aadex/simple_vit-imagenet100

Simple Vit - IMAGENET100

This model was trained using the vit-analysis framework for analyzing Vision Transformer positional encoding methods.

Model Details

Property	Value
Model Type	SIMPLE Vision Transformer
Dataset	imagenet100
Best Accuracy	71.94%
Image Size	224
Patch Size	16
Hidden Dim	192
Depth	12
Num Heads	3
MLP Dim	768
Num Classes	100

Model Description

This is a Vision Transformer with learnable positional embeddings. The model uses standard absolute positional embeddings that are learned during training.

Usage

import torch
from models import SimpleVisionTransformer

# Initialize model
model = SimpleVisionTransformer(
    image_size=224,
    patch_size=16,
    num_layers=12,
    num_heads=3,
    hidden_dim=192,
    mlp_dim=768,
    num_classes=100,
)

# Load checkpoint
checkpoint = torch.load('simple_vit_imagenet100_best.pth', map_location='cpu')
state_dict = checkpoint['state_dict']

# Remove 'module.' prefix if present (from DDP training)
state_dict = {k.replace('module.', ''): v for k, v in state_dict.items()}
model.load_state_dict(state_dict)
model.eval()

# Inference
from torchvision import transforms
from PIL import Image

transform = transforms.Compose([
    transforms.Resize(256),
    transforms.CenterCrop(224),
    transforms.ToTensor(),
    transforms.Normalize(mean=[0.485, 0.456, 0.406], std=[0.229, 0.224, 0.225]),
])

image = Image.open('your_image.jpg').convert('RGB')
input_tensor = transform(image).unsqueeze(0)

with torch.no_grad():
    output = model(input_tensor)
    prediction = output.argmax(dim=1)

Training

This model was trained with:

• Framework: PyTorch
• Optimizer: AdamW
• Mixed Precision: Enabled

Citation

If you use this model, please cite:

@misc{vit-analysis,
  title={Vision Transformer Position Encoding Analysis},
  year={2024},
  url={https://github.com/your-repo/vit-analysis}
}

License

Apache 2.0