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Details of FFB methods.
| FFB model |
Layer1 | Feature Vector1 |
Layer2 | Feature Vector2 |
Fusion feature vector |
|---|---|---|---|---|---|
| FFB1 | fc6 (AlexNet) |
4096 | fc1000 (ResNet18) |
1000 | 5096 |
| FFB2 | fc6 (AlexNet) |
4096 | pool5 (ResNet18) |
512 | 4608 |
| FFB3 | fc6 (AlexNet) |
4096 | fc1000 (ResNet50) |
1000 | 5096 |
| FFB4 | fc1000 (ResNet18) |
1000 | pool5 (ResNet18) |
512 | 1512 |
| FFB5 | fc1000 (ResNet18) |
1000 | fc1000 (ResNet50) |
1000 | 2000 |
| FFB6 | pool5 (ResNet18) |
512 | fc1000 (ResNet50) |
1000 | 1512 |
