NEURAL NETWORK DETECTION AND CLASSIFICATION OF PROPAGANDA TECHNIQUES AND OBJECTS IN THE TEXT CONTENT

Abstract

Approach to neural network detection and classification of techniques and objects of propaganda in text content is proposed, which consists of three consecutive stages and provides effective detection of propaganda presence, classification of used propaganda techniques, and establishment of objects of detected propaganda influence. The step of classifying texts by propaganda content by neural network models of deep learning allows the detection of both explicit and hidden propaganda messages, based on the combination of traditional recurrent neural networks with long-term memory with transformative neural networks, which provides a deeper understanding of sequence and context in textual content and allows to achieve accuracy of 97.83%. The stage of detecting propaganda techniques by markers with a visual interpretation of the decisions made allows you to transform input data in the form of text for analysis and 17 machine learning models trained by individual technicians into output data that contain numerical estimates of the presence of each of the propaganda techniques and marked text with visual analytics of the presence of detected markers propaganda, which provides the detection of various propaganda techniques with a minimum accuracy of 82.03%, which is better than known analogues in terms of detection propaganda regardless of the methods used. The stage of identifying objects of propaganda by neural network models of deep learning with visual interpretation of the decisions made is characterized by the expansion of the set of objects of propaganda due to the addition of variants of their verbal representations and the use of context windows to identify relationships between the techniques used and objects of propaganda, which made it possible improve the results of detection of propaganda objects and visually interpret them. Significant problems in the direction of identifying propaganda have been solved, namely: the lack of a comprehensive analysis of the interrelationships of techniques and objects of propaganda in texts; lack of generalizations for objects of propaganda and their alternative mentions in texts. For the visual interpretation of the obtained results, a visual analytics is formed regarding the found techniques and objects of propaganda, which allows you to visually observe the objects of influence within the framework of the used propaganda techniques.