ankitkupadhyay
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5c9bc3a
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Parent(s):
17b5157
Upload 2 files
Browse filesadded app and requirement files
- app.py +79 -0
- requirements.txt +3 -0
app.py
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import torch
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import torch.nn as nn
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from transformers import ViTFeatureExtractor, ViTModel, BertTokenizerFast, BertModel
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from PIL import Image
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import gradio as gr
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class VisionLanguageModel(nn.Module):
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def __init__(self):
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super(VisionLanguageModel, self).__init__()
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self.vision_model = ViTModel.from_pretrained('google/vit-base-patch16-224-in21k')
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self.language_model = BertModel.from_pretrained('bert-base-uncased')
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self.classifier = nn.Linear(
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self.vision_model.config.hidden_size + self.language_model.config.hidden_size,
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2 # Number of classes: benign or malignant
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)
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def forward(self, input_ids, attention_mask, pixel_values):
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vision_outputs = self.vision_model(pixel_values=pixel_values)
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vision_pooled_output = vision_outputs.pooler_output
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language_outputs = self.language_model(
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input_ids=input_ids,
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attention_mask=attention_mask
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)
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language_pooled_output = language_outputs.pooler_output
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combined_features = torch.cat(
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(vision_pooled_output, language_pooled_output),
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dim=1
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)
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logits = self.classifier(combined_features)
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return logits
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# Load the model checkpoint
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model = VisionLanguageModel()
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model.load_state_dict(torch.load('best_model.pth', map_location=torch.device('cpu')))
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model.eval()
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tokenizer = BertTokenizerFast.from_pretrained('bert-base-uncased')
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feature_extractor = ViTFeatureExtractor.from_pretrained('google/vit-base-patch16-224-in21k')
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def predict(image, text_input):
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# Preprocess the image
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image = feature_extractor(images=image, return_tensors="pt").pixel_values
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# Preprocess the text
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encoding = tokenizer(
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text_input,
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add_special_tokens=True,
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max_length=256,
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padding='max_length',
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truncation=True,
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return_tensors='pt'
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)
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# Make a prediction
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with torch.no_grad():
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outputs = model(
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input_ids=encoding['input_ids'],
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attention_mask=encoding['attention_mask'],
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pixel_values=image
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)
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_, prediction = torch.max(outputs, dim=1)
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return "Malignant" if prediction.item() == 1 else "Benign"
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# Define Gradio interface
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iface = gr.Interface(
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fn=predict,
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inputs=[
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gr.inputs.Image(type="pil", label="Upload Skin Lesion Image"),
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gr.inputs.Textbox(label="Clinical Information (e.g., patient age, symptoms)")
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],
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outputs="text",
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title="Skin Lesion Classification Demo",
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description="This model classifies skin lesions as benign or malignant based on an image and clinical information."
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)
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iface.launch()
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requirements.txt
ADDED
@@ -0,0 +1,3 @@
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torch
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transformers
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gradio
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