Figure 8
From: Wave based damage detection in solid structures using spatially asymmetric encoder–decoder network
The focal loss values with different \(\gamma\) s and \(\alpha\) s. (a). Focal loss without weight \(\alpha\). (b). Focal loss with different \(\alpha\) value with fixed \(\gamma =0\). (c). Focal loss with different \(\alpha\) value with fixed \(\gamma =2\). (d). Focal loss with different \(\alpha\) value with fixed \(\gamma =5\).
