摘要
基于熵值法,运用MATLAB软件对汶川地震36个严重受灾县市依据灾情指标进行了综合分析。首先,采用熵值法对原始数据进行分析得到了8个指标的比重、熵值和熵权以及36个县市灾情指标的综合评价值;其次,依据综合评价值对36个县市按照灾情严重程度进行了排序和分类;最后,依据综合评价值的均值化数值对36个县市进行了分类,其结果与实际基本吻合。结果显示:利用熵值法对地震灾区灾情严重性进行分析,灾情评价结果更为科学,评价结果客观地反映了实际情况,对合理援助和有效重建灾区起到积极作用。
A comprehensive analysis is conducted by entropy method via the software of MATLAB to dis-aster indicators in 36 serious disasterstricken counties and cities in the Wenchuan Earthquake. First, 8 indicators proportion, entropy ＆ entropy weight and comprehensive evaluation values of 36 counties and cities are obtained from the original data. Second, these 36 counties and cities are ranked and classified according to their comprehensive evaluation values. Finally, the 36 counties and cities are classified according to their equalization values and the outcomes are consistent with the real situation. The result shows that it is more scientific and objective to analyze the disaster using entropy method, which contributes to the effective aids and rebuilding work in disaster areas.
作者
陈丽
CHEN Li(College of Engineering,Dali University, Dali, Yunnan 671003 , China)
出处
《昆明冶金高等专科学校学报》
CAS
2017年第1期61-66,共6页
Journal of Kunming Metallurgy College
基金
国家自然科学基金:地震波传播的高阶NAD算法及波场模拟研究(41464004)
云南省教育厅科学研究基金重点项目:高精度底数值频散的保辛离散方法及地震波场模拟研究(2013Z15z)
关键词
汶川地震
灾情指标
综合评价
熵值法
均值化方法
the Wenchuan Earthquake
disaster indicators
comprehensive evaluation
entropy method
equalization
