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README.md

SSKD

This repo is the implementation of paper Knowledge Distillation Meets Self-Supervision (ECCV 2020).

Prerequisite

This repo is tested with Ubuntu 16.04.5, Python 3.7, PyTorch 1.5.0, CUDA 10.2. Make sure to install pytorch, torchvision, tensorboardX, numpy before using this repo.

Running

Teacher Training

An example of teacher training is:

python teacher.py --arch wrn_40_2 --lr 0.05 --gpu-id 0

where you can specify the architecture via flag --arch

You can also download all the pre-trained teacher models here. If you want to run student.py directly, you have to re-organise the directory. For instance, when you download vgg13.pth, you have to make a directory for it, say teacher_vgg13, and then make a new directory ckpt inside teacher_vgg13. Move the vgg13.pth into teacher_vgg13/ckpt and rename it as best.pth. If you want a simpler way to use pre-trained model, you can edit the code in student.py (line 90).

Student Training

An example of student training is:

python student.py --t-path ./experiments/teacher_wrn_40_2_seed0/ --s-arch wrn_16_2 --lr 0.05 --gpu-id 0

The meanings of flags are:

--t-path: teacher's checkpoint path. Automatically search the checkpoint containing 'best' keyword in its name.

--s-arch: student's architecture.

All the commands can be found in command.sh

Results (Top-1 Acc) on CIFAR100

Similar-Architecture

Teacher
Student
wrn40-2
wrn16-2
wrn40-2
wrn40-1
resnet56
resnet20
resnet32x4
resnet8x4
vgg13
vgg8
Teacher
Student
76.46
73.64
76.46
72.24
73.44
69.63
79.63
72.51
75.38
70.68
KD 74.92 73.54 70.66 73.33 72.98
FitNet 75.75 74.12 71.60 74.31 73.54
AT 75.28 74.45 71.78 74.26 73.62
SP 75.34 73.15 71.48 74.74 73.44
VID 74.79 74.20 71.71 74.82 73.96
RKD 75.40 73.87 71.48 74.47 73.72
PKT 76.01 74.40 71.44 74.17 73.37
AB 68.89 75.06 71.49 74.45 74.27
FT 75.15 74.37 71.52 75.02 73.42
CRD 76.04 75.52 71.68 75.90 74.06
SSKD 76.04 76.13 71.49 76.20 75.33

Cross-Architecture

Teacher
Student
vgg13
MobieleNetV2
ResNet50
MobileNetV2
ResNet50
vgg8
resnet32x4
ShuffleV1
resnet32x4
ShuffleV2
wrn40-2
ShuffleV1
Teacher
Student
75.38
65.79
79.10
65.79
79.10
70.68
79.63
70.77
79.63
73.12
76.46
70.77
KD 67.37 67.35 73.81 74.07 74.45 74.83
FitNet 68.58 68.54 73.84 74.82 75.11 75.55
AT 69.34 69.28 73.45 74.76 75.30 75.61
SP 66.89 68.99 73.86 73.80 75.15 75.56
VID 66.91 68.88 73.75 74.28 75.78 75.36
RKD 68.50 68.46 73.73 74.20 75.74 75.45
PKT 67.89 68.44 73.53 74.06 75.18 75.51
AB 68.86 69.32 74.20 76.24 75.66 76.58
FT 69.19 69.01 73.58 74.31 74.95 75.18
CRD 68.49 70.32 74.42 75.46 75.72 75.96
SSKD 71.53 72.57 75.76 78.44 78.61 77.40

Citation

If you find this repo useful for your research, please consider citing the paper

@inproceedings{xu2020knowledge,
    title={Knowledge Distillation Meets Self-Supervision},
    author={Xu, Guodong and Liu, Ziwei and Li, Xiaoxiao and Loy, Chen Change},
    booktitle={European Conference on Computer Vision (ECCV)},
    year={2020},
}

Acknowledgement

The implementation of models is borrowed from CRD

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[ECCV2020] Knowledge Distillation Meets Self-Supervision

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