Figure 6
From: Prediction of air quality index based on the SSA-BiLSTM-LightGBM model

Column chart of single model prediction evaluation index comparison: (a) RMSE; (b) MAE; (c) SMAPE; (d) adjusted R2.
From: Prediction of air quality index based on the SSA-BiLSTM-LightGBM model

Column chart of single model prediction evaluation index comparison: (a) RMSE; (b) MAE; (c) SMAPE; (d) adjusted R2.