timm
/

Image Classification
timm
PyTorch
Safetensors
rwightman HF staff commited on
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  1. README.md +153 -0
  2. config.json +41 -0
  3. model.safetensors +3 -0
  4. pytorch_model.bin +3 -0
README.md ADDED
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+ ---
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+ tags:
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+ - image-classification
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+ - timm
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+ library_tag: timm
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+ license: apache-2.0
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+ datasets:
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+ - imagenet-1k
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+ - imagenet-12k
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+ ---
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+ # Model card for rexnetr_200.sw_in12k_ft_in1k
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+
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+ A ReXNet-R image classification model. The R variant of the architecture is `timm` specific and rounds channels (modulus 8 or 16) to prevent performance issues w/ NVIDIA Tensor Cores. Pretrained on ImageNet-12k and fine-tuned on ImageNet-1k by Ross Wightman in `timm`.
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+
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+
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+ ## Model Details
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+ - **Model Type:** Image classification / feature backbone
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+ - **Model Stats:**
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+ - Params (M): 16.5
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+ - GMACs: 1.6
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+ - Activations (M): 15.1
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+ - Image size: train = 224 x 224, test = 288 x 288
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+ - **Papers:**
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+ - Rethinking Channel Dimensions for Efficient Model Design: https://arxiv.org/abs/2007.00992
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+ - **Original:** https://github.com/huggingface/pytorch-image-models
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+ - **Dataset:** ImageNet-1k
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+ - **Pretrain Dataset:** ImageNet-12k
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+
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+ ## Model Usage
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+ ### Image Classification
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+ ```python
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+ from urllib.request import urlopen
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+ from PIL import Image
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+ import timm
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+
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+ img = Image.open(urlopen(
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+ 'https://huggingface.co/datasets/huggingface/documentation-images/resolve/main/beignets-task-guide.png'
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+ ))
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+
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+ model = timm.create_model('rexnetr_200.sw_in12k_ft_in1k', pretrained=True)
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+ model = model.eval()
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+
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+ # get model specific transforms (normalization, resize)
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+ data_config = timm.data.resolve_model_data_config(model)
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+ transforms = timm.data.create_transform(**data_config, is_training=False)
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+
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+ output = model(transforms(img).unsqueeze(0)) # unsqueeze single image into batch of 1
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+
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+ top5_probabilities, top5_class_indices = torch.topk(output.softmax(dim=1) * 100, k=5)
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+ ```
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+
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+ ### Feature Map Extraction
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+ ```python
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+ from urllib.request import urlopen
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+ from PIL import Image
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+ import timm
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+
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+ img = Image.open(urlopen(
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+ 'https://huggingface.co/datasets/huggingface/documentation-images/resolve/main/beignets-task-guide.png'
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+ ))
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+
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+ model = timm.create_model(
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+ 'rexnetr_200.sw_in12k_ft_in1k',
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+ pretrained=True,
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+ features_only=True,
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+ )
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+ model = model.eval()
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+
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+ # get model specific transforms (normalization, resize)
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+ data_config = timm.data.resolve_model_data_config(model)
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+ transforms = timm.data.create_transform(**data_config, is_training=False)
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+
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+ output = model(transforms(img).unsqueeze(0)) # unsqueeze single image into batch of 1
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+
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+ for o in output:
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+ # print shape of each feature map in output
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+ # e.g.:
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+ # torch.Size([1, 32, 112, 112])
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+ # torch.Size([1, 80, 56, 56])
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+ # torch.Size([1, 120, 28, 28])
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+ # torch.Size([1, 256, 14, 14])
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+ # torch.Size([1, 368, 7, 7])
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+
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+ print(o.shape)
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+ ```
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+
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+ ### Image Embeddings
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+ ```python
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+ from urllib.request import urlopen
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+ from PIL import Image
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+ import timm
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+
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+ img = Image.open(urlopen(
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+ 'https://huggingface.co/datasets/huggingface/documentation-images/resolve/main/beignets-task-guide.png'
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+ ))
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+
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+ model = timm.create_model(
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+ 'rexnetr_200.sw_in12k_ft_in1k',
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+ pretrained=True,
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+ num_classes=0, # remove classifier nn.Linear
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+ )
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+ model = model.eval()
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+
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+ # get model specific transforms (normalization, resize)
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+ data_config = timm.data.resolve_model_data_config(model)
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+ transforms = timm.data.create_transform(**data_config, is_training=False)
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+
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+ output = model(transforms(img).unsqueeze(0)) # output is (batch_size, num_features) shaped tensor
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+
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+ # or equivalently (without needing to set num_classes=0)
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+
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+ output = model.forward_features(transforms(img).unsqueeze(0))
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+ # output is unpooled, a (1, 2560, 7, 7) shaped tensor
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+
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+ output = model.forward_head(output, pre_logits=True)
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+ # output is a (1, num_features) shaped tensor
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+ ```
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+
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+ ## Model Comparison
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+ Explore the dataset and runtime metrics of this model in timm [model results](https://github.com/huggingface/pytorch-image-models/tree/main/results)."
