TY - GEN
T1 - An inverse analysis of liquefaction triggering factors based on structural equation modeling
AU - Kojima, Hirohito
AU - Obayashi, Shigeyuki
PY - 2005/1/1
Y1 - 2005/1/1
N2 - This paper presents an inverse analysis of unobserved triggering factors for liquefaction hazard assessments based on Structural Equation Modeling (SEM). As a cross-validation on the model performance, the past occurrences of liquefaction (i.e., endogenous variables) were divided into the following two groups: i) Case 1: Reclaimed land area over old river-course; and ii) Case 2:Micro-topographic and sand-ground area. Through the above procedure, the TFI maps were produced in Case 1 and Case 2, respectively. As a final product, the differences of these TFI maps were also delineated on a "Difference map (DIF map)." As supporting and heuristic information, the DIF map and its interpretation might be useful not only for the pixel-based estimation of unobserved triggering factors, but also for improving the cost-effectiveness of locating the places for the field measuring systems in the liquefaction hazard assessments.
AB - This paper presents an inverse analysis of unobserved triggering factors for liquefaction hazard assessments based on Structural Equation Modeling (SEM). As a cross-validation on the model performance, the past occurrences of liquefaction (i.e., endogenous variables) were divided into the following two groups: i) Case 1: Reclaimed land area over old river-course; and ii) Case 2:Micro-topographic and sand-ground area. Through the above procedure, the TFI maps were produced in Case 1 and Case 2, respectively. As a final product, the differences of these TFI maps were also delineated on a "Difference map (DIF map)." As supporting and heuristic information, the DIF map and its interpretation might be useful not only for the pixel-based estimation of unobserved triggering factors, but also for improving the cost-effectiveness of locating the places for the field measuring systems in the liquefaction hazard assessments.
UR - http://www.scopus.com/inward/record.url?scp=84902492735&partnerID=8YFLogxK
M3 - Conference contribution
AN - SCOPUS:84902492735
SN - 0973422025
SN - 9780973422023
T3 - GIS and Spatial Analysis - 2005 Annual Conference of the International Association for Mathematical Geology, IAMG 2005
SP - 1302
EP - 1310
BT - GIS and Spatial Analysis - 2005 Annual Conference of the International Association for Mathematical Geology, IAMG 2005
PB - IAMG 2005 Conference Secretariat
T2 - 2005 Annual Conference of the International Association for Mathematical Geology: GIS and Spatial Analysis, IAMG 2005
Y2 - 21 August 2005 through 26 August 2005
ER -