Network review emotion mining based on Domain Ontology

In the era of e-commerce, network reviews have become one of the most important means for people to exchange and obtain product information. It is an urgent need for consumers and enterprises to quickly and effectively obtain consumers' emotional attitude towards products from a large-scale network review. In order to better extract the product attributes involved in the network reviews and the emotional attitude of the consumer to the product attributes, this paper proposes a method of online comment sentiment analysis based on domain ontology. This method constructs the domain ontology, uses this ontology to extract product attributes, and constructs a domain sentiment dictionary to realize the emotional calculation of product attributes.