摘要

Recommender systems apply data analysis and behavior analysis to make personalized recommendation for users, and collaborative filtering is one of the most popular recommendation techniques which have been widely used. However it has been suffered from data sparsity and cold-start problems which lead to low novelty and predict precision. To solve those problems, a new hot items recommendation algorithm based on the items' attraction and normalized values of hot which represent the items' popularity is proposed. The experimental results in real dataset show that the proposed algorithm can achieve better recommendation variety and reduce the average popularity. Furthermore, it can bring better quality of recommendation.

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