System Analytic Model for Natural Disasters
In this chapter, we give a fuzzy system analytic model to assess risk of natural disasters. We suppose that a natural disaster system includes risk source, site, damage and loss. In the model, information distribution technique is used to calculate basic fuzzy relationships showing the historical experience of natural disasters. In section 11.1, we review classical system model for risk assessment of natural disaster and give some definitions to standardize the concepts. In section 11.2, the method of information distribution is employed to calculate the fuzzy relationship between magnitude and probability. Section 11.3 gives fuzzy-system analytic model. In section 11.4, we use the model to study the fuzzy risk of earthquake disaster for a city. The chapter is then summarized with a conclusion in section 11.5.
KeywordsRisk Assessment Natural Disaster Information Gain Damage Index Information Distribution
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