Transformer Deep learning 6 transformer 6 Transformers 5 Feature extraction 4 Features extraction 4 deep learning 4 BERT 3 Consumption patterns 3 Convolutional neural network 3 Convolutional neural networks 3 DC transformers 3 Disaggregation 3 Domestic appliances 3 Electric load management 3 Energy 3 Energy disaggregation 3 Image enhancement 3 Imbalanced data 3 NILM 3 Nonintrusive load monitoring 3 Performance 3 Power signals 3 energy disaggregation 3 imbalanced data 3 non-intrusive load monitoring 3 transformers 3 Acoustic detection 2 Acoustic signals 2 Bit error rate 2