Data generator for hierarchically modeling strongly-lensed systems with Bayesian neural networks
Training data generator for hierarchically modeling strong lenses with Bayesian neural networks
- You'll need a Fortran compiler, which you can get on a debian system by running
sudo apt-get install gfortran
- Virtual environments are strongly recommended, to prevent dependencies with conflicting versions. Create a conda virtual environment and activate it.
conda create -n baobab python=3.6 -y conda activate baobab
- Now do one of the following.
Option 2(a): clone the repo (please do this if you'd like to contribute to the development).
git clone https://github.com/jiwoncpark/baobab.git cd baobab pip install -e .
Option 2(b): pip install the release version (only recommended if you're a user).
pip install baobab
- (Optional) To run the notebooks, add the Jupyter kernel.
python -m ipykernel install --user --name baobab --display-name "Python (baobab)"
- Choose your favorite config file among the templates in the
configsdirectory and copy it to a directory of your choice, e.g.
mkdir my_config_collection cp baobab/configs/tdlmc_diagonal_config.py my_config_collection/my_config.py
Customize it! You might want to change the
namefield first with something recognizable. Pay special attention to the
componentsfield, which determines which components of the lensed system (e.g. lens light, AGN light) become sampled from relevant priors and rendered in the image.
Generate the training set, e.g. continuing with the example in #1,
n_data (size of training set) value is specified in the config file, you may choose to override it in the command line, as in
generate my_config_collection/my_config.py 100
Please message @jiwoncpark with any questions.
There is an ongoing document that details our BNN prior choice, written and maintained by Ji Won.
Download the file for your platform. If you're not sure which to choose, learn more about installing packages.
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