Delete modeling_resnet.py
Browse files- modeling_resnet.py +0 -54
modeling_resnet.py
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from transformers import PreTrainedModel
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from timm.models.resnet import BasicBlock, Bottleneck, ResNet
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from .configuration_resnet import ResnetConfig
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import torch
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BLOCK_MAPPING = {"basic": BasicBlock, "bottleneck": Bottleneck}
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class ResnetModel(PreTrainedModel):
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config_class = ResnetConfig
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def __init__(self, config):
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super().__init__(config)
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block_layer = BLOCK_MAPPING[config.block_type]
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self.model = ResNet(
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block_layer,
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config.layers,
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num_classes=config.num_classes,
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in_chans=config.input_channels,
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cardinality=config.cardinality,
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base_width=config.base_width,
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stem_width=config.stem_width,
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stem_type=config.stem_type,
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avg_down=config.avg_down,
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)
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def forward(self, tensor):
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return self.model.forward_features(tensor)
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class ResnetModelForImageClassification(PreTrainedModel):
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config_class = ResnetConfig
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def __init__(self, config):
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super().__init__(config)
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block_layer = BLOCK_MAPPING[config.block_type]
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self.model = ResNet(
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block_layer,
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config.layers,
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num_classes=config.num_classes,
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in_chans=config.input_channels,
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cardinality=config.cardinality,
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base_width=config.base_width,
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stem_width=config.stem_width,
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stem_type=config.stem_type,
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avg_down=config.avg_down,
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)
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def forward(self, tensor, labels=None):
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logits = self.model(tensor)
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if labels is not None:
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loss = torch.nn.cross_entropy(logits, labels)
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return {"loss": loss, "logits": logits}
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return {"logits": logits}
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