| 基于证据理论的风暴潮灾害损失评估 |
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| 引用本文： | 孙丰霖.基于证据理论的风暴潮灾害损失评估[J].热带海洋学报,2022,41(1):75-81. |
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| 作者姓名： | 孙丰霖 |
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| 作者单位： | 中国海洋大学海洋与大气学院, 山东 青岛 266100 |
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| 摘 要： | 本文提出了一种基于Dempster-Shafer证据理论的风暴潮灾害损失评估方法。鉴于风暴潮致灾过程中的不确定性, 选择合适的具有代表性指标(包括最大风暴潮增水、最大有效波高和防灾减灾能力)产生灾害损失评估的证据, 并根据所选指标和风暴潮直接经济损失之间的相关性大小确定证据权重, 最后采用改进的Murphy证据融合算法进行证据融合, 从而判断灾害损失等级。通过实证分析发现, 本文所提出的方法在判断风暴潮灾害损失等级上的正确率达到93.1%, 优于朴素贝叶斯、支持向量机、神经网络和决策树等常用方法, 同时本文方法计算简便, 且随着训练集样本量的增加, 损失评估结果可进一步精细化。
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| 关 键 词： | 风暴潮灾害 损失评估 证据理论 灾损等级 Murphy方法 |
| 收稿时间： | 2021-03-29 |
| 修稿时间： | 2021-05-13 |
Disaster loss assessment of storm surge based on Dempster-Shafer theory of evidence |
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| SUN Fenglin.Disaster loss assessment of storm surge based on Dempster-Shafer theory of evidence[J].Journal of Tropical Oceanography,2022,41(1):75-81. |
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| Authors: | SUN Fenglin |
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| Institution: | College of Oceanic and Atmospheric Sciences, Ocean University of China, Qingdao 266100, China |
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| Abstract: | A disaster loss assessment method based on the Dempster-Shafer theory of evidence for storm surge is proposed in this paper. Because of uncertainty of storm surge in the disaster process, we select representative indicators (maximum height of storm surge, significant wave height, disaster prevention and reduction ability) to produce several pieces of evidence. The weight of evidence is calculated by using correlation between indicator and direct economic loss of storm surge disaster. A modified Murphy method is used to fuse evidence from different sources to judge the disaster loss level. An example is used to show that the classification accuracy of the method used in this paper can reach 93.1%, which is better than some existing methods, such as the Naive Bayes, Support Vector Machine, Neural Network, and Decision Tree methods. In addition, the method is simple in computation, and the results of disaster loss assessment can be more detailed with increasing training samples. |
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| Keywords: | storm surge disaster loss assessment evidence theory disaster loss grade Murphy method |
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