English

Wrapped Distributions on homogeneous Riemannian manifolds

Statistics Theory 2022-04-22 v1 Machine Learning Machine Learning Other Statistics Statistics Theory

Abstract

We provide a general framework for constructing probability distributions on Riemannian manifolds, taking advantage of area-preserving maps and isometries. Control over distributions' properties, such as parameters, symmetry and modality yield a family of flexible distributions that are straightforward to sample from, suitable for use within Monte Carlo algorithms and latent variable models, such as autoencoders. As an illustration, we empirically validate our approach by utilizing our proposed distributions within a variational autoencoder and a latent space network model. Finally, we take advantage of the generalized description of this framework to posit questions for future work.

Keywords

Cite

@article{arxiv.2204.09790,
  title  = {Wrapped Distributions on homogeneous Riemannian manifolds},
  author = {Fernando Galaz-Garcia and Marios Papamichalis and Kathryn Turnbull and Simon Lunagomez and Edoardo Airoldi},
  journal= {arXiv preprint arXiv:2204.09790},
  year   = {2022}
}

Comments

34 pages, 9 figures. arXiv admin note: text overlap with arXiv:1804.00891 by other authors