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Learning Disentangled Representations via Mutual Information Estimation

Pytorch Implementation of Learning Disentangled Representations via Mutual Information Estimation (arxiv link) by Eduardo Hugo Sanchez et al.

The implementation is done in pytorch on the colored-mnist dataset.

Cmnist

The training is divided into two stages :

  • First, the shared representation is learned via cross mutual information estimation and maximization.
  • Secondly, mutual information maximization is performed to learn the exclusive representation while minimizing the mutual information between the shared and exclusive representations (using an adversarial objective).

Pipeline

Installation

git clone https://github.com/MehdiZouitine/spaghetti.git
cd Learning-Disentangled-Representations-via-Mutual-Information-Estimation/
pip install -r requirement.txt

Learn shared representation

To run the first stage of the training, one may use sdim_trainer.sh

echo Start shared representation training
data_base_folder="data"
xp_name="Share_representation_training"
conf_path="conf/share_conf.yaml"

  • data_base_folder : Is the folder where the raw mnist data is hosted. By default this folder is called "data" and the data is downloaded the first time this file is run.

  • xp_name : Mlflow experimentation name.

  • conf_path : Path to the training configuration file. To use sdim_trainer.sh the conf file must be shaped like share_conf.yaml .

Learn exclusive representation

To run the first stage of the training, one may use sdim_trainer.sh to get pretrained shared encoder and then use edim_trainer.sh.

echo Start exclusive representation training
data_base_folder="data"
xp_name="Exclusive_representation_training"
conf_path="conf/exclusive_conf.yaml"
trained_enc_x_path="mlruns/3/38e65dbd8d1246fab33f079e16510019/artifacts/sh_encoder_x/state_dict.pth"
trained_enc_y_path="mlruns/3/38e65dbd8d1246fab33f079e16510019/artifacts/sh_encoder_y/state_dict.pth"

  • data_base_folder : Is the folder where the raw mnist data is hosted. By default this folder is called "data" and the data is downloaded the first time this file is run.

  • xp_name : Mlflow experimentation name.

  • conf_path : Path to the training configuration file. To use edim_trainer.sh the conf file must be shaped like exclusive_conf.yaml.

  • trained_enc_x_path : Path the the pretrained encoder of domains X. As you can see encoders are logged in mlflow.

  • trained_enc_y_path : Path the the pretrained encoder of domains Y. As you can see encoders are logged in mlflow.

Makefile

Once the sdim_runner.sh and edim_runner.sh file are completed, the user can launch a training session using the Makefile shortcut.

share_train:
	bash sdim_runner.sh

exclusive_train:
	bash edim_runner.sh

board:
	pkill gunicorn || true
	mlflow ui
  • share_train : Train shared encoders using the sdim_runner.sh configuration.
  • exclusive_train : Train the exclusive encoders using the edim_runner.sh configuration.
  • board : Launch the mlflow monitoring windows on localhost.