Abstract
In applications of the weight of evidence (WofE) method, the informational redundancy in similar evidential patterns causes a significant increase in the posterior probability. Consequently, to estimate the posterior probability, combinations that pass the established conditional independence (CI) tests are considered rather than the combination of the ‘best’ information layers. This study introduces two methodological approaches to extend the WofE using a correction factor that eliminates the informational redundancy that is contained in different evidential layers. The proposed approaches allow the use of associated data in the same model without having to address issues with the constraints of the CI. The basic WofE approach that is used to estimate the weights is not changed, and only the interactions of the parameter layers and the transformation of the weights into probability values are considered. The method is applied to a real dataset that is used in a landslide susceptibility analysis on Lombok Island, Indonesia.
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Torizin, J. Elimination of informational redundancy in the weight of evidence method: an application to landslide susceptibility assessment. Stoch Environ Res Risk Assess 30, 635–651 (2016). https://doi.org/10.1007/s00477-015-1077-6
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DOI: https://doi.org/10.1007/s00477-015-1077-6