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Mitigating Memorization of Noisy Labels via Regularization between Representations

This code is a PyTorch implementation of the paper "Mitigating Memorization of Noisy Labels via Regularization between Representations" accepted to ICLR 2023. The code is run on the Tesla V-100.

Prerequisites

Python 3.8.5

PyTorch 1.7.1

Torchvision 0.9.0

Guideline

Downloading dataset:

Download the dataset from http://www.cs.toronto.edu/~kriz/cifar.html Put the dataset on data/

Get a SSL pre-trained model:

Run command below:

python main.py --batch_size 512 --epochs 1000 

Or download the pre-trained model from "this url" and put the pre-trained model in results/

CE with fixed encoder on symm. label noise:

Run command below:

python CE.py --simclr_pretrain --finetune_fc_only --noise_type symmetric --noise_rate 0.6 --epochs 150 

CE with fixed encoder on instance label noise (with down-sampling):

Run command below:

python CE.py --simclr_pretrain --down_sample --finetune_fc_only --noise_type instance --noise_rate 0.6 --epochs 150 

CE with regularizer on symm. label noise (random initialization):

Run command below:

python CE_Reg.py --reg rkd_dis --noise_type symmetric --noise_rate 0.6 --epochs 150 

GCE without regularizer on symm. label noise (random initialization):

Run command below:

python GCE.py  --noise_type symmetric --noise_rate 0.6 --epochs 150 

GCE with regularizer on symm. label noise (random initialization):

Run command below:

python GCE_Reg.py  --reg rkd_dis --noise_type symmetric --noise_rate 0.6 --epochs 150 

CIFAF100

For CIFAR100, we use warmup to first get a better encoder when applying each method. "--base" indicates running method without regularizer. For example, To run GCE without regularizer:

python GCE_C100.py  --noise_type symmetric --noise_rate 0.8 --epochs 100 --base

To run GCE with regularizer:

python GCE_C100.py  --reg rkd_dis --noise_type symmetric --noise_rate 0.8 --epochs 100

References

The code of SSL pre-training is based on https://github.com/leftthomas/SimCLR