This paper describes the necessity of named-entity recognition for the implementation of sentiment analysis and presents methods and tools for recognition of appropriate named entities in Ukrainian restaurant reviews.
The paper deals with the means of expression of emotions in the language of the Internet. The existing methods of extraction of emotional elements in the text, as well as systems that implement the analysis of the emotional elements were analyzed in the article. Features of emotional elements are described, by means of which they are defined in the text. The use of the notation of Backus-Naur form to highlight the emotional elements was proposed in the paper. The proposed approach was implemented using the Java programming language.