Article(id=1149735927586669513, tenantId=1146029695717560320, journalId=1146031787341344770, issueId=1149735925967663173, articleNumber=1003-3033(2024)10-0017-07, orderNo=null, doi=10.16265/j.cnki.issn1003-3033.2024.10.0131, pmid=null, cstr=null, oa=null, hot=null, price=null, onlineType=0, articleFormat=0, articleType=null, articleTypeStr=null, receivedDate=1713715200000, receivedDateStr=2024-04-22, revisedDate=1721750400000, revisedDateStr=2024-07-24, acceptedDate=null, acceptedDateStr=null, onlineDate=1752048006197, onlineDateStr=2025-07-09, pubDate=1730044800000, pubDateStr=2024-10-28, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1752048006197, onlineIssueDateStr=2025-07-09, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1752048006197, creator=13701087609, updateTime=1752048006197, updator=13701087609, issue=Issue{id=1149735925967663173, tenantId=1146029695717560320, journalId=1146031787341344770, year='2024', volume='34', issue='10', pageStart='1', pageEnd='252', issueExtLink='null', onlineDate='null', pubDate='null', beforeIssueId=null, nextIssueId=null, price=null, status=1, issueComplete=1, articleOrder=1, issueType=-1, specialIssue=0, createTime=1752048005811, creator=13701087609, updateTime=1756361993174, updator=13701087609, preIssue=null, nextIssue=null, ext={EN=IssueExt(id=1167830100474082271, tenantId=1146029695717560320, journalId=1146031787341344770, issueId=1149735925967663173, language=EN, specialIssueTitle=, coverIllustrator=, specialIssueEditor=, specialIssueAbout=), CN=IssueExt(id=1167830100478276576, tenantId=1146029695717560320, journalId=1146031787341344770, issueId=1149735925967663173, language=CN, specialIssueTitle=, coverIllustrator=, specialIssueEditor=, specialIssueAbout=)}, issueFiles=null}, startPage=17, endPage=23, ext={EN=ArticleExt(id=1149735927892853708, articleId=1149735927586669513, tenantId=1146029695717560320, journalId=1146031787341344770, language=EN, title=GWO-BP-based forecasting of emergency material demand in post-earthquake transitional resettlement phase, columnId=1149733271128420907, journalTitle=China Safety Science Journal, columnName=Safety social science and safety management, runingTitle=null, highlight=null, articleAbstract=

In order to accurately predict the material demand in the transitional resettlement stage of earthquakes and improve the efficiency and accuracy of emergency material mobilization,the factors that have a great impact on the number of resettled population were determined based on the historical seismic data in China. A prediction model of the resettled population based on GWO-BP was established,which combined with the quantitative relationship between the population and emergency supplies,to predict the material demand in the transitional resettlement stage after the earthquake. The experimental results show that the GWO-BP neural network model exhibits high accuracy and stability in predicting the number of relocated populations,and can effectively predict the number of relocated populations in disaster areas,thereby calculating the corresponding material demand. GWO-BP neural network model has a certain application value in predicting material demand in post-earthquake transitional resettlement stage,and can provide a reference for the decision-making of emergency material procurement after the earthquake.

, correspAuthors=Chunxin CHENG, authorNote=null, correspAuthorsNote=null, copyrightStatement=null, copyrightOwner=null, extLink=null, articleAbsUrl=null, sourceXml=null, magXml=null, pdfUrl=null, pdf=null, pdfFileSize=null, pdfExtLink=null, richHtmlUrl=null, mobilePdfUrl=null, reviewReport=null, pdfFirstPage=null, abstractGraph=null, abstractGraphContent=null, abstractVideo=null, citation=null, cebUrl=null, magXmlContent=null, mapNumber=null, authorCompany=null, fund=null, authors=null, authorsList=Wei ZHAN, Chunxin CHENG), CN=ArticleExt(id=1149735935241273359, articleId=1149735927586669513, tenantId=1146029695717560320, journalId=1146031787341344770, language=CN, title=基于GWO-BP的震后过渡安置阶段应急物资需求预测, columnId=1149733271296193071, journalTitle=中国安全科学学报, columnName=安全社会科学与安全管理, runingTitle=null, highlight=null, articleAbstract=

为精准预测地震灾区过渡性安置阶段的物资需求量,提高应急物资筹措的效率和准确性,收集我国历史地震数据信息,确定对转移安置人口数目影响较大的因素,建立基于灰狼优化算法(GWO)和反向传播(BP)神经网络的安置人口预测模型,结合人口与应急物资间的数量关系,对震后过渡性安置阶段的物资需求量进行预测。结果表明: GWO-BP神经网络模型在预测转移安置人口方面,表现出较高的准确率和稳定性,能有效预测灾区安置人口数量,进而推算出相应的物资需求量。GWO-BP神经网络模型在震后过渡安置阶段的物资需求预测方面具有一定的有效性,能为震后应急物资的筹措决策提供参考。

