Displaying results 1 - 3 of 3
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Significant multiple high and low risk regions in event data maps
Content Type: Abstract
The Voronoi Based Scan (VBScan)[1] is a fast method for the detection and inference of point data set space-time disease clusters. A Voronoi diagram is built for points representing population individuals (cases and controls). The number of Voronoi… read more… identifying all the multiple significant anomalies, which may be of high or low risk, thus monitoring the existence of … identifying all the multiple significant anomalies, which may be of high or low risk. Introduction The Voronoi Based … ehtj11115 ehtj11120 ehtj11024 ehtj11060 ehtj11110 26-50 ehtj11034 ehtj11198 ehtj11174 ehtj11048 ehtj11154 … -
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 … the potential cluster z. The non-connectivity penalty y(z) is a function of the number of edges e(z) and the … of Brasilia, Brasilia, Brazil E-mail: sabjfn@gmail.com.br Objective Irregularly shaped clusters in maps divided … -
A new interpretation of the inference test for the spatial scan statistic
Content Type: Abstract
Spatial cluster analysis is considered an important technique for the elucidation of disease causes and epidemiological surveillance. Kulldorff's spatial scan statistic, defined as a likelihood ratio, is the usual measure of the strength of… read more… cost of estimating the data-driven critical value may be reduced through the use of a simple interpolation. … M. A spatial scan statistic. Commun Stat Theor Meth. 1997;26:1481�96. 2. Kulldorff M, Nagarwalla N. Spatial disease … ehtj11115 ehtj11120 ehtj11024 ehtj11060 ehtj11110 26-50 ehtj11034 ehtj11198 ehtj11174 ehtj11048 ehtj11154 …