Displaying results 1 - 2 of 2
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A Zero-Inflated Poisson Based Spatial Scan Statistic
Content Type: Abstract
The spatial scan statistic proposed by Kulldorff has been widely used in spatial disease surveillance and other spatial cluster detection applications. In one of its versions, such scan statistic was developed for inhomogeneous Poisson process… read more… Poisson process. However, the underlying Poisson process may not be suitable to properly model the data. … diseases with very low prevalence, the number of cases may be very low and zero excess may cause bias in the inferences. Lambert introduced the … of inhomogeneous Poisson processes. However, real data may present substantial departure from the underlying … -
Weighted non-connectivity for detection of irregular clusters
Content Type: Abstract
Heuristics to detect irregularly shaped spatial clusters were reviewed recently. The spatial scan statistic is a widely used measure of the strength of clusters. However, other measures may also be useful, such as the geometric compactness… read more… of the strength of clusters. However, other measures may also be useful, such as the geometric compactness … of Brasilia, Brasilia, Brazil E-mail: sabjfn@gmail.com.br Objective Irregularly shaped clusters in maps divided … of the strength of clusters.2 However, other measures may also be useful, such as the geometric compactness …