, correspAuthors=程春鑫, authorNote=null, correspAuthorsNote=
** 程春鑫(1996—),男,河南安阳人,硕士研究生,研究方向为应急管理、项目管理等。E-mail:
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詹 伟 (1973—),男,河南郑州人,博士,副教授,主要从事应急管理、工程与项目管理、风险管理、价值管理等方面的研究。E-mail:

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詹 伟 (1973—),男,河南郑州人,博士,副教授,主要从事应急管理、工程与项目管理、风险管理、价值管理等方面的研究。E-mail:

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詹 伟 (1973—),男,河南郑州人,博士,副教授,主要从事应急管理、工程与项目管理、风险管理、价值管理等方面的研究。E-mail:

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Research on the methods of determining the number of hidden nodes in three-layer bp neural network[J]. Computer and Information Technology, 2017, 25(5): 29-33., articleTitle=Research on the methods of determining the number of hidden nodes in three-layer bp neural network, refAbstract=null), Reference(id=1167812149926703271, tenantId=1146029695717560320, journalId=1146031787341344770, articleId=1149735927586669513, doi=null, pmid=null, pmcid=null, year=2001, volume=23, issue=1, pageStart=69, pageEnd=76, url=null, language=null, rfNumber=[18], rfOrder=29, authorNames=聂高众, 高建国, 苏桂武, journalName=资源科学, refType=null, unstructuredReference=聂高众, 高建国, 苏桂武, 等. 地震应急救助需求的模型化处理:来自地震震例的经验分析[J]. 资源科学, 2001, 23(1): 69-76., articleTitle=地震应急救助需求的模型化处理:来自地震震例的经验分析, refAbstract=null), Reference(id=1167812149985423529, tenantId=1146029695717560320, journalId=1146031787341344770, articleId=1149735927586669513, doi=null, pmid=null, pmcid=null, year=2001, volume=23, issue=1, pageStart=69, pageEnd=76, url=null, language=null, rfNumber=[18], rfOrder=30, authorNames=NIE Gaozhong, GAO Jianguo, SU Guiwu, journalName=Resources Science, refType=null, unstructuredReference=NIE Gaozhong, GAO Jianguo, SU Guiwu, et al. 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province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=1 School of Emergency Management Science and Engineering,University of Chinese Academy of Sciences,Beijing 100049,China), AuthorCompanyExt(id=1167812143270342663, tenantId=1146029695717560320, journalId=1146031787341344770, articleId=1149735927586669513, companyId=1167812143232593925, language=CN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=1 中国科学院大学 应急管理科学与工程学院,北京 100049)]), AuthorCompany(id=1167812143446503434, tenantId=1146029695717560320, journalId=1146031787341344770, articleId=1149735927586669513, xref=2, ext=[AuthorCompanyExt(id=1167812143454892042, tenantId=1146029695717560320, journalId=1146031787341344770, articleId=1149735927586669513, companyId=1167812143446503434, language=EN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=2 School of Engineering Science,University of Chinese 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journalId=1146031787341344770, articleId=1149735927586669513, language=EN, label=Fig.2, caption=Related factors of earthquake casualties[16], figureFileSmall=Zu57vJXGWeJnY3oG4W3BzA==, figureFileBig=VmIlEoWswddXjr9QggvK3g==, tableContent=null), ArticleFig(id=1167812145824673849, tenantId=1146029695717560320, journalId=1146031787341344770, articleId=1149735927586669513, language=CN, label=图2, caption=地震人员损失相关要素[16], figureFileSmall=Zu57vJXGWeJnY3oG4W3BzA==, figureFileBig=VmIlEoWswddXjr9QggvK3g==, tableContent=null), ArticleFig(id=1167812145887588412, tenantId=1146029695717560320, journalId=1146031787341344770, articleId=1149735927586669513, language=EN, label=Fig.3, caption=Hidden layer node count training results, figureFileSmall=BQDpHJO05lTVTxqOWqVjBA==, figureFileBig=CqD+5SsCWzzUk4kLGVRVeQ==, tableContent=null), ArticleFig(id=1167812146051166271, tenantId=1146029695717560320, journalId=1146031787341344770, articleId=1149735927586669513, language=CN, label=图3, caption=隐藏层节点数训练结果, 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tenantId=1146029695717560320, journalId=1146031787341344770, articleId=1149735927586669513, language=CN, label=图5, caption=对比结果, figureFileSmall=kytziMk1qr92ynXrjDkNfw==, figureFileBig=Oc3NvKSeHQQGGjIRE0Q9Mw==, tableContent=null), ArticleFig(id=1167812146478985288, tenantId=1146029695717560320, journalId=1146031787341344770, articleId=1149735927586669513, language=EN, label=Table 1, caption=

