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@@ -125,6 +125,7 @@ a synthetic regression task. At each checkpoint, the script records:
- training loss;
- full-model cosine between the BP gradient and the FA surrogate gradient at the FA weights;
+- hidden-layer-only cosine between the BP and FA gradients, excluding the output layer where gradients are identical;
- layerwise \(Q_l=\cos^2(W_{l+1}^{\top},B_l)\).
Outputs are written under `outputs/trajectory_mlp_fa/`: