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Stochastic Modeling and Combined Spatial Pattern Analysis of Epidemic Spreading

Authors: N. Nuttavut, W. Triampo, P. Kanthang, S. Chadsuthi, C. Modchang, D. Triampo


We present analysis of spatial patterns of generic disease spread simulated by a stochastic long-range correlation SIR model, where individuals can be infected at long distance in a power law distribution. We integrated various tools, namely perimeter, circularity, fractal dimension, and aggregation index to characterize and investigate spatial pattern formations. Our primary goal was to understand for a given model of interest which tool has an advantage over the other and to what extent. We found that perimeter and circularity give information only for a case of strong correlation– while the fractal dimension and aggregation index exhibit the growth rule of pattern formation, depending on the degree of the correlation exponent (β). The aggregation index method used as an alternative method to describe the degree of pathogenic ratio (α). This study may provide a useful approach to characterize and analyze the pattern formation of epidemic spreading

Keywords: stochastic, spatial pattern epidemics, aggregation index, fractaldimension, long-rang epidemics

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