Earthquake-related data

, figureFileSmall=null, figureFileBig=null, tableContent=
序号 地点 震级 发生时间 设防烈度 破坏烈度 住房捣
毁/间
预报水平 人口密度/
(人·km-2)
受灾人
口/人
1 河北唐山 7.9 2 5 7 656 136 2 11 000 2 300 000
2 云南丽江 7 1 7 8 959 000 2 11 1 075 000
3 云南宁洱 6.4 2 9 4 360 000 2 73 186 000
4 四川攀枝花 6.4 2 9 4 365 120 3 102 103 055
5 西藏拉萨 6.1 1 7 8 7 466 3 121 130 300
6 青海玉树 7.1 1 7 4 3 805 1 7 201 955
7 四川雅安 7 1 7 4 910 2 122 152 001
8 云南鲁甸 6.5 1 7 4 900 1 265 108 8400
9 新疆和田 7.3 1 7 4 13 662 1 4 455 570
10 四川宜宾 6 1 6 6 30 655 1 340 243 881
11 四川宜宾 4.5 2 6 5 90 1 344 83 000
12 西藏林芝 6.9 1 7 8 3 000 1 1 12 000
13 新疆精河 6.6 1 7 8 5 469 1 12 10 500
14 四川九寨沟 7 1 8 9 73 671 1 3 000 176 492
15 新疆阿克陶 6.7 1 7 9 571 1 7 2 546
16 西藏当雄 6.6 1 7 8 200 000 1 320 870 000
17 四川攀枝花 6.1 1 7 8 7 455 3 121 130 311
18 四川凉山 6.1 1 7 8 36 500 3 101 103 054
19 云南姚安 6.5 1 7 7 31 932 1 19 995 000
20 四川小金 6.6 1 7 9 86 1 50 120 000
21 云南澜沧 7.6 1 7 9 1 858 800 3 49 2 500 000
22 云南普洱 6.8 1 7 9 40 500 2 104 53 6000
23 四川炉霍 7.9 1 7 10 18 567 3 6 1 500 000
24 山西阳高 5.6 2 7 7 5 670 3 6 800 49 064
25 新疆伽师 6.8 1 8 7 7 880 3 11 445 660
26 云南漾濞 6.4 2 8 8 341 700 2 56 96 000
27 甘肃漳县 6.6 1 7 7 320 000 2 189 603 139
), ArticleFig(id=1167812146575454285, tenantId=1146029695717560320, journalId=1146031787341344770, articleId=1149735927586669513, language=CN, label=表1, caption=

地震相关数据

, figureFileSmall=null, figureFileBig=null, tableContent=
序号 地点 震级 发生时间 设防烈度 破坏烈度 住房捣
毁/间
预报水平 人口密度/
(人·km-2)
受灾人
口/人
1 河北唐山 7.9 2 5 7 656 136 2 11 000 2 300 000
2 云南丽江 7 1 7 8 959 000 2 11 1 075 000
3 云南宁洱 6.4 2 9 4 360 000 2 73 186 000
4 四川攀枝花 6.4 2 9 4 365 120 3 102 103 055
5 西藏拉萨 6.1 1 7 8 7 466 3 121 130 300
6 青海玉树 7.1 1 7 4 3 805 1 7 201 955
7 四川雅安 7 1 7 4 910 2 122 152 001
8 云南鲁甸 6.5 1 7 4 900 1 265 108 8400
9 新疆和田 7.3 1 7 4 13 662 1 4 455 570
10 四川宜宾 6 1 6 6 30 655 1 340 243 881
11 四川宜宾 4.5 2 6 5 90 1 344 83 000
12 西藏林芝 6.9 1 7 8 3 000 1 1 12 000
13 新疆精河 6.6 1 7 8 5 469 1 12 10 500
14 四川九寨沟 7 1 8 9 73 671 1 3 000 176 492
15 新疆阿克陶 6.7 1 7 9 571 1 7 2 546
16 西藏当雄 6.6 1 7 8 200 000 1 320 870 000
17 四川攀枝花 6.1 1 7 8 7 455 3 121 130 311
18 四川凉山 6.1 1 7 8 36 500 3 101 103 054
19 云南姚安 6.5 1 7 7 31 932 1 19 995 000
20 四川小金 6.6 1 7 9 86 1 50 120 000
21 云南澜沧 7.6 1 7 9 1 858 800 3 49 2 500 000
22 云南普洱 6.8 1 7 9 40 500 2 104 53 6000
23 四川炉霍 7.9 1 7 10 18 567 3 6 1 500 000
24 山西阳高 5.6 2 7 7 5 670 3 6 800 49 064
25 新疆伽师 6.8 1 8 7 7 880 3 11 445 660
26 云南漾濞 6.4 2 8 8 341 700 2 56 96 000
27 甘肃漳县 6.6 1 7 7 320 000 2 189 603 139
), ArticleFig(id=1167812146688700497, tenantId=1146029695717560320, journalId=1146031787341344770, articleId=1149735927586669513, language=EN, label=Table 2, caption=

