Displaying results 1 - 4 of 4
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Delineating Spatial Clusters with Artificial Neural Networks
Content Type: Abstract
Multiple or irregularly shaped spatial clusters are often found in disease or syndromic surveillance maps. We develop a novel method to delineate the contours of spatial clusters, especially when there is not a clearly dominating primary cluster,… read more… cluster, through artificial neural networks. The method may be applied either for maps divided into regions or point … cluster, through artificial neural networks. The method may be ap- plied either for maps divided into regions or … A Spatial Scan Statistic, Comm. Statist. Theory Meth., 26(6), 1481-1496. [2] M. H. Fun and M.T. Hagan, 1996. … -
Spatial cluster detection through constrained dynamic programming
Content Type: Abstract
The spatial scan statistic [1] is the most used measure for cluster strenght. The evaluation of all possible subsets of regions in a large dataset is computationally infeasible. Many heuristics have appeared recently to compute approximate values… read more… irregularly spatial cluster; however, the solution may not be connected. The spatial cluster detection problem … irregularly spatial cluster; however, the solution may not be connected. The spatial cluster detection problem … M. A spatial scan statistic. Commun Stat Theor Meth. 1997;26:1481�96. 2. Neill DB. Fast and flexible outbreak … -
Dual Graph Spatial Cluster Detection for Syndromic Surveillance in Networks
Content Type: Abstract
Early warning systems must not always rely on geographical proximity for modeling the spread of contagious diseases. Instead, graph structures such as airways or social networks are more adequate in those situations. Nodes,… read more… of the dual graph scan. CONCLUSIONS The dual graph scan may be a useful tool for de- tection and inference of … A Spatial Scan Statistic, Comm. Statist. Theory Meth., 26(6), 1481-1496. [2] Duczmal L, Ferreira SJ, 2007. Weak … -
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 …