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README.md
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license: cc-by-4.0
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---
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---
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license: cc-by-4.0
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datasets:
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- imagenet-1k
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metrics:
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- accuracy
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pipeline_tag: image-classification
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language:
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- en
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tags:
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- vision transformer
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- simpool
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- computer vision
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- deep learning
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---
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# Supervised ViT-S/16 (small-sized Vision Transformer with patch size 16) model with SimPool
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ViT-S model with SimPool (gamma=1.25) trained on ImageNet-1k for 300 epochs.
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SimPool is a simple attention-based pooling method at the end of network, introduced on this ICCV 2023 [paper](https://arxiv.org/pdf/2309.06891.pdf) and released in this [repository](https://github.com/billpsomas/simpool/).
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Disclaimer: This model card is written by the author of SimPool, i.e. [Bill Psomas](http://users.ntua.gr/psomasbill/).
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## Motivation
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Convolutional networks and vision transformers have different forms of pairwise interactions, pooling across layers and pooling at the end of the network. Does the latter really need to be different?
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As a by-product of pooling, vision transformers provide spatial attention for free, but this is most often of low quality unless self-supervised, which is not well studied. Is supervision really the problem?
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## Method
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SimPool is a simple attention-based pooling mechanism as a replacement of the default one for both convolutional and transformer encoders. For transformers, we completely discard the [CLS] token.
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Interestingly, we find that, whether supervised or self-supervised, SimPool improves performance on pre-training and downstream tasks and provides attention maps delineating object boundaries in all cases.
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One could thus call SimPool universal.
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## BibTeX entry and citation info
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```
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@misc{psomas2023simpool,
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title={Keep It SimPool: Who Said Supervised Transformers Suffer from Attention Deficit?},
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author={Bill Psomas and Ioannis Kakogeorgiou and Konstantinos Karantzalos and Yannis Avrithis},
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year={2023},
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eprint={2309.06891},
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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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