TY CONF TI ONLINE PLATFORM FOR PREPARING STUDENTS OF SECONDARY EDUCATION FOR THE ALL-RUSSIAN TEST (VPR) USING A TRAINING AI KW automatic assessment KW artificial intelligence in education KW All-Russian test KW secondary vocational education KW latent semantic analysis KW hybrid NLP models KW digital educational environment JO MODELING INFORMATION SYSTEMS AND TECHNOLOGIES – 2026 AU Skvortsova, T.V. AU Piskursky, P.A. AU Avilova, O.A. PY 2026 PB FSBE Institution of Higher Education Voronezh State University of Forestry and Technologies named after G.F. Morozov