| Methods | Parameter description |
| The proposed method | The network structure parameters are 1200-800-100-20-10, learning rate is 0.3, momentum is 0.5, training iteration number is 10, fine-tuning iterations are 50, the Gaussian kernel parameter is 26.40. |
| Standard SAE | The network structure parameters are 1200-800-100-20-10, learning rate is 0.3, momentum is 0.5, training iteration number is 10, fine-tuning iterations are 50. |
| Standard DBN | The network structure parameters are 1200-800-100-20-10, learning rate is 0.3, momentum is 0.5, training iteration number is 10, fine-tuning iterations are 50. |
| The proposed method with PK | The network structure parameters are 1200-800-100-20-10, learning rate is 0.3, momentum is 0.5, training iteration number is 10, fine-tuning iterations are 50, the PK parameters are b = 0, d = 1.20. |
| The proposed method with PEK | The network structure parameters are 1200-800-100-20-10, learning rate is 0.3, momentum is 0.5, training iteration number is 10, fine-tuning iterations are 50, the PEK parameter is 30.00. |
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