Article(id=1241023848359973311, tenantId=1146029695717560320, journalId=1227665162245664772, issueId=1241023847537897695, articleNumber=null, orderNo=null, doi=10.20043/j.cnki.MPM.202407206, pmid=null, cstr=null, oa=null, hot=null, price=null, onlineType=0, articleFormat=0, articleType=null, articleTypeStr=null, receivedDate=1720627200000, receivedDateStr=2024-07-11, revisedDate=null, revisedDateStr=null, acceptedDate=null, acceptedDateStr=null, onlineDate=1773812742556, onlineDateStr=2026-03-18, pubDate=1737734400000, pubDateStr=2025-01-25, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1773812742556, onlineIssueDateStr=2026-03-18, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1773812742556, creator=13701087609, updateTime=1773812742556, updator=13701087609, issue=Issue{id=1241023847537897695, tenantId=1146029695717560320, journalId=1227665162245664772, year='2025', volume='52', issue='2', pageStart='193', pageEnd='384', issueExtLink='null', onlineDate='null', pubDate='null', beforeIssueId=null, nextIssueId=null, price=null, status=1, issueComplete=1, articleOrder=1, issueType=-1, specialIssue=null, createTime=1773812742361, creator=13701087609, updateTime=1773812823817, updator=13701087609, preIssue=null, nextIssue=null, ext={EN=IssueExt(id=1241024189247845056, tenantId=1146029695717560320, journalId=1227665162245664772, issueId=1241023847537897695, language=EN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=), CN=IssueExt(id=1241024189247845057, tenantId=1146029695717560320, journalId=1227665162245664772, issueId=1241023847537897695, language=CN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=)}, issueFiles=null}, startPage=220, endPage=226, ext={EN=ArticleExt(id=1241023850297741761, articleId=1241023848359973311, tenantId=1146029695717560320, journalId=1227665162245664772, language=EN, title=Construction and evaluation of a prediction model for the trend of acute respiratory infectious diseases based on multi-source data including symptom surveillance, columnId=1228016567443718970, journalTitle=Modern Preventive Medicine, columnName=Epidemiology and Statistical Methods Advances, runingTitle=null, highlight=null, articleAbstract=
Objective Toconstruct a Genetic Algorithm optimized Support Vector Machine (GA-SVM) model based on multi-source data predicting acute respiratory infectious diseases and toevaluate its predictive effectiveness, providing a reference for establishing an early warning system for respiratory infectious diseases.
Methods Symptom surveillance cases, meteorological and atmospheric pollution, data and stringency index obtained from 2020 to 2022 were used as modeling and forecasting samples, respectively. By picking up the optimum lagging week number of the potential predictive variables and filter out the most important variables successively, the independent variables were obtained. Then the full time series data were divided into validation set and training set in a 1:4 ratio. The parameters were optimized by genetic algorithm. We used the weekly number of new cases of respiratory infectious diseases as the dependent variable to structure the GA-SVM model. The performance was evaluated based on the following metrics: root mean square error (RMSE), meansabsolute percentage error (MAPE), predictive correlation coefficient (PCC) and R-squared (R2).
Results The most important variables were stringency index with 2-weeks-lag, symptom surveillance cases with 1-week-lag, maximum temperature with 1-week-lag, school activities with 2-weeks-lag and O3 index with 1-week-lag. The GA-SVM model performed best when C=18.04, γ=0.175 4 while average RMSE=6.362, average MAPE=24.59%, average PCC=0.896 and average R2=0.804.
Conclusions The model showsgood predictive performance for the reported cases of acute respiratory infectious diseases in Xuhui District, which confirms the feasibility of applying GA-SVM to multi-source data based on symptom monitoring for predicting respiratory infectious diseases, providing methodological references for the application of multi-source data in the early warning of infectious diseases.
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目的 构建基于多源数据的遗传算法优化的支持向量机(Genetic Algorithm optimized Support Vector Machine, GA-SVM)模型预测急性呼吸道传染病并评价其预测效果,为建立呼吸道传染病早期预警体系提供参考。
方法 根据2020—2022年上海市徐汇区的症状监测、气象及大气污染和严格指数数据,在潜在预测变量中挑选最佳延迟周数的预测变量后,筛选出预测重要性最强的变量作为自变量。按1:4比例将全时间序列划分为验证集和训练集,利用遗传算法优化参数,以呼吸道传染病每周新增病例数为因变量构建GA-SVM模型。采用均方根误差、平均绝对百分比误差、预测相关系数和决定系数对模型预测结果进行评价。
结果 预测重要性最强的变量为:延迟2周的严格性指数、延迟1周的症状监测病例数、延迟1周的最高气温、延迟2周的学校活动和延迟1周的臭氧(O3)指数。建立的GA-SVM模型最优参数C=18.04,γ=0.175 4,模型的平均均方根误差为6.362,平均绝对百分比误差为24.59%,平均预测相关系数和决定系数分别为0.896和0.804。
结论 该模型对于徐汇区急性呼吸道传染病报告病例数有着良好的预测效果,证实了GA-SVM应用于基于症状等多源数据实现呼吸道传染病预测的可行性,为多源数据应用于传染病早期预警提供方法参考。
