Abstract | ||
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As a technology based on statistics and knowledge discovery, recommendation system can automatically provide appropriate recommendations to users, which is considered as a very effective tool for reducing information load. The accuracy and diversity of recommendation are important objectives of evaluating an algorithm. In order to improve the diversity of recommendation, a personalized recommendation algorithm Multi-Objective Evolutionary Algorithm with Probabilistic-spreading and Genetic Mutation Adaptation (MOEA-PGMA) based on Personalized Recommendation based on Multi-Objective Evolutionary Optimization (MOEA-ProbS) is proposed in this paper. Low-grade and unpurchased items are preprocessed before predicting the scores to avoid recommending low-grade items to users and improve recommendation accuracy. By introducing adaptive mutation, the better individuals will survive in the evolution with a smaller mutation rate, and worse individuals will eliminate. The experimental results show that MOEA-PMGA has a higher population search ability compared to MOEA-ProbS, and has improved the accuracy and diversity on the optimal solution set. |
Year | Venue | Field |
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2018 | ICSI | Recommender system,Population,Mutation rate,Evolutionary algorithm,Adaptive mutation,Computer science,Algorithm,Knowledge extraction,Artificial intelligence,Solution set,Machine learning |
DocType | Citations | PageRank |
Conference | 0 | 0.34 |
References | Authors | |
4 | 3 |
Name | Order | Citations | PageRank |
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Xiaoyan Shi | 1 | 0 | 0.68 |
Wei Fang | 2 | 339 | 19.89 |
Guizhu Zhang | 3 | 0 | 0.68 |