User Mood Recognition and Further Dialog Support

The research article addresses the urgent and topical problem of preserving the customer service users' answers in Ukrainian for further processing, particularly for sentiment analysis and improvement of neural networks that recognise and analyse texts in Ukrainian. The system has been proposed for this purpose, designed using a visual programming tool Node-RED integrated with a document database MongoDB. The article contains both the description of test cases for the designed system and the results of the system's application.