Abstract
Sentiment analysis plays an essential role in identifying user
preferences for recommender system. However, existing recommendation
systems mainly focus on the relationships between items and the user’s
purchasing behavior while ignoring the user’s sentiment information. To
improve the accuracy of recommender system, in this paper, a
multi-feature fusion recommendation model based on sentiment analysis
(MFF-SA) is proposed. Firstly, rather than sentiment values, sentiment
vectors are obtained by a new quantify sentiment method that based on
natural language processing, which to gain more valuable insights about
uses’ preferences. Secondly, to explicitly model the features
interactions, a multi-head self-attention mechanism is introduced, which
can capture multiple different aspects of the feature relationship
simultaneously. Finally, experimental results on three datasets
demonstrate that the proposed methods outperform the state-of-the-art
methods in terms of effectiveness and feasibility with a 3.9% relative
improvement.