Title :
Regional landslide hazard assessment based on rough set
Author :
Yanhua, Liu ; Guohua, Ye ; Weiqing, Chen
Author_Institution :
Fac. of Resource & Environ. Sci., Guangxi Teachers Coll., Nanning, China
Abstract :
With rough set theory, the study area is divided into regular grid cells, landslide hazard assessment indexes system and geohazards knowledge representation system and decision table in study area are designed. On this basis, specific algorithms for assessment indexes system optimization and weights confirmation are constructed. So that landslide hazard quantitative scores are calculated,and landslide hazard gradation is classified, that is, high hazard, medium hazard, low hazard and very low hazard four grades. To achieve visualization of assessment results,GIS is used to accomplish zoning mapping. Comparison by information content model and field survey, the results of assessment are verified correct.
Keywords :
decision tables; geographic information systems; geomorphology; geophysics computing; hazards; knowledge representation; optimisation; rough set theory; GIS; assessment indexes system optimization; geohazards knowledge representation system; grid cell; information content model; landslide hazard assessment indexes system; landslide hazard gradation; rough set theory; weights confirmation; zoning mapping; Cities and towns; Geology; Indexes; Rail transportation; Road transportation; Visualization; GIS; geologic hazard; hazard assessment; landslide; rough set;
Conference_Titel :
Intelligent Computing and Intelligent Systems (ICIS), 2010 IEEE International Conference on
Conference_Location :
Xiamen
Print_ISBN :
978-1-4244-6582-8
DOI :
10.1109/ICICISYS.2010.5658796