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+
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+ |model |top1 |top5 |param_count|img_size|crop_pct|
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+ |-------------------------|------|------|-----------|--------|--------|
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+ |rexnetr_300.sw_in12k_ft_in1k|84.53 |97.252|34.81 |288 |1.0 |
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+ |rexnetr_200.sw_in12k_ft_in1k|83.164|96.648|16.52 |288 |1.0 |
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+ |rexnet_300.nav_in1k |82.772|96.232|34.71 |224 |0.875 |
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+ |rexnet_200.nav_in1k |81.652|95.668|16.37 |224 |0.875 |
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+ |rexnet_150.nav_in1k |80.308|95.174|9.73 |224 |0.875 |
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+ |rexnet_130.nav_in1k |79.478|94.68 |7.56 |224 |0.875 |
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+ |rexnet_100.nav_in1k |77.832|93.886|4.8 |224 |0.875 |
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+
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+ ## Citation
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+ ```bibtex
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+ @misc{han2021rethinking,
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+ title={Rethinking Channel Dimensions for Efficient Model Design},
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+ author={Dongyoon Han and Sangdoo Yun and Byeongho Heo and YoungJoon Yoo},
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+ year={2021},
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+ eprint={2007.00992},
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+ archivePrefix={arXiv},
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+ primaryClass={cs.CV}
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+ }
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+ ```
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+ ```bibtex
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+ @misc{rw2019timm,
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+ author = {Ross Wightman},
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+ title = {PyTorch Image Models},
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+ year = {2019},
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+ publisher = {GitHub},
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+ journal = {GitHub repository},
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+ doi = {10.5281/zenodo.4414861},
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+ howpublished = {\url{https://github.com/huggingface/pytorch-image-models}}
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+ }
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+ ```
config.json ADDED
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+ {
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+ "architecture": "rexnetr_200",
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+ "num_classes": 1000,
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+ "num_features": 2560,
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+ "pretrained_cfg": {
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+ "tag": "sw_in12k_ft_in1k",
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+ "custom_load": false,
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+ "input_size": [
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+ 3,
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+ 224,
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+ 224
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+ ],
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+ "test_input_size": [
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+ 3,
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+ 288,
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+ 288
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+ ],
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+ "fixed_input_size": false,
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+ "interpolation": "bicubic",
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+ "crop_pct": 1.0,
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+ "crop_mode": "center",
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+ "mean": [
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+ 0.485,
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+ 0.456,
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+ 0.406
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+ ],
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+ "std": [
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+ 0.229,
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+ 0.224,
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+ 0.225
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+ ],
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+ "num_classes": 1000,
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+ "pool_size": [
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+ 7,
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+ 7
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+ ],
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+ "first_conv": "stem.conv",
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+ "classifier": "head.fc",
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+ "license": "apache-2.0"
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+ }
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+ }
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