2023/12/01 by Hu, Zixiao, Baryshnikov, Artem, Handley, Will · 2 citations
#Computation (stat.CO) #Cosmology and Nongalactic Astrophysics (astro-ph.CO) #Data Analysis #FOS: Computer and information sciences #FOS: Physical sciences #Instrumentation and Methods for Astrophysics (astro-ph.IM) #Methodology (stat.ME) #Statistics and Probability (physics.data-an)
paper · doi:10.48550/arxiv.2312.00294
This paper presents analytic results on the anatomy of nested sampling, from which a technique is developed to estimate the run-time of the algorithm that works for any nested sampling implementation. We test these methods on both toy models and true cosmological nested sampling runs. The method gives an order-of-magnitude prediction of the end point at all times, forecasting the true endpoint within standard error around the halfway point.
unimpeded: A Public Grid of Nested Sampling Chains for Cosmological Model Comparison and Tension Analysis