Normalized earthquake data

, figureFileSmall=null, figureFileBig=null, tableContent=
震级 发生时间 设防烈度 破坏烈度 住房捣毁 预报水平 人口密度/(人·km-2) 受灾人口
1 1 0 0.5 0.352 959 0.5 1 0.919 918
0.735 294 0 0.5 0.666 667 0.515 902 0.5 0.000 909 0.429 419
0.558 824 1 1 0 0.193 636 0.5 0.006 546 0.073 456
0.558 824 1 1 0 0.196 391 1 0.009 183 0.040 245
0.470 588 0 0.5 0.666 667 0.003 97 1 0.010 91 0.051 154
0.764 706 0 0.5 0 0.002 001 0 0.000 546 0.079 845
0.735 294 0 0.5 0 0.000 443 0.5 0.011 001 0.059 843
0.588 235 0 0.5 0 0.000 438 0 0.024 002 0.434 784
0.823 529 0 0.5 0 0.007 304 0 0.000 273 0.181 394
0.441 176 0 0.25 0.333 333 0.016 446 0 0.030 821 0.096 632
0 1 0.25 0.166 667 0.000 215 0 0.031 185 0.032 214
0.705 882 0 0.5 0.666 667 0.001 568 0 0 0.003 785
0.617 647 0 0.5 0.666 667 0.002 896 0 0.001 0.003 185
0.735 294 0 0.75 0.833 333 0.039 589 0 0.272 661 0.069 649
0.647 059 0 0.5 0.833 333 0.000 261 0 0.000 546 0
0.617 647 0 0.5 0.666 667 0.107 555 0 0.029 003 0.347 335
0.470 588 0 0.5 0.666 667 0.003 965 1 0.010 91 0.051 158
0.470 588 0 0.5 0.666 667 0.019 591 1 0.009 092 0.040 244
0.588 235 0 0.5 0.5 0.0171 33 0 0.001 637 0.397 386
0.617 647 0 0.5 0.833 333 0 0 0.004 455 0.047 029
0.911 765 0 0.5 0.833 333 1 1 0.004 364 1
0.676 471 0 0.5 0.833 333 0.021 743 0.5 0.009 364 0.213 599
1 0 0.5 1 0.009 943 1 0.000 455 0.599 592
0.323 529 1 0.5 0.5 0.003 004 1 0.618 147 0.018 626
0.676 471 0 0.75 0.5 0.004 193 1 0.000 909 0.177 426
0.558 824 1 0.75 0.666 667 0.183 791 0.5 0.005 0.037 42
0.617 647 0 0.5 0.5 0.172 116 0.5 0.017 092 0.240 482
), ArticleFig(id=1167812146856472661, tenantId=1146029695717560320, journalId=1146031787341344770, articleId=1149735927586669513, language=CN, label=表2, caption=

归一化的地震数据

, figureFileSmall=null, figureFileBig=null, tableContent=
震级 发生时间 设防烈度 破坏烈度 住房捣毁 预报水平 人口密度/(人·km-2) 受灾人口
1 1 0 0.5 0.352 959 0.5 1 0.919 918
0.735 294 0 0.5 0.666 667 0.515 902 0.5 0.000 909 0.429 419
0.558 824 1 1 0 0.193 636 0.5 0.006 546 0.073 456
0.558 824 1 1 0 0.196 391 1 0.009 183 0.040 245
0.470 588 0 0.5 0.666 667 0.003 97 1 0.010 91 0.051 154
0.764 706 0 0.5 0 0.002 001 0 0.000 546 0.079 845
0.735 294 0 0.5 0 0.000 443 0.5 0.011 001 0.059 843
0.588 235 0 0.5 0 0.000 438 0 0.024 002 0.434 784
0.823 529 0 0.5 0 0.007 304 0 0.000 273 0.181 394
0.441 176 0 0.25 0.333 333 0.016 446 0 0.030 821 0.096 632
0 1 0.25 0.166 667 0.000 215 0 0.031 185 0.032 214
0.705 882 0 0.5 0.666 667 0.001 568 0 0 0.003 785
0.617 647 0 0.5 0.666 667 0.002 896 0 0.001 0.003 185
0.735 294 0 0.75 0.833 333 0.039 589 0 0.272 661 0.069 649
0.647 059 0 0.5 0.833 333 0.000 261 0 0.000 546 0
0.617 647 0 0.5 0.666 667 0.107 555 0 0.029 003 0.347 335
0.470 588 0 0.5 0.666 667 0.003 965 1 0.010 91 0.051 158
0.470 588 0 0.5 0.666 667 0.019 591 1 0.009 092 0.040 244
0.588 235 0 0.5 0.5 0.0171 33 0 0.001 637 0.397 386
0.617 647 0 0.5 0.833 333 0 0 0.004 455 0.047 029
0.911 765 0 0.5 0.833 333 1 1 0.004 364 1
0.676 471 0 0.5 0.833 333 0.021 743 0.5 0.009 364 0.213 599
1 0 0.5 1 0.009 943 1 0.000 455 0.599 592
0.323 529 1 0.5 0.5 0.003 004 1 0.618 147 0.018 626
0.676 471 0 0.75 0.5 0.004 193 1 0.000 909 0.177 426
0.558 824 1 0.75 0.666 667 0.183 791 0.5 0.005 0.037 42
0.617 647 0 0.5 0.5 0.172 116 0.5 0.017 092 0.240 482
), ArticleFig(id=1167812146931970138, tenantId=1146029695717560320, journalId=1146031787341344770, articleId=1149735927586669513, language=EN, label=Table 3, caption=

