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Item-based unified recommendation model
Kai DENG, Jiajin HUNAG, Jin QIN
Journal of Computer Applications    2020, 40 (2): 530-534.   DOI: 10.11772/j.issn.1001-9081.2019101791
Abstract433)   HTML2)    PDF (565KB)(325)       Save

The modeling of user-item interaction patterns is an important task for personalized recommendation. Many recommendation systems are based on the assumption that there is a linear relationship between users and items, and ignore the complexity and non-linearity of interaction between real and historical items, as a result, these systems cannot capture the complex decision-making process of users. Therefore, a more expressive top-N recommendation system’s item similarity factor model solution was combined with the multi-layer perceptron approach, to effectively model the higher-order relationships between items and capture more complex user decisions. The combination effect was verified on the three datasets of MovieLens, Foursquare and ratings_Digital_Music; and compared with the benchmark methods such as MLP (Multi-Layer Perception), Factored Item Similarity Model (FISM), DeepICF (Deep Item-based Collaborative Filtering) and ItemKNN (Item-based K-Nearest Neighbors), the results demonstrate that the proposed method has significant improvement in recommendation performance.

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