Abstract
The possibility-probability risk calculated using the interior-outer set model is referred to as fuzzy risk. A fuzzy expected value of the possibility-probability distribution is a set with E α(x) and \(\bar E_\alpha \)(x) as its boundaries. The fuzzy expected values E α(x) and \(\bar E_\alpha \)(x) of a possibility-probability distribution represent the fuzzy risk values being calculated. Under such an α level, three risk values can be calculated: conservative risk value, venture risk value and maximum probability risk value. As α adopts all values throughout the set [0, 1], it is possible to obtain a series of risk values. Therefore, the fuzzy risk can be a multi-valued risk or set-valued risk. Calculation of the fuzzy expected value of Yiwu city’s water resource risk has been performed based on the interior-outer set model. We can get a conservative risk value (R C ) of 800 mm for Yiwu city’s water resource risk, a venture risk value (R V ) of 1020 mm, and a maximum probability risk value (R M ) of 988 mm for the α = 0.1 level cut set.
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Feng, L.H., Luo, G.Y. Application of possibility-probability distribution in assessing water resource risk in Yiwu city. Water Resour 38, 409–416 (2011). https://doi.org/10.1134/S009780781103002X
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DOI: https://doi.org/10.1134/S009780781103002X