Earthquake disaster prediction data

, figureFileSmall=null, figureFileBig=null, tableContent=
地点 震级 发生时间 设防烈度 破坏烈度 住房捣
毁/间
预报水平 人口密度/
(人·km-2)
受灾人口/
四川九寨沟 7 1 8 9 73 671 1 3 000 176 492
), ArticleFig(id=1167812147003273309, tenantId=1146029695717560320, journalId=1146031787341344770, articleId=1149735927586669513, language=CN, label=表3, caption=

地震灾害预测数据

, figureFileSmall=null, figureFileBig=null, tableContent=
地点 震级 发生时间 设防烈度 破坏烈度 住房捣
毁/间
预报水平 人口密度/
(人·km-2)
受灾人口/
四川九寨沟 7 1 8 9 73 671 1 3 000 176 492
), ArticleFig(id=1167812147099742303, tenantId=1146029695717560320, journalId=1146031787341344770, articleId=1149735927586669513, language=EN, label=Table 4, caption=

Parameter setting

, figureFileSmall=null, figureFileBig=null, tableContent=
参数 k1 k2 k3 k4 k5 P θ
数值 2 000 1.6 1.66 0.5 1 3 1
), ArticleFig(id=1167812147217182817, tenantId=1146029695717560320, journalId=1146031787341344770, articleId=1149735927586669513, language=CN, label=表4, caption=

参数设定

, figureFileSmall=null, figureFileBig=null, tableContent=
参数 k1 k2 k3 k4 k5 P θ
数值 2 000 1.6 1.66 0.5 1 3 1
), ArticleFig(id=1167812147309457508, tenantId=1146029695717560320, journalId=1146031787341344770, articleId=1149735927586669513, language=EN, label=Table 5, caption=

Prediction results

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转移安置人数/万人 饮用水/L 食品/kg 抗生素/支 帐篷/顶 棉被/条
9.98 598 800 479 000 497 000 49 900 99 800
), ArticleFig(id=1167812147363983463, tenantId=1146029695717560320, journalId=1146031787341344770, articleId=1149735927586669513, language=CN, label=表5, caption=

预测结果

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转移安置人数/万人 饮用水/L 食品/kg 抗生素/支 帐篷/顶 棉被/条
9.98 598 800 479 000 497 000 49 900 99 800
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基于GWO-BP的震后过渡安置阶段应急物资需求预测
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詹伟 1 , 程春鑫 2, **
中国安全科学学报 | 安全社会科学与安全管理 2024,34(10): 17-23
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中国安全科学学报 | 安全社会科学与安全管理 2024, 34(10): 17-23
基于GWO-BP的震后过渡安置阶段应急物资需求预测
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詹伟1 , 程春鑫2, **
作者信息
  • 1 中国科学院大学 应急管理科学与工程学院,北京 100049
  • 2 中国科学院大学 工程科学学院,北京 100049
  • 詹 伟 (1973—),男,河南郑州人,博士,副教授,主要从事应急管理、工程与项目管理、风险管理、价值管理等方面的研究。E-mail:

通讯作者:

** 程春鑫(1996—),男,河南安阳人,硕士研究生,研究方向为应急管理、项目管理等。E-mail:
GWO-BP-based forecasting of emergency material demand in post-earthquake transitional resettlement phase
Wei ZHAN1 , Chunxin CHENG2, **
Affiliations
  • 1 School of Emergency Management Science and Engineering,University of Chinese Academy of Sciences,Beijing 100049,China
  • 2 School of Engineering Science,University of Chinese Academy of Sciences,Beijing 100049,China
出版时间: 2024-10-28 doi: 10.16265/j.cnki.issn1003-3033.2024.10.0131
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为精准预测地震灾区过渡性安置阶段的物资需求量,提高应急物资筹措的效率和准确性,收集我国历史地震数据信息,确定对转移安置人口数目影响较大的因素,建立基于灰狼优化算法(GWO)和反向传播(BP)神经网络的安置人口预测模型,结合人口与应急物资间的数量关系,对震后过渡性安置阶段的物资需求量进行预测。结果表明: GWO-BP神经网络模型在预测转移安置人口方面,表现出较高的准确率和稳定性,能有效预测灾区安置人口数量,进而推算出相应的物资需求量。GWO-BP神经网络模型在震后过渡安置阶段的物资需求预测方面具有一定的有效性,能为震后应急物资的筹措决策提供参考。

灰狼优化算法(GWO)  /  反向传播(BP)神经网络  /  地震  /  过渡安置阶段  /  应急物资  /  需求预测

In order to accurately predict the material demand in the transitional resettlement stage of earthquakes and improve the efficiency and accuracy of emergency material mobilization,the factors that have a great impact on the number of resettled population were determined based on the historical seismic data in China. A prediction model of the resettled population based on GWO-BP was established,which combined with the quantitative relationship between the population and emergency supplies,to predict the material demand in the transitional resettlement stage after the earthquake. The experimental results show that the GWO-BP neural network model exhibits high accuracy and stability in predicting the number of relocated populations,and can effectively predict the number of relocated populations in disaster areas,thereby calculating the corresponding material demand. GWO-BP neural network model has a certain application value in predicting material demand in post-earthquake transitional resettlement stage,and can provide a reference for the decision-making of emergency material procurement after the earthquake.

