基于共现分析的历史自然灾害关联研究
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摘要
当一种自然灾害发生后,为了防止次生灾害的发生,提出了基于共现分析的自然灾害的关联研究方法。根据灾害发生的时间跨度与先后次序构造灾害的时间共现矩阵表,在Jaccard指数与归一化方法的基础上提出一种新的灾害共现率的计算方法,即CO指数,并以此计算灾害间相互引发的概率,通过灾害间的引发率构造次生灾害的危害度,为灾害预警提供决策支持。通过对9种历史灾害记录的仿真分析,验证了算法的合理性与有效性。
To prevent the occurrence of secondary disasters after a natural disaster,a correlation research method of natural disasters is proposed based on co-occurrence analysis.Firstly,time co-occurrence matrix is structured based on the time span and the order of disasters,then based on the Jaccard index and normalization method,a new calculation method of disasters co-occurrence rate is proposed,i.e.CO index,it is used to calculate the trigger rate between the disasters,the degree of the secondary disasters is built based on the trigger rate,it decision support is provided for disaster warning.At last combined the examples,the rationality and validity of this algorithms is verified by nine historical disaster records.
To prevent the occurrence of secondary disasters after a natural disaster,a correlation research method of natural disasters is proposed based on co-occurrence analysis.Firstly,time co-occurrence matrix is structured based on the time span and the order of disasters,then based on the Jaccard index and normalization method,a new calculation method of disasters co-occurrence rate is proposed,i.e.CO index,it is used to calculate the trigger rate between the disasters,the degree of the secondary disasters is built based on the trigger rate,it decision support is provided for disaster warning.At last combined the examples,the rationality and validity of this algorithms is verified by nine historical disaster records.
引文
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[2]CHEN Yang,ZHAO Yuehua,CHENG Xianyi.Automaticidentification of transliterated name based on cooccurrence fre-quency statistics of words[J].Computer Engineering and De-sign,2012,33(1):362-366(in Chinese).[陈阳,赵跃华,程显毅.基于用字共现频率统计的外国译名自动识别[J].计算机工程与设计,2012,33(1):362-366.]
[3]JIA Zhijuan,HU Mingsheng,LIU Si.Historical disaster classi-fication method based on ant colony clustering[J].Journal ofComputer Applications,2012,32(4):1030-1032(in Chi-nese).[贾志娟,胡明生,刘思.基于蚁群聚类的历史灾害分级方法[J].计算机应用,2012,32(4):1030-1032.]
[4]CHANG Peng,FENG Nan,MA Hui.Document clustering al-gorithm based on word cooccurrence[J].Computer Enginee-ring,2012,38(2):213-220(in Chinese).[常鹏,冯楠,马辉.一种基于词共现的文档聚类算法[J].计算机工程,2012,38(2):213-220.]
[5]HU Mingsheng,JIA Zhijuan,DONG Xiangying,et al.A his-torical epidemic classification method based on simulated annea-ling and ACO[J].International Journal of Advancements inComputing Technology,2011,3(11):47-54.
[6]HU Mingsheng,LV Guoning.Anticollision algorithm for RFIDbased on dynamic packet query tree[J].Advanced MaterialsResearch,2011,159(11):550-555.
[7]WU Shaochun,WU Gengfeng,WANG Wei,et al.A time-se-quence similarity matching algorithm for seismological relevantzones[J].Journal of Software,2006,17(2):185-191(inChinese).[吴绍春,吴耿峰,王炜,等.寻找地震相关地区的时间序列相似度匹配算法[J].软件学报,2006,17(2):185-191.]
[8]LIU Xinglin,ZHENG Qilun,MA Qianli.Chinese compoundword extraction algorithm based on word cooccurrence directedgraph[J].Computer Engineering,2011,37(23):177-180(in Chinese).[刘兴林,郑启伦,马千里.基于词共现有向图的中文合成词提取算法[J].计算机工程,2011,37(23):177-180.]
[9]JI Xuewei,WENG Wenguo,ZHAO Qiansheng.Quantitativedisaster chain risk analysis[J].Journal of Tsinghua Universuty(Science and Technology),2009,49(11):1749-1756(in Chi-nese).[季学伟,翁文国,赵前胜.突发事件链的定向风险分析方法[J].清华大学学报(自然科学版),2009,49(11):1749-1756.]
[10]HUANG Rui,SANG Nong,LUO Dapeng,et al.Method toevaluate image segmentation via fused perceptual consistencydegree[J].Journal of Huazhong University of Science andTechnology(Natural Science Edition),2010,38(10):52-56(in Chinese).[黄锐,桑农,罗大鹏,等.融合感知一致程度的图像分割评价方法[J].华中科技大学学报(自然科学版),2010,38(10):52-56.]
[11]HU Mingsheng,JIA Zhijuan,LIU Si.Approach for historicaldisaster correlation analysis based on ant colony optimization[J].Computer Applications and Software,2012,29(10):62-64(in Chinese).[胡明生,贾志娟,刘思.基于蚁群优化的历史灾害关联分析方法[J].计算机应用与软件,2012,29(10):62-64.]
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