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- import paddle
- from paddle.nn import Sigmoid
- from paddlex.ppcls.arch.backbone.legendary_models.vgg import VGG19
- __all__ = ["VGG19Sigmoid"]
- class SigmoidSuffix(paddle.nn.Layer):
- def __init__(self, origin_layer):
- super(SigmoidSuffix, self).__init__()
- self.origin_layer = origin_layer
- self.sigmoid = Sigmoid()
- def forward(self, input, res_dict=None, **kwargs):
- x = self.origin_layer(input)
- x = self.sigmoid(x)
- return x
- def VGG19Sigmoid(pretrained=False, use_ssld=False, **kwargs):
- def replace_function(origin_layer):
- new_layer = SigmoidSuffix(origin_layer)
- return new_layer
- match_re = "linear_2"
- model = VGG19(pretrained=pretrained, use_ssld=use_ssld, **kwargs)
- model.replace_sub(match_re, replace_function, True)
- return model
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