[Objective] To address the data sparsity issue and explore the impacts of emotional expression on user feature learning, this paper proposes a personalized recommendation algorithm based on sentiment and the importance of online reviews. [Methods] First, we used the BERT pre-trained language model to generate the vector representation of review texts. Then, we fed them into a Bi-GRU network to learn their semantic features. We also assigned weights to the review vector using sentiment weights and attention mechanisms. Finally, we utilized the DeepFM algorithm for deep interaction between user and product features to predict the user’s rating of the products. [Results] We examined the proposed model with the Amazon product data dataset. Our model reduced the RMSE and MAE metrics by up to 24.43% and 31.44% compared to the baseline models. Compared with the attention mechanism, our method reduced the RMSE and MAE metrics by up to 2.59% and 3.89%. [Limitations] The sentiment analysis method cannot represent the users’ emotional tendencies towards the different attributes of the product. [Conclusions] The proposed method considers the influence of user sentiment on user feature expression, improving the recommendation accuracy.
李慧, 胡耀华, 徐存真. 考虑评论情感表达力及其重要性的个性化推荐算法*[J]. 数据分析与知识发现, 2024, 8(1): 69-79.
Li Hui, Hu Yaohua, Xu Cunzhen. Personalized Recommendation Algorithm with Review Sentiments and Importance. Data Analysis and Knowledge Discovery, 2024, 8(1): 69-79.
For any sound techs that like to make things simple and easy to work，these xlr jumper cables are the way to go，and the quality is impressive. I used them for a new set of wireless mike to jump into my 16 channel board and was it so easy，my mikes are color coded and my cable fitted right in with the same color code thus making it easy to identify from afar and easy to control on the mixing board.
情感得分=1.473 情感权重=0.225
b
If you are have problems knowing what and where your systems are terminating，these are a must for you. I have mastched them with my microphones and it is easy for controlling and identifying.
情感得分=-0.070 情感权重=0.048
用户2
a
Love my assortment of picks and the price was right. I like that their is different gauges，because I don’t always like using the same so this is great with the three different gauges to choose from in all these nice colours but I only received 47 instead of 48 picks but whose counting，I'm still happy with my picks and would purchase from seller again，thanks.
情感得分=2.768 情感权重=0.505
b
Fast shipping，great price and most of all great stings，very satisfied would buy these strings again and would recommend to a friend.
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