Estimating limits from Poisson counting data using Dempster--Shafer analysis
Abstract
We present a Dempster--Shafer (DS) approach to estimating limits from Poisson counting data with nuisance parameters. Dempster--Shafer is a statistical framework that generalizes Bayesian statistics. DS calculus augments traditional probability by allowing mass to be distributed over power sets of the event space. This eliminates the Bayesian dependence on prior distributions while allowing the incorporation of prior information when it is available. We use the Poisson Dempster--Shafer model (DSM) to derive a posterior DSM for the ``Banff upper limits challenge'' three-Poisson model. The results compare favorably with other approaches, demonstrating the utility of the approach. We argue that the reduced dependence on priors afforded by the Dempster--Shafer framework is both practically and theoretically desirable.
Keywords
Cite
@article{arxiv.0812.1690,
title = {Estimating limits from Poisson counting data using Dempster--Shafer analysis},
author = {Paul T. Edlefsen and Chuanhai Liu and Arthur P. Dempster},
journal= {arXiv preprint arXiv:0812.1690},
year = {2009}
}
Comments
Published in at http://dx.doi.org/10.1214/00-AOAS223 the Annals of Applied Statistics (http://www.imstat.org/aoas/) by the Institute of Mathematical Statistics (http://www.imstat.org)