Table 6.

Comparative analysis of the proposed method with state-of-the-art for hourly data resolution using IHEPC. Bold and underlined results demonstrate the best and runner-up performance.

References	Method	MSE	RMSE	MAE
Mocanu et al. [48] 2016	FCRBM	-	0.66	-
Marino et al. [49] 2016	LSTM-S2S	0.55	0.74	-
Ullah et al. [32] 2019	MLDB-BLSTM	0.31	0.56	0.34
Le et al. [50] 2019	CNN-BiLSTM	0.29	0.54	0.39
Rajabi et al. [52] 2019	CNN-2D-RP	-	0.79	0.59
Kim and Cho [51] 2019	SE-AE	0.38	-	0.39
Kim and Cho [55] 2019	CNN-LSTM	0.37	0.61	0.34
Khan et al. [53] 2020	CNN+LSTM-AE	0.19	0.47	0.31
Sajjad et al. [54] 2020	CNN-GRU	0.22	0.47	0.33
Khan et al. [21] 2020	CNN-MB-GRU	0.18	0.42	0.29
Jun and Cho [56] 2020	CNN-LSTM-MHA	0.26	-	-
Khan et al. [57] 2021	AB	0.56	0.75	0.67
Proposed	ACL+RGRU	0.17	0.41	0.26