A Sentiment Measurement Model for Online Reviews of Complex Products

In order to analyze the polarity and intensity of the fine-grained emotion based on online reviews of complex products, and to verify the difference between the rating and the sentiment of reviews, a sentiment measurement model based on a domain ontology, named DO-SSM(Sentiment Score Measurement model based on the Domain Ontology, DO-SSM) is proposed. Firstly, build a fine-grained domain ontology based on features of the complex product, then leverage the fine-grained emotional intensity quantification method to obtain the emotional intensity taxonomy of online reviews. Empirical study indicates that the resulting emotional intensity taxonomy of the complex product online reviews of the model can achieve high accuracy and interpretability. The proposed model can provide decision support for users and enterprises, offering corrective information for online review sites.