Update modeling_aimv2.py
Browse files- modeling_aimv2.py +12 -18
modeling_aimv2.py
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@@ -309,13 +309,6 @@ class AIMv2ForImageClassification(AIMv2PretrainedModel):
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'''
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import logging
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# Setup logging
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logging.basicConfig(level=logging.INFO)
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logger = logging.getLogger(__name__)
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class AIMv2ForImageClassification(AIMv2PretrainedModel):
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def __init__(self, config: AIMv2Config):
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super().__init__(config)
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@@ -341,15 +334,15 @@ class AIMv2ForImageClassification(AIMv2PretrainedModel):
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output_hidden_states: Optional[bool] = None,
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return_dict: Optional[bool] = None,
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) -> Union[tuple, ImageClassifierOutput]:
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return_dict = (
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return_dict if return_dict is not None else self.config.use_return_dict
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)
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# Call base model
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outputs = self.aimv2(
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@@ -359,30 +352,31 @@ class AIMv2ForImageClassification(AIMv2PretrainedModel):
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return_dict=return_dict,
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)
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sequence_output = outputs[0]
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# Classifier head
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logits = self.classifier(sequence_output[:, 0, :])
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loss = None
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if labels is not None:
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labels = labels.to(logits.device)
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# Always use cross-entropy loss
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loss_fct = CrossEntropyLoss()
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loss = loss_fct(logits.view(-1, self.num_labels), labels.view(-1))
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if not return_dict:
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output = (logits,) + outputs[1:]
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return ((loss,) + output) if loss is not None else output
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return ImageClassifierOutput(
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loss=loss,
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logits=logits,
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hidden_states=outputs.hidden_states,
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)
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'''
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class AIMv2ForImageClassification(AIMv2PretrainedModel):
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def __init__(self, config: AIMv2Config):
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super().__init__(config)
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output_hidden_states: Optional[bool] = None,
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return_dict: Optional[bool] = None,
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) -> Union[tuple, ImageClassifierOutput]:
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print("Forward pass initiated")
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print(f"Input pixel_values shape: {pixel_values.shape if pixel_values is not None else 'None'}")
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print(f"Head mask provided: {head_mask is not None}")
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print(f"Labels provided: {labels is not None}")
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return_dict = (
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return_dict if return_dict is not None else self.config.use_return_dict
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)
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print(f"Using return_dict: {return_dict}")
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# Call base model
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outputs = self.aimv2(
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return_dict=return_dict,
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)
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sequence_output = outputs[0]
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print(f"Sequence output shape: {sequence_output.shape}")
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# Classifier head
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logits = self.classifier(sequence_output[:, 0, :])
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print(f"Logits shape: {logits.shape}")
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loss = None
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if labels is not None:
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labels = labels.to(logits.device)
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print(f"Labels shape: {labels.shape}")
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# Always use cross-entropy loss
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loss_fct = CrossEntropyLoss()
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loss = loss_fct(logits.view(-1, self.num_labels), labels.view(-1))
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print(f"Loss computed: {loss.item()}")
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if not return_dict:
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output = (logits,) + outputs[1:]
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print("Returning as tuple")
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return ((loss,) + output) if loss is not None else output
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print("Returning as ImageClassifierOutput")
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return ImageClassifierOutput(
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loss=loss,
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logits=logits,
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hidden_states=outputs.hidden_states,
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)
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