Fig. 2

(a) Dynamic response curves for gas sensors, (b) Gas mixtures with varied concentrations under dynamic conditions, (c) ML model with tree-based cross-validation based on k-folds (k = 10), (d) Tree-based ML models.
(a) Dynamic response curves for gas sensors, (b) Gas mixtures with varied concentrations under dynamic conditions, (c) ML model with tree-based cross-validation based on k-folds (k = 10), (d) Tree-based ML models.