gray wolf optimization algorithm(GWO)  /  back propagation(BP) neural network  /  earthquake  /  transitional resettlement phase  /  emergency material  /  demand forecasting
詹伟, 程春鑫. 基于GWO-BP的震后过渡安置阶段应急物资需求预测. 中国安全科学学报, 2024 , 34 (10) : 17 -23 . DOI: 10.16265/j.cnki.issn1003-3033.2024.10.0131
Wei ZHAN, Chunxin CHENG. GWO-BP-based forecasting of emergency material demand in post-earthquake transitional resettlement phase[J]. China Safety Science Journal, 2024 , 34 (10) : 17 -23 . DOI: 10.16265/j.cnki.issn1003-3033.2024.10.0131
震后过渡性安置紧跟在初步实施应急响应措施之后,该阶段承担提供受灾人群临时住所、减少人员伤亡、及时调配应急物资满足各类需求,以及支持受灾地区恢复重建等重要工作[1]。不精准的保障方案易引起受灾群众敏感情绪,降低灾区各类人员满足度,造成部分人员人心不稳,还可能诱发一系列社会问题[2]。精准保障一方面是指形成与需求匹配的物资供给,以人民至上准则救灾保障,强调服务需求精准供给[3];另一方面是指人民对应急物资保障的效率性、公平性以及物资品质等提出更高要求[4]。现实中,过渡安置阶段人员构成不同造成需求差异,这对应急物资需求的精准预测提出更高的要求。因此,准确预测过渡性安置阶段的安置人数和应急物资需求,对于制定灾害管理方案具有重要意义。
目前,诸多学者采用人工神经网络等方法,开展灾后伤亡人数预测和应急物资需求预测。郭金芬等[5]运用反向传播(Back Propagation,BP)神经网络预测地震后伤亡人数,根据存活人数和受伤人数与不同应急物资需求量之间的数量关系,估算出应急物资需求量。刘芳等[6]运用蚁群算法优化神经网络的权值和阈值,建立基于BP神经网络的洪涝灾害下转移人口预测模型。樊睿[7]运用粒子群算法,建立基于BP神经网络的震后伤亡人数预测模型。虽然BP神经网络在伤亡人数和应急物资需求预测方面表现出良好潜力,但其网络结构选择、数据收集和处理,以及模型参数调整等因素,均会影响预测结果的准确性。
因此,笔者拟提出一种灰狼优化算法(Grey Wolf Optimizer,GWO)的BP神经网络方法,并基于该方法构建可靠模型,预测震后安置人数和应急物资需求,进而向管理者提供科学合理依据,以期有效应对震后过渡安置阶段的物资需求保障。
传统BP神经网络[8]预测结果的准确性通常难以达到预期。受灰狼群体捕食行为启发,MIRJALILI等[9]提出GWO,该算法从BP神经网络初始权值和阈值着手,通过数据训练BP神经网络后预测函数的输出,以提高BP神经网络的性能。
由于地震损失[10]是一种复杂的、非线性统计的伤害,因此,难以通过单一数学模型去预测安置避难人数。考虑安置阶段物资精准预测与保障需求,结合GWO的BP神经网络(GWO-BP),可在一定程度上提升算法速度,改进传统BP过度依赖初始权值和阈值的缺点[11]。GWO-BP算法流程如图1所示。具体步骤如下:
1) 数据准备。收集训练数据并归一化处理。
2) 构建网络结构。设置BP神经网络结构,包括输入层、隐藏层、输出层的神经元数量,初始化BP算法学习率、动量因子等参数。
3) 初始化参数。初始化GWO种群数量、迭代次数、搜索空间等参数,随机初始化灰狼群体位置和速度。
4) GWO优化。根据灰狼算法迭代次数和搜索空间,在每代更新灰狼群体位置和速度,通过模拟狼群社会等级制度和狩猎行为寻找最优解。
5) BP训练和优化。应用优化后的权值和阈值进行BP网络训练,使用BP算法不断调整参数,以降低预测误差。
6) 更新权重。根据BP算法更新规则,采用梯度下降法更新神经网络的权重和阈值。
7) 预测和评估。判断是否达到设定的迭代次数,输出结果,利用训练好的模型预测测试数据。
地震造成的人口损失和转移安置人数受地震强度影响,同时也与地震发生时间、破坏烈度、设防烈度、受灾地区人口经济情况等关联密切[13-14]。其中,地震对人口损失和转移安置人数的影响主要分为3类[15],即地震信息、建筑环境和人口特征,如图2所示。
预测指标选取与转移安置人数高度相关,经综合调研,选取以下8项因素作为影响因子:
1) 震级大小是造成地震损失的关键因素,通常震级越大,损失越大,直接影响安置人口的数量。
2) 地震发生时间影响灾区受难人数,受难人数越大,安置人口相对越多。
3) 抗震设防烈度决定该地区建筑物抗震等级,其烈度高低直接影响建筑物抗震效果及地震时可能造成的人员伤亡。
4) 破坏烈度代表地震中最高烈度,地面及建筑物破坏程度与震中烈度成正比。
5) 住房捣毁程度决定居民是否需要大范围转移安置,倒塌房屋数量越多,需安置人口越多。
6) 预报水平可间接影响经济损失与人员伤亡,更为精准预报能力可以有效减灾,在一定程度上可减少安置人口数量。
7) 人口密度直接反映震区人口的疏密程度,密度越高,受灾人数越多。
8) 受灾人口数量直接影响安置人口数量。
选取国内27次地震数据作为训练与测试样本,并将震级、地震发生时间、抗震设防烈度、破坏烈度、住房捣毁量、预报水平、人口密度、受灾人口等8项因素作为网络预测模型的输入因子。地震相关数据见表1。其中,地震发生时间中,1表示白天,2表示夜间;抗震设防烈度根据我国主要城镇抗震设防烈度表获得[9];预报水平划分为3级,1表示没有预报;2表示有预报,但预报不准确;3表示有较准确的预报。
根据《特别重大自然灾害损失统计调查制度》中“紧急转移安置人口”,确定输入神经元8个,输出层神经元1个。首先,根据BP神经网络中隐含层节点设置方法[8],确定隐含层节点数范围为5 ~ 16;然后,运用试凑法[17]依次确定最佳节点数;最后,搭建神经网络。其中,部分隐藏层节点数训练结果如图3所示。可以发现,当隐含层节点数达到11时,已达到预设的精度,而且均方误差最小(0.042)。因此,将隐含层节点数设为11,最终确定神经网络结构如图4所示。
不同量纲数据无法直接计算,因此,线性归一化处理输入数据,所有值设定范围为[0,1],处理后的数据见表2
采用随机抽样方法,将27组数据中的20组数据设定为训练集,将另外7组数据设定为测试集。设置神经网络训练中的最大迭代次数为2 500,学习率为0.01。
