lucidrains/transformer-in-transformer lucidrains/transformer-in-transformer

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    Python
  • License
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  • Created almost 4 years ago
  • Updated over 1 year ago
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lucidrains/transformer-in-transformer
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Repository Details

Implementation of Transformer in Transformer, pixel level attention paired with patch level attention for image classification, in Pytorch

Transformer in Transformer

Implementation of Transformer in Transformer, pixel level attention paired with patch level attention for image classification, in Pytorch.

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Install

$ pip install transformer-in-transformer

Usage

import torch
from transformer_in_transformer import TNT

tnt = TNT(
    image_size = 256,       # size of image
    patch_dim = 512,        # dimension of patch token
    pixel_dim = 24,         # dimension of pixel token
    patch_size = 16,        # patch size
    pixel_size = 4,         # pixel size
    depth = 6,              # depth
    num_classes = 1000,     # output number of classes
    attn_dropout = 0.1,     # attention dropout
    ff_dropout = 0.1        # feedforward dropout
)

img = torch.randn(2, 3, 256, 256)
logits = tnt(img) # (2, 1000)

Citations

@misc{han2021transformer,
    title   = {Transformer in Transformer}, 
    author  = {Kai Han and An Xiao and Enhua Wu and Jianyuan Guo and Chunjing Xu and Yunhe Wang},
    year    = {2021},
    eprint  = {2103.00112},
    archivePrefix = {arXiv},
    primaryClass = {cs.CV}
}

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