نتایج جستجو برای: nested sampling techniques
تعداد نتایج: 848315 فیلتر نتایج به سال:
biological diversity and species richness have been declined throughout the world as a result of human activities. measuring species richness is important in rangeland conservation to evaluate the status and trends of native plant species, detecting non-native species invasion and monitoring rare species. however, heterogeneity in plant distribution makes inventories difficult. in this study tw...
Nested sampling (NS) computes parameter posterior distributions and makes Bayesian model comparison computationally feasible. Its strengths are the unsupervised navigation of complex, potentially multi-modal posteriors until a well-defined termination point. A systematic literature review nested algorithms variants is presented. We focus on complete algorithms, including solutions to likelihood...
distribution of infectious hematopoietic necrosis (ihn) was studied in five major provinces producing rainbow trout(oncorhynchus mykiss)fry in iran by indirect fluorescence antibody ifatand nested-rt-pcr techniques. also the effect of time duration was examined on some positive samples after 8 months post sampling. samples of kidney, liver and spleen of rainbow trout fries collected from 27 tro...
ABSTRACT It was recently emphasized that in the presence of plateaus likelihood function nested sampling (NS) produces faulty estimates evidence and posterior densities. After informally explaining cause problem, we present a modified version NS handles can be applied retrospectively to runs from popular software using anesthetic. In NS, live points plateau are evicted one by without replacemen...
Nested sampling (NS) is a popular algorithm for Bayesian computation. We investigate statistical errors in NS both analytically and numerically. show two analytic results. First, we that the leading terms Skilling's expression using information theory match Keeton's from an analysis of moments. This approximate agreement was previously only known numerically somewhat mysterious. Second, uncerta...
Abstract We review the materials science applications of nested sampling (NS) method, which was originally conceived for calculating evidence in Bayesian inference. describe how NS can be adapted to sample potential energy surface (PES) atomistic systems, providing a straightforward approximation partition function and allowing evaluation thermodynamic variables at arbitrary temperatures. After...
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