In order to improve the prediction accuracy of gas emission in the mining face. a method combining least absolute value convergence and selection operator (LASSO). whale optimization algorithm (WOA). and extreme gradient boosting (XGBoost) was proposed. https://safeersappliancers.shop/product-category/bosch-kgn36vleag-60cm-60-40-fridge-freezer-324-litre-stainless-steel/