Peng Jia-en, Deng Xiu-qin, Liu Tai-heng, et al. A Recommendation Algorithm of Latent Factor Model Fused with the Social and Tag Information[J]. 2018, 35(4): 45-50.
Peng Jia-en, Deng Xiu-qin, Liu Tai-heng, et al. A Recommendation Algorithm of Latent Factor Model Fused with the Social and Tag Information[J]. 2018, 35(4): 45-50.DOI: 10.12052/gdutxb.170140.
A Recommendation Algorithm of Latent Factor Model Fused with the Social and Tag Information
In order to improve the recommendation performance of latent factor model under the circumstance of data sparseness
a latent factor model with the social regularization and the tag regularization is proposed. According to the user’s social network and the item’s tag information
the regularization depicting the profiles of the user and the item is designed
and the user rating preferences calculated by using user’s history rating of items. These three items are introduced into the objective function of the matrix decomposition to further constrain the objective function. Finally
the gradient descent method is used to optimize the model parameters and get the recommendation result. To verify the efficacy of the proposed method
the model is tested by the Last.fm data set
and the experimental results show that the recommendation algorithm proposed in this study has a better recommendation performance compared with other traditional recommendation algorithms.
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references
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