“Forecasting International Stock Market Trends: XGBoost, LSTM, LSTM-XGBoost, and Backtesting XGBoost Models”. Statistics, Optimization & Information Computing 12, no. 1 (November 3, 2023): 200–209. Accessed April 23, 2026. https://www.iapress.org/index.php/soic/article/view/1822.