GSOC 2025 Proposed Projects

Please list your proposal here.

loo package:

The loo package is one of most used packages for cross-validation of Bayesian models and is an integral part of the Stan ecosystem. It has over 3 million downloads and several thousand citations. As advancements are made and new methods are developed, it is important that the loo package stays up to date. This project would add new validation methods and diagnostics, and improve the usability of existing functions to create a unified interface for all the implemented measures of model evaluation. Time required: 350h Contact: Aki Vehtari, Noa Kallioinen, Jonah Gabry

bayesplot package:

The bayesplot package is part of the Stan ecosystem and widely used for visualizing the results of Bayesian inference. The package has 2 million downloads and over one thousand citations. This project would add new visualisations, especially for predictive checks of discrete and categorical outcomes, as well as keep the documentation of the package updated to ensure low barrier for future contributions. Time required: 350h Contact: Aki Vehtari, Noa Kallioinen, Jonah Gabry