formal description method based on regular expressions is proposed for different exercise types. (2) A strategy of information integration and fusion for college courses is proposed. Through the comprehensive evaluation of different data sources, the appropriate data sources are determined, and a method of problem information recognition and extraction based on web page snapshot is proposed, including the identification of exercise types, the integration of exercise information from different data sources, Information supplement of incomplete exercises based on Web. (3) the evaluation strategy of course exercises based on AHP analytic hierarchy process and BP neural network is proposed. Based on the comprehensive analysis of a large number of exercise samples, four factors affecting the evaluation of exercise quality are determined, that is, length, type, knowledge point, difficulty, among which the difficulty factor is obtained by neural network algorithm. Finally, the influence weight of the above four factors on exercise quality is obtained by AHP analytic hierarchy process. (4) based on the model and method proposed in this paper, an information integration and fusion system of college course exercises based on Web is designed and implemented. Based on the system, the problem information related to the course can be automatically found and integrated on the Internet by giving a course name. This system has certain innovation, at present has not seen the similar system.
【學(xué)位授予單位】:天津理工大學(xué)
【學(xué)位級(jí)別】:碩士
【學(xué)位授予年份】:2017
【分類號(hào)】:G434;TP393.09
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