优化这段代码def xception(num_classes=1000, pretrained='imagenet', replace_stride_with_dilation=None): model = Xception(num_classes=num_classes, replace_stride_with_dilation=replace_stride_with_dilation) if pretrained: settings = pretrained_settings['xception'][pretrained] assert num_classes == settings['num_classes'], \ "num_classes should be {}, but is {}".format(settings['num_classes'], num_classes) model = Xception(num_classes=num_classes, replace_stride_with_dilation=replace_stride_with_dilation) model.load_state_dict(model_zoo.load_url(settings['url'])) # TODO: ugly model.last_linear = model.fc del model.fc return model
时间: 2024-03-08 08:48:58 浏览: 230
VGG19_notop_xception_top_imagenet_class_index
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可以通过将模型定义和预训练权重加载分开,以更好地组织代码。例如,可以创建两个函数,一个用于定义模型,一个用于加载预训练权重。这样可以使代码更加清晰易懂。另外,也可以将 `TODO: ugly` 标记改为更具体的描述,以便后续改进。下面是一种可能的优化方案:
```
def xception(num_classes=1000, pretrained='imagenet', replace_stride_with_dilation=None):
model = Xception(num_classes=num_classes, replace_stride_with_dilation=replace_stride_with_dilation)
if pretrained:
state_dict = load_pretrained_xception(pretrained)
model.load_state_dict(state_dict)
model.last_linear = model.fc
del model.fc
return model
def load_pretrained_xception(pretrained):
settings = pretrained_settings['xception'][pretrained]
num_classes = settings['num_classes']
assert num_classes == 1000, "num_classes should be 1000, but is {}".format(num_classes)
state_dict = model_zoo.load_url(settings['url'])
return state_dict
```
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