TY JOUR TI Expert System for Diagnosing Rail Circuit Faults Using Artificial Intelligence KW expert system KW knowledge repository KW product model KW semantic model KW frame model KW formal logical models KW algorithm KW rail chains KW decision-making mechanism JO Intellectual Technologies on Transport AU Aliev, R.M. AU Aliev, M.M. AU Tohirov, E.T. PY 2024 IS 0 PB FSBEI HE "Emperor Alexander I St. Petersburg State Transport University"