Selective Synaptic Dampening (AAAI + ICLR TP code)

This is the code for the paper Fast Machine Unlearning Without Retraining Through Selective Synaptic Dampening (https://arxiv.org/abs/2308.07707), accepted at The 38th Annual AAAI Conference on Artificial Intelligence (Main Track).

Related research

Paper	Code	Venue/Status
Potion: Towards Poison Unlearning	GitHub	Preprint
Zero-Shot Machine Unlearning at Scale via Lipschitz Regularization	GitHub	Preprint
Parameter-Tuning-Free Data Entry Error Unlearning with Adaptive Selective Synaptic Dampening	GitHub	Preprint
Loss-Free Machine Unlearning (i.e. Label-Free) -> LFSSD	see below	ICLR 2024 Tiny Paper

Implementing LFSSD:

Replace the following in the compute_importances function(s):

# Vanilla SSD:
criterion = nn.CrossEntropyLoss()
loss = criterion(out, y)
...
imp.data += p.grad.data.clone().pow(2)

# LFSSD:
loss = torch.norm(out, p="fro", dim=1).pow(2).mean()
...
imp.data += p.grad.data.clone().abs()

Usage

All experiments can be run via

./MAIN_run_experiments.sh 0 # to run experiments on GPU 0 (nvidia-smi)

You might encounter issues with executing this file due to different line endings with Windows and Unix. Use dos2unix "filename" to fix.

Setup

You will need to train ResNet18's and Vision Transformers. Use pretrain_model.py for this and then copy the paths of the models into the respecive .sh files.

# fill in _ with your desired parameters as described in pretrain_model.py
python pretrain_model.py -net _ -dataset _ -classes _ -gpu _

We used https://hub.docker.com/layers/tensorflow/tensorflow/latest-gpu-py3-jupyter/images/sha256-901b827b19d14aa0dd79ebbd45f410ee9dbfa209f6a4db71041b5b8ae144fea5 as our base image and installed relevant packages on top.

datetime
wandb
sklearn
torch
copy
tqdm
transformers
matplotlib
scipy

You will need a wandb.ai account to use the implemented logging. Feel free to replace with any other logger of your choice.

Modifying SSD

SSD functions are in ssd.py. To change alpha and lambda, set them in the respective forget_..._main.py file per unlearning task.

Citing this work

@article{Foster_Schoepf_Brintrup_2024,
      title={Fast Machine Unlearning without Retraining through Selective Synaptic Dampening},
      volume={38},
      url={https://ojs.aaai.org/index.php/AAAI/article/view/29092},
      DOI={10.1609/aaai.v38i11.29092},
      number={11},
      journal={Proceedings of the AAAI Conference on Artificial Intelligence},
      author={Foster, Jack and Schoepf, Stefan and Brintrup, Alexandra},
      year={2024},
      month={Mar.},
      pages={12043-12051} }

Authors

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Stefan Schoepf: LinkedIn, Twitter

Alexandra Brintrup: LinkedIn

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