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One potential solution to the problem of information overload is the recommendation system, and the main task of recommendation system based on user portrait is to combine user and product, by mapping user portrait and product portrait, combining association rule mining and reordering algorithm, a personalized product recommendation list is obtained. Not only can help users find valuable information for themselves, but also can make the information displayed in front of interested users, so as to achieve a win-win situation between information consumers and information producers.
Wu et al. (Sun,) studied this question.