TY JOUR TI Features of Text Preprocessing for Performing Sentiment Analysis KW mining KW data analysis KW sentiment analysis KW neural networks KW text processing JO Intellectual Technologies on Transport AU Kosykh, N.E. AU Molodkin, I.A. AU Khomonenko, A.D. PY 2022 IS 0 PB FSBEI HE "Emperor Alexander I St. Petersburg State Transport University"