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Ablation studies for the loss functions in FCN and AFN on the RAF-DB dataset. The proposed affinity loss and partition loss both provide superior performance. Note that the cross-entropy loss is used in all cases.
| Task | Methods | Accuracy (%) |
|---|---|---|
| FCN | - | 88.17 |
| center loss | 88.91 | |
| affinity loss | 89.70 | |
| AFN | - | 88.20 |
| partition loss | 89.70 |
