Model Selection for Bayesian Autoencoders

Code for the paper "Model Selection for Bayesian Autoencoders".

The code is under refactoring, feel free to contact me via email ([email protected]) if you have any issues or questions.

Dependencies

Run the following command to install necessary python packages for our code

pip3 install -r requirements.txt

Data

MNIST

• The MNIST dataset is already supported by the torchvision.datasets package.

Frey-Yale

• The pre-processed Frey and Yale datasets are located in the directories datasets/FreyFaces and datasets/YaleFaces, respectively.

CelebA

• Please download the aligned CelebA dataset at here, which includes two files: img_align_celeba.zip and list_eval_partition.txt.
• Then, extract the file img_align_celeba.zip under the directory datasets/celeba/raw. The file list_eval_partition.txt also should be located in this directory.

Examples

Here are a few examples to run the BAE model with optimized prior on various datasets:

MNIST

python3 experiments/bae_conv_mnist.py \
    --seed=1 \
    --out_dir="./exp/conv_mnist/bae_latent_50_train_200_prior_optim" \
    --prior_dir="./exp/conv_mnist/prior" \
    --samples_per_class=10 \
    --train="True" \
    --prior_type="optim" \
    --training_size=200 \
    --latent_size=50 \
    --optimize_prior="True" \
    --batch_size=64 \
    --n_iters_prior=2000 \
    --lr=0.003 \
    --mdecay=0.05 \
    --num_burn_in_steps=2000 \
    --n_mcmc_samples=32 \
    --keep_every=1000 \
    --only_zero="True" \
    --iter_start_collect=6000

Frey-Yale

python3 experiments/bae_conv_face.py \
    --seed=1 \
    --out_dir="./exp/conv_face/bae_latent_50_zero_train_500_prior_optim" \
    --prior_dir="./exp/conv_face/prior" \
    --n_epochs_pretrain=200 \
    --prior_type="optim" \
    --training_size=500 \
    --latent_size=50 \
    --optimize_prior="True" \
    --batch_size=64 \
    --n_iters_prior=2000 \
    --lr=0.003 \
    --mdecay=0.05 \
    --num_burn_in_steps=2000 \
    --n_mcmc_samples=32 \
    --keep_every=1000 \
    --iter_start_collect=6000

CelebA

python3 experiments/bae_conv_celeba.py \
    --seed=1 \
    --out_dir="./exp/conv_celeba/bae_latent_50_train_1000_prior_optim" \
    --prior_dir="./exp/conv_celeba/prior" \
    --prior_type="optim" \
    --train="True" \
    --training_size=1000 \
    --latent_size=50 \
    --optimize_prior="True" \
    --batch_size=64 \
    --n_iters_prior=2000 \
    --lr=0.003 \
    --mdecay=0.05 \
    --num_burn_in_steps=5000 \
    --n_mcmc_samples=32 \
    --keep_every=2000 \
    --iter_start_collect=20000

Notebooks

• We provide some jupyter notebooks used to visualize the results. These notebooks can be found in the directory notebooks.

Citation

When using this repository in your work, please consider citing our paper

@inproceedings{Tran2021,
  author    = {Tran, Ba-Hien and Rossi, Simone and Milios, Dimitrios and Michiardi, Pietro and Bonilla, Edwin V and Filippone, Maurizio},
  booktitle = {Advances in Neural Information Processing Systems},
  pages     = {19730--19742},
  publisher = {Curran Associates, Inc.},
  title     = {{Model Selection for Bayesian Autoencoders}},
  volume    = {34},
  year      = {2021}
}