Fig. 3

Inverter temperature predictions of M1–M5 compared to ground truth. Note: (a)–(d) correspond to comparison models in the data augmentation and dimensionality reduction stage (M2-GAN-RF, M3-DG-RF, M4-RTDG-RF, M5-RTDG-GMRF), validating the RTDG-GMRF framework. M1-M5 in Table 1 refer to Transformer variants in the downstream temperature prediction stage, representing preprocessing and prediction phases respectively.