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• W2801320835 abstract "Recommender systems have become increasingly essential in many domains for alleviating the problem of information overload, but existing recommendation techniques suffer from data sparsity and transparency issues. In this paper, we show that the adjective features embedded in user reviews can be used by the recommendation techniques to address the sparsity and transparency problems. We extend the standard frequency-inverse document frequency (TF-IDF) term weighting scheme by introducing nearest neighbors frequency (NNF) to automatically extract high-quality adjective features from user reviews, and incorporate the extracted adjective features into a specific recommendation technique to show effectiveness. The results of experiments conducted on real-world datasets show that the integrated method reduced the prediction errors of the state-of-the-art rating-based method by 19.5% in extremely sparse settings. When compared with the state-of-the-art tag-based method, the proposed method reduced the prediction errors by 11.3%, and increased the interest similarity in similar user identification by 7.1%." @default.
• W2801320835 created "2018-05-17" @default.
• W2801320835 creator A5016093986 @default.
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• W2801320835 date "2018-05-01" @default.
• W2801320835 modified "2023-10-14" @default.
• W2801320835 title "Do adjective features from user reviews address sparsity and transparency in recommender systems?" @default.
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• W2801320835 doi "https://doi.org/10.1016/j.elerap.2018.04.002" @default.
• W2801320835 hasPublicationYear "2018" @default.
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