“…The statistical approach, instead, is founded on the multivariate relationships between causal factors and past and present landslide occurrence. The multivariate relationships are often identified through conditional analysis (BonhamCarter et al, 1989;Carrara et al, 1995), discriminant analysis (Agterberg, 1974;Carrara, 1983;Carrara et al, 1995Carrara et al, , 2003Baeza and Corominas, 2001), linear or logistic regression (Atkinson and Massari, 1998;Guzzetti et al, 1999, and references therein; Gorsevski et al, 2000;Dai and Lee, 2003;Ohlmacher and Davis, 2003;Ayalew and Yamagishi, 2005), and artificial neural networks (Aleotti et al, 1996;Lee et al, 2001;Wang and Sassa, 2006;Falaschi et al, 2009;Pradhan and Lee, 2010).…”