Table 1 Experimental parameter settings.
Parameter category | Parameter | Value |
|---|---|---|
Model structure | The number of encoder layers | 6 |
The number of bidirectional decoder layers | 5 | |
Multimodal decoder | 1 | |
Model parameters | Word embedding dimension | 256 |
Hidden unit dimension | 512 | |
Feedforward layer dimension | 2048 | |
Optimizer | Adam | |
Initial learning rate | 0.0001 | |
Number of epochs | 50 | |
Mini-batch size | 64 | |
Warm-up | 4000 | |
Dropout | 0.1 |
