Coal mine information recommendation system based on collaborative filtering
A collaborative filtering and information recommendation technology, applied in the field of coal mine information system, can solve the problem that the retrieval mode cannot satisfy users and so on.
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[0015] Based on collaborative filtering technology, community-oriented coal mine information recommendation system coal mine information collaborative filtering module, community user group access log module, recommendation module. Among them, the coal mine information collaborative filtering module is responsible for analyzing the user's access log and using the collaborative filtering algorithm to find out the user's neighbors; the community user group access log module is responsible for log management; the recommendation module is responsible for calculating the recommended information and recommending it to users. The coal mine information collaborative filtering module is the focus of this system, and its main steps are:
[0016] (1) System initialization: This step is mainly based on the access logs of users in the coal mine community to construct a coal mine user-coal mine web page rating matrix, which is denoted as A, assuming that the matrix includes s users u 1 ,u ...
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