TY JOUR TI Sentiment Analysis of Russian-Language Texts Using Neural Network Models KW sentiment analysis KW text tonality KW emotional coloring of text KW neural network models KW DeepSeek KW RuSentiment JO Scientific Research and Development. Modern Communication Studies AU Prosvirkina, I.I. AU Golubeva, M.A. PY 2025 IS 14 PB INFRA-M Academic Publishing LLC.