DeepSleepNet

A deep learning model for automatic sleep stage scoring based on raw, single-channel EEG.

Code for the model in the paper DeepSleepNet: a Model for Automatic Sleep Stage Scoring based on Raw Single-Channel EEG by Akara Supratak, Hao Dong, Chao Wu, Yike Guo from Data Science Institute, Imperial College London.

This work has been accepted for publication in IEEE Transactions on Neural Systems and Rehabilitation Engineering.

You can also find our accepted version before the publication in arXiv.

Environment

• Ubuntu 16.04
• MongoDB
• CUDA toolkit 8.0 and CuDNN v5
• tensorflow-gpu (0.12.1)
• tensorlayer
• matplotlib
• scikit-learn
• scipy
• eAE (optional)

Prepare dataset

We evaluated our DeepSleepNet with MASS and Sleep-EDF dataset.

For the MASS dataset, you have to request for a permission to access their dataset. For the Sleep-EDF dataset, you can run the following scripts to download SC subjects.

cd data
chmod +x download_physionet.sh
./download_physionet.sh

Then run the following script to extract specified EEG channels and their corresponding sleep stages.

python prepare_physionet.py --data_dir data --output_dir data/eeg_fpz_cz --select_ch 'EEG Fpz-Cz'
python prepare_physionet.py --data_dir data --output_dir data/eeg_pz_oz --select_ch 'EEG Pz-Oz'

Training a model

Run this script to train a DeepSleepNet model for the first fold of the 20-fold cross-validation.

python train.py --data_dir data/eeg_fpz_cz --output_dir output --n_folds 20 --fold_idx 0 --pretrain_epochs 100 --finetune_epochs 200 --resume False

You need to train a DeepSleep model for every fold (i.e., fold_idx=0...19) before you can evaluate the performance. You can use the following script to run batch training

chmod +x batch_train.sh
./batch_train.sh data/eeg_fpz_cz/ output 20 0 19 0

Scoring sleep stages

Run this script to determine the sleep stages for the withheld subject for each cross-validation fold.

python predict.py --data_dir data/eeg_fpz_cz --model_dir output --output_dir output

The output will be stored in numpy files.

Get a summary

Run this script to show a summary of the performance of our DeepSleepNet compared with the state-of-the-art hand-engineering approaches. The performance metrics are overall accuracy, per-class F1-score, and macro F1-score.

python summary.py --data_dir output

Submit the job to the eAE cluster equipped with TensorLayer

1. Setup an eAE cluster (follows the instruction in this link)
2. Setup a MongoDB
3. Change location of MongoDB in deepsleep/trainer.py
4. Modify submit_eAE.py
5. Run python submit_eAE.py

ToDo

• Release a version that does not depend on MongoDB and Tensorlayer (easier to install, but could take longer time for training).

Citation

If you find this useful, please cite our work as follows:

@article{Supratak2017,
    title = {{DeepSleepNet: a Model for Automatic Sleep Stage Scoring based on Raw Single-Channel EEG}},
    author = {Supratak, Akara and Dong, Hao and Wu, Chao and Guo, Yike},
    journal = {IEEE Transactions on Neural Systems and Rehabilitation Engineering},
    year = {2017},
    doi={10.1109/TNSRE.2017.2721116}, 
    ISSN={1534-4320}, 
}

Licence

• For academic and non-commercial use only.
• Apache License 2.0