TY JOUR TI USER CHURN PREDICTION IN COMPUTER GAMES USING MACHINE LEARNING METHODS KW user churn prediction KW machine learning KW player behavior analysis KW explainable AI KW ensemble algorithms JO MOSCOW ECONOMIC JOURNAL AU Lebedeva, L.N. AU Kornev, D.V. AU Postol'nik, R.D. PY 2025 IS 10 PB Electronic science