为检验GWO-BP神经网络模型准确性及其预测能力,对已处理的数据集进行模拟测试,将GWO-BP算法预测结果与传统BP神经网络、结合粒子群优化(Particle Swarm Optimization,PSO)的BP神经网络[7]和实际值作比较,结果如图5所示。可以发现,预测震后过渡安置阶段的安置人数时,GWO-BP神经网络输出预测结果更接近实际值。此外,对比运行结果与实际数据,GWO-BP具有9.11%的平均误差与10.2的均方误差,该值优于PSO-BP和BP神经网络输出的预测误差,具有更高的精度。
震后过渡安置阶段应急物资需求预测具有较强的时效性,因此,地震发生后,在获取地震信息时就需预测应急物资需求,从而争取物资调度时间,并根据反馈信息及时调整,以保障灾民生活。其中,明确应急物资与转移人口数量关系,可分析消耗类物资的周期性问题等,运用GWO-BP算法预测避难人口数量,进而估算应急物资需求量。
估算应急物资需求量,考虑的因素包括:
1) 物资种类。将物资分为消耗类和非消耗类物资,非消耗类应急物资包括帐篷、棉被等;消耗类物资包括应急食品、饮用水、医疗用品等。消耗类物资还需考虑供给周期问题。
2) 供给人数及人均需求。根据安置人口数量及安置人口与物资需求量间的人均需求比例,估算应急物资需求量。
3) 季节、地区受损等因素。对于不同季节和受损程度需供应物资会出现偏差,受损系数主要取决于灾区人员构成、地势、气候等因素及其承灾敏度,如在冬季,非消耗类物资需求会更高,灾区老人小孩偏多则应急物资需求增加。
结合上述因素,构建应急物资需求量模型,见下式:
S i k = C k · H i · P · θ ( k A 1 ) C k · H i · θ ( k A 2 )
式中: S i k为安置点i对第k类应急物资的需求量;k为应急物资类型; A 1为消耗物资; A 2为非消耗类应急物资; C k为每个安置人员对k类应急物资的每小时平均需求量; H i为在安置点i内的灾区安置人口数量;P为连续向灾区供给物资的间隔期; θ为地区受损系数。
该模型用于估算安置点对不同应急物资的需求量,分为2类应急物资: A 1(食品、水和医疗用品等)和 A 2(帐篷、棉被等),并考虑反映灾区人员构成、地势、气候等因素及其承灾敏度对需求量影响的 θ。在模型有效性方面,一方面,通过区分 A 1 A 2,能够更准确地反映实际需求;另一方面,考虑了更为全面的参数,包括P H i以及 θ,使模型贴近实际情况。模型在适用性方面也具有一定的优势,主要包括3点:①该模型适应于不同灾区情况。由于模型考虑了 θ,因此适用不同受灾程度、人员构成、地势、气候等因素的灾区情况,这使得模型在实际应用中具有较大灵活性;②适用于多种应急物资。模型不仅适用于消耗类物资,也适用于非消耗类物资,这反映在应对不同种类灾害时,模型都可提供有效的物资需求计算方式。③可为物资调配提供指导。通过计算安置点对应急物资需求量,可为物资调配提供科学指导,有助于确保在灾害发生时,及时、准确地调配所需物资。
利用上述模型分析四川省九寨沟地震灾害的应急物资需求情况,预测数据见表3。结合应急物资需求估算公式[18],设定模型计算参数,见表4。其中,k1为饮用水单位需求量;k2为食品单位需求量;k3为0.75 mL抗生素单位需求量;k4为中小型家用快速帐篷单位需求量;k5为棉被单位需求量。此外,设置P为3天, θ为1。采用GWO-BP算法预测紧急转移安置人数,再结合应急物资需求估算公式,最终获得震后过渡安置阶段不同种类应急物资的需求量,见表5
通过预测,需紧急转移安置人口为9.98万人,与实际值9.94万人较为接近,这反映出该模型具有一定的实用性。
1) GWO-BP神经网络模型在预测转移安置人口方面,表现出较高的准确率和稳定性,能有效预测灾区安置人口数量,进而推算出相应的物资需求量。
2) 利用震后过渡性安置阶段物资需求量模型预测发现,某地震灾害需紧急转移安置人口为9.98万人,与实际值9.94万人较为接近,说明该模型在震后过渡安置阶段的物资需求预测方面具有一定的有效性,能为震后应急物资的筹措决策提供参考。
  • 国家自然科学基金资助(72074202)
  • 中国科学院大学江海智慧安全应急联合实验室研究项目(E242980401)
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2024年第34卷第10期
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doi: 10.16265/j.cnki.issn1003-3033.2024.10.0131
  • 接收时间:2024-04-22
  • 首发时间:2025-07-09
  • 出版时间:2024-10-28
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  • 收稿日期:2024-04-22
  • 修回日期:2024-07-24
基金
国家自然科学基金资助(72074202)
中国科学院大学江海智慧安全应急联合实验室研究项目(E242980401)
作者信息
    1 中国科学院大学 应急管理科学与工程学院,北京 100049
    2 中国科学院大学 工程科学学院,北京 100049

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** 程春鑫(1996—),男,河南安阳人,硕士研究生,研究方向为应急管理、项目管理等。E-mail:
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2种不同金属材料的力学参数

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鹅膏菌科Amanitaceae 2 11 5.26 鹅膏菌属 Amanita 10 4.78
小菇科 Mycenaceae 2 12 5.74 丝盖伞属 Inocybe 5 2.39
多孔菌科 Polyporaceae 8 14 6.70 蜡蘑属 Laccaria 5 2.39
红菇科 Russulaceae 3 23 11.00 小皮伞属 Marasmius 6 2.87
小菇属 Mycena 11 5.26
光柄菇属 Pluteus 5 2.39
红菇属 Russula 17 8.13
栓菌属 Trametes 5 2.39
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