Integrating GIS Based Fuzzy Set Theory in Multicriteria Evaluation Methods for Landslide Susceptibility Mapping

摘要: In this study we employ two GIS Multicriteria Decision Analysis (MCDA) methods for Landslide Susceptibility Mapping (LSM): Analytical Hierarchy Process (AHP) and Fuzzy (FAHP). First, a classic AHP method is used to carry out LSM. applies crisp pairwise comparisons standardization techniques. second stage, fuzzy set theory integrated in the process, both weighting criteria standardization. The Triangular Numbers (TFNs) compare reduce error that inherent ranking. This achieved with Membership Functions by assessing all individually. For approaches landslide susceptibility maps are produced results validated based on information existing landslides. A particular measure validation exercise ‘Receiver Operating Characteristics’curve. Results of known landslides indicate FAHP clearly performs best. help identify strategies choosing an appropriate LSM studies and, respectively, assess reliability resulting maps.