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Article type: Research Article
Authors: Qiu, Ganga; b; * | Song, Changjunb | Jiang, Lipingb | Guo, Yanlib; *
Affiliations: [a] School of Software, Shandong University, Jinan, Shandong, China | [b] School of Computer Engineering, Changji University, Changji, Xinjiang, China
Correspondence: [*] Corresponding authors: Gang Qiu, School of Software, Shandong University, Jinan, Shandong, China. E-mail: qiugang @cjc.edu.cn. Yanli Guo, School of Computer Engineering, Changji University, Changji, Xinjiang, China. E-mail: gyl@cjc.edu.cn.
Abstract: With the rapid development of technologies such as cloud computing, big data, and the Internet of Things, the scale of data continues to grow. The recommendation system has become one of the important intelligent software to help users make decisions. The recommendation model based on user rating data is widely studied and applied, but the data sparsity problem and the cold start problem seriously affect the recommendation quality. In this paper, Multi-view Hybrid Recommendation Model (MHRM) based on deep learning is proposed. First, we use WLDA (an improved Latent Dirichlet Allocation method) to extract the vector representation of user review text, and then apply LSTM to contextual semantic level user review sentiment analysis. At the same time, the emotion fusion method based on user score embedding is proposed. The problems such as deviations between the user score and actual interest preference, and unbalanced distribution of the score level are solved. This paper has been tested on Amazon product data and compared with various classic recommendation algorithms, using Mean Absolute Error (MAE), hit rate and standardized discount cumulative return for performance evaluation. The experimental results show that the prediction of the MHRM proposed in this paper on the 7 recommendation data and the TopN recommendation index have been significantly improved.
Keywords: Deep learning, recommender systems, emotion analysis, MHRM
DOI: 10.3233/IDA-215988
Journal: Intelligent Data Analysis, vol. 26, no. 4, pp. 977-992, 2022
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