The software for Bayesian network structure learning can be downloaded here.
Some useful software packages for graphical models can be found here.
A good R package for BN structure learning can be found here.
A library of causal discovery algorithms based on Bayesian Network learning theory: CausalExplorer.
Another package for graphical models in R: CRAN Task.
Most recent softwares for BN structure learning: GOBNILP, best-w-tree, TWILP, SparsityBoost, OpenGM.
A list of facial landmark detection and tracking code can be found here.