TY JOUR TI AN INFORMATION SYSTEM FOR MANAGING PERSONNEL TURNOVER USING MACHINE LEARNING TECHNOLOGIES (USING RUSSIAN RAILWAYS AS AN EXAMPLE) KW MATHEMATICAL MODEL KW NEURAL NETWORK KW MACHINE LEARNING KW HR SPECIALIST JO Herald of Technological University AU Kalyashina, A.V. AU Smirnov, Y.N. PY 2026 IS 29 PB Kazan National Research Technological University