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基于未确知测度理论的区域灾害风险评价

Keywords: 灾害风险,未确知测度,置信度识别准则,熵权

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Abstract:

为了评价区域灾害风险,降低评价过程中的不确定性影响因素,本文基于未确知测度理论,建立了区域灾害风险等级评价和排序模型.分别利用等权和熵计算各影响因素的指标权重,依照置信度识别准则进行等级判定,评价区域灾害风险,并将该方法应用于重庆市40个区域的灾害风险评价.研究结果表明:该模型可综合考虑各种不确定性因素,使得区域灾害风险评价结果更科学合理.

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