This repo covers the implementation of the following NeurIPS 2020 paper:

Agree to Disagree: Adaptive Ensemble Knowledge Distillation in Gradient Space

This repo was tested with Python 3.5, PyTorch 1.0.0, and CUDA 9.0.

1. Train multiple teacher models by:

   sh train_cifar100.sh [seed]

   where specifies a random seed.

   Write your teacher directory in setting.py.

2. Run distillation by following commands

   python3 train_student.py --distill --dataset --model_s \
   	-r -a -b -C --trial --teacher_num --ensemble_method

   where the flags are explained as:

   • --distill: specify the distillation method, e.g. kd, hint
   • --dataset: specify the dataset, e.g. cifar10, cifar100
   • --model_s: specify the student model, see 'models/__init__.py' to check the available model types.
   • -r: the weight of the cross-entropy loss between logit and ground truth, default: 1
   • -a: the weight of the KD loss, default: 0.9
   • -b: the weight of other distillation losses, default: 100
   • -C: specify the tolerance parameter, default: 0.6
   • --trial: specify the experimental id to differentiate between multiple runs, default: 1
   • --teacher_num: specify the ensemble size (number of teacher models)
   • --ensemble_method: specify the ensemble_method, e.g. AVERAGE_LOSS,AEKD

Therefore, the command for running AE-KD for student model ResNet18 is something like:

python train_multiTeacher.py --distill kd --dataset cifar100 \
	--model_s ResNet18 -r 1 -a 0.9 -b 0 \
  	--teacher_num 5 --ensemble_method AEKD

This repo is built upon Repdistiller.

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

@article{du2020agree,
  title={Agree to Disagree: Adaptive Ensemble Knowledge Distillation in Gradient Space},
  author={Du, Shangchen and You, Shan and Li, Xiaojie and Wu, Jianlong and Wang, Fei and Qian, Chen and Zhang, Changshui},
  journal={Advances in Neural Information Processing Systems},
  volume={33},
  year={2020}
}