基于多特征排序模型的網(wǎng)絡(luò)課程推薦算法研究與應(yīng)用
[Abstract]:With the rapid development of open online courses, online education, a new form of learning, has been accepted by more and more people. Users can learn knowledge and skills in various fields through the Internet, but with the increasing number and variety of online course resources, users often encounter difficulties in choosing the courses they want to learn. The introduction of recommendation algorithm can provide suggestions for users to learn courses. However, there are some limitations in web-based courses, such as less text information, insufficient information on user behavior, lack of evaluation information, etc. The traditional recommendation algorithm can not be directly applied to the recommendation of network courses, and it needs to be innovated and improved based on the unique scene of network courses. Based on the full analysis of cloud classroom user data, this paper studies and implements a network course recommendation algorithm based on multi-feature ranking model. The algorithm combines several features of network courses and users, including topic-based user preferences, collaborative filtering based user preferences, course popularity, instructor influence. The linear combination of these features is carried out by the method of ranking learning, and the matching degree between the target user and the network course is calculated, and then the course recommendation is made for the user. In order to verify the effectiveness of the algorithm, a large number of experiments have been carried out on the real data set in the cloud classroom. The experimental results show that the proposed algorithm can get a better recommendation effect and has a certain improvement compared with the reference algorithm. In addition, this paper designs and implements the course recommendation system based on cloud classroom, whose function is realized on the basis of the home page of cloud classroom user's personal learning. The test system runs well, and the practicability of the algorithm is verified.
【學(xué)位授予單位】:浙江大學(xué)
【學(xué)位級(jí)別】:碩士
【學(xué)位授予年份】:2017
【分類號(hào)】:TP391.3
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