This repository is the official implementation of the paper - "PatchGame: Learning to SignalMid-level Patches in Referential Games"

We recommend using anaconda or miniconda for python. Our code has been tested with python=3.8 on linux.

To create a new environment with conda

conda create -n patchgame python=3.8
conda activate patchgame

We recommend installing the latest pytorch and torchvision packages You can install them using

conda install pytorch torchvision -c pytorch

Make sure the following requirements are met

• torch>=1.8.1
• torchvision>=0.9.1

Note we only tried installing torchsort with following cuda==10.2.89 and gcc==6.3.0.

export TORCH_CUDA_ARCH_LIST="Pascal;Volta;Turing"
unzip torchsort.zip && cd torchsort
python setup.py install --user
cd .. && rm -rf torchsort

We use ImageNet-1k (ILSVRC2012) data in all our experiments. Please download and save the data from the official website.

To train the model(s) in the paper on 1-8 GPUs, run this command (where nproc_per_node is the number of gpus):

python -m torch.distributed.launch --nproc_per_node=1 train.py \
    --data_path /patch/to/imagenet/dir/train \
    --output_dir /path/to/checkpoint/dir \
    --patch_size 32 --epochs 100

You can download pretrained models here trained on ImageNet using parameters using above command (and default hyperparameters).

python eval_patchrank.py --patch-model mymodel.pth --data-path <path to dataset> --topk <no. of patches to use>

This achieves the following accuracy on ImageNet.

python -m torch.distributed.launch --nproc_per_node=1 eval_knn.py \
    --pretrained_weights /path/to/checkpoint/dir/checkpoint.pth \
    --arch resnet18 --nb_knn 20 \
    --batch_size_per_gpu 1024 --use_cuda 0 \
    --data_path /patch/to/imagenet/dir

This achieves the following accuracy on ImageNet

We would like to thank several public repos from where we borrowed various utilities

• https://github.com/facebookresearch/detr,
• https://github.com/facebookresearch/deit,
• https://github.com/facebookresearch/barlowtwins
• https://github.com/rwightman/pytorch-image-models

This repository is released under the Apache 2.0 license as found in the LICENSE file.