Weight of Evidence in Geospatial Analysis



Weight of evidence (WofE) is a quantitative method for combining evidence in support of a hypothesis. An evidence-based approach involves an assessment of the relative values of different pieces of information that have been collected in previous steps. ECHA (2010) defines WofE as “the process of considering the strengths and weaknesses of various pieces of information in reaching and supporting a conclusion.” A representative value needs to be assigned to each piece of information using a formalized weighting procedure. The evidence can be called as a factor, and can often influence the weight given owing to the quality of the data, the consistency of results, the nature and severity of effects, and the relevance of the information.


Landslide Susceptibility Landslide Susceptibility Mapping Land Change Landslide Susceptibility Index Fuzzy Probability 


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Copyright information

© Springer Japan 2012

Authors and Affiliations

  1. 1.Earth Observation Research Center, Space Applications Mission DirectorateJapan Aerospace Exploration Agency (JAXA)TsukubaJapan
  2. 2.Division of Spatial Information Science, Graduate School of Life and Environmental SciencesUniversity of TsukubaTsukubaJapan

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