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On the use of different metrics for assessing complex pattern reproductions

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  • Sandra De Iaco

Abstract

Nowadays, there is an increasing interest in multi-point models and their applications in Earth sciences. However, users not only ask for multi-point methods able to capture the uncertainties of complex structures and to reproduce the properties of a training image, but also they need quantitative tools for assessing whether a set of realizations have the properties required. Moreover, it is crucial to study the sensitivity of the realizations to the size of the data template and to analyze how fast realization-based statistics converge on average toward training-based statistics. In this paper, some similarity measures and convergence indexes, based on some physically measurable quantities and cumulants of high-order, are presented. In the case study, multi-point simulations of the spatial distribution of coarse-grained limestone and calcareous rock, generated by using three templates of different sizes, are compared and convergence toward training-based statistics is analyzed by taking into account increasing numbers of realizations.

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  • Sandra De Iaco, 2013. "On the use of different metrics for assessing complex pattern reproductions," Journal of Applied Statistics, Taylor & Francis Journals, vol. 40(4), pages 808-822.
    • Handle: RePEc:taf:japsta:v:40:y:2013:i:4:p:808-822
    DOI: 10.1080/02664763.2012.754853
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