English

UltraNest -- a robust, general purpose Bayesian inference engine

Computation 2021-04-08 v2 Instrumentation and Methods for Astrophysics

Abstract

UltraNest is a general-purpose Bayesian inference package for parameter estimation and model comparison. It allows fitting arbitrary models specified as likelihood functions written in Python, C, C++, Fortran, Julia or R. With a focus on correctness and speed (in that order), UltraNest is especially useful for multi-modal or non-Gaussian parameter spaces, computational expensive models, in robust pipelines. Parallelisation to computing clusters and resuming incomplete runs is available.

Keywords

Cite

@article{arxiv.2101.09604,
  title  = {UltraNest -- a robust, general purpose Bayesian inference engine},
  author = {Johannes Buchner},
  journal= {arXiv preprint arXiv:2101.09604},
  year   = {2021}
}

Comments

Longer version of the paper published in JOSS. UltraNest can be found at https://johannesbuchner.github.io/UltraNest/

R2 v1 2026-06-23T22:27:31.317Z