Table 1 Training parameters for FADiff.

From: Adaptive diffusion models for overcoming data scarcity in long-distance face recognition

Parameter

Value

Optimizer

AdamW

FCEM initial learning rate

0.0001

FAIE initial learning rate

0.0002

DM learning rate

0.0001

Batch size

64

Total training epochs

250 (FCEM), 300 (FAIE), 400 (FADiff)

Diffusion steps (T)

1000

Weight decay

1e-4

Gradient clipping norm

1.0

Learning rate scheduler

Cosine Annealing

Loss functions

ArcFace Loss (FCEM), L1 (FAIE), MSE (FADiff)

Face image resolution

128 × 128,128 \times 128,128 × 128

Mixed precision

Enabled (AMP)

Hardware

4 × NVIDIA A100 GPUs (40 GB)