Evaluating survey designs for inference of Plasmodium falciparum malaria prevalence
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We present a tool designed to aid planning of community-based
Plasmodium falciparum prevalence surveys. The tool is based on a probability model featuring a
spatiotemporal Gaussian random
field and the most comprehensive contemporary P. falciparum
prevalence dataset available. It allows
users to design surveys in a simple Google Earth-based interface, then
computes updated maps of
the remaining uncertainty and predictive distributions for one or more
utility metrics given that the
surveys will be carried out. The expectation propagation algorithm
makes it possible to approximate
the required updates to the posterior in a reasonable amount of time.
This talk is part of the Statistics series.
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