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本刊刊出的所有文章不代表中华预防医学会和本刊编委会的观点,除非特别声明。, copyrightOwner=中华预防医学会和四川大学华西公共卫生学院, extLink=null, articleAbsUrl=null, sourceXml=xzbi7nJofG9hQz4qJp2EfQ==, magXml=0MgRhujxo599mV2w0mfSHA==, pdfUrl=null, pdf=ni+NERI8zWyO1+Hks90vww==, pdfFileSize=1688412, pdfExtLink=null, richHtmlUrl=null, mobilePdfUrl=null, reviewReport=null, pdfFirstPage=null, abstractGraph=ES58W0QpoYvg5ppY7LA10Q==, abstractGraphContent=null, abstractVideo=null, citation=null, cebUrl=null, magXmlContent=Z0dQPFh0l/K9Bv2H422IfQ==, mapNumber=null, authorCompany=null, fund=null, authors=
邬安琪(1989—),女,本科,公共卫生主管医师,研究方向:传染病预防与控制
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16(6): 91-98. (In Chinese), articleTitle=Research progress of big data in the management of emerging infectious diseases, refAbstract=null)], funds=[Fund(id=1241023859525210917, tenantId=1146029695717560320, journalId=1227665162245664772, articleId=1241023848359973311, awardId=SHXH202147, language=CN, fundingSource=2021年度徐汇区医学科研项目(SHXH202147), fundOrder=null, country=null)], companyList=[AuthorCompany(id=1241023852248093152, tenantId=1146029695717560320, journalId=1227665162245664772, articleId=1241023848359973311, xref=1., ext=[AuthorCompanyExt(id=1241023852256481762, tenantId=1146029695717560320, journalId=1227665162245664772, articleId=1241023848359973311, companyId=1241023852248093152, language=EN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=Xuhui Center for Disease Control and Prevention, Shanghai 200237, China), AuthorCompanyExt(id=1241023852264870371, tenantId=1146029695717560320, journalId=1227665162245664772, articleId=1241023848359973311, companyId=1241023852248093152, language=CN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=
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Trends in the number of reported acute respiratory infectious diseases cases (A) and respiratory symptom surveillance cases (B) from March 15, 2020, to January 30, 2022, figureFileSmall=xXhkZdVEBwlwusFy+RvZVg==, figureFileBig=ES58W0QpoYvg5ppY7LA10Q==, tableContent=null), ArticleFig(id=1241023856438203038, tenantId=1146029695717560320, journalId=1227665162245664772, articleId=1241023848359973311, language=CN, label=图1, caption=
2020年3月15日—2022年1月30日急性呼吸道传染病报告病例数(A)与呼吸道症状监测病例数(B)变化趋势, figureFileSmall=xXhkZdVEBwlwusFy+RvZVg==, figureFileBig=ES58W0QpoYvg5ppY7LA10Q==, tableContent=null), ArticleFig(id=1241023856702444206, tenantId=1146029695717560320, journalId=1227665162245664772, articleId=1241023848359973311, language=EN, label=Fig.2, caption=
Correlation coefficients between potential predictive variables and reported cases of acute respiratory infectious diseases, figureFileSmall=An4FNMTHrgavdIfUvjLmJg==, figureFileBig=24DwXBSPErgXSNmvdqIkqg==, tableContent=null), ArticleFig(id=1241023856786330295, tenantId=1146029695717560320, journalId=1227665162245664772, articleId=1241023848359973311, language=CN, label=图2, caption=
各潜在预测变量与急性呼吸道传染病报告病例数的相关系数注:* 0.01≤P<0.05;** 0.001≤P<0.01;*** P<0.001。
, figureFileSmall=An4FNMTHrgavdIfUvjLmJg==, figureFileBig=24DwXBSPErgXSNmvdqIkqg==, tableContent=null), ArticleFig(id=1241023856886993600, tenantId=1146029695717560320, journalId=1227665162245664772, articleId=1241023848359973311, language=EN, label=Fig.3, caption=
Genetic algorithm fitness curve (A) and population parameters C andγ values (B), figureFileSmall=ewduJeg2cooJ+VVOF22lRw==, figureFileBig=MOkAjaL4a1HITZE8Ip5j7g==, tableContent=null), ArticleFig(id=1241023856983462598, tenantId=1146029695717560320, journalId=1227665162245664772, articleId=1241023848359973311, language=CN, label=图3, caption=
遗传算法适应度曲线(A)和各种群参数值(B), figureFileSmall=ewduJeg2cooJ+VVOF22lRw==, figureFileBig=MOkAjaL4a1HITZE8Ip5j7g==, tableContent=null), ArticleFig(id=1241023857092514510, tenantId=1146029695717560320, journalId=1227665162245664772, articleId=1241023848359973311, language=EN, label=Fig.4, caption=
Model training (red) and prediction performance (blue) under 5-fold cross-validation, figureFileSmall=EktD9cDYXLOTsKcN1Ym0kA==, figureFileBig=ia2Q8RpBinOYRIRBF1RDew==, tableContent=null), ArticleFig(id=1241023858636018394, tenantId=1146029695717560320, journalId=1227665162245664772, articleId=1241023848359973311, language=CN, label=图4, caption=
5-折交叉验证下的模型训练(红色)和预测效果(蓝色)注:A~E为5-折交叉验证下模型1~模型5的训练效果和预测效果。
, figureFileSmall=EktD9cDYXLOTsKcN1Ym0kA==, figureFileBig=ia2Q8RpBinOYRIRBF1RDew==, tableContent=null), ArticleFig(id=1241023858736681698, tenantId=1146029695717560320, journalId=1227665162245664772, articleId=1241023848359973311, language=EN, label=Table 1, caption=
Root mean square error for predictive variables at each lag week
, figureFileSmall=null, figureFileBig=null, tableContent=
| 潜在预测变量 | 各延迟周数下的均方根误差 |
|---|
| 1周 | 2周 |
|---|
| 症状监测病例数 | 11.78a | 12.13 |
| 最高气温 | 12.88a | 13.29 |
| 最低气温 | 13.14a | 13.47 |
| 最大温差 | 13.89a | 14.09 |
| AQI | 14.14 | 14.01a |
| PM2.5 | 13.95 | 13.91a |
| PM10 | 14.08 | 13.99a |
| O3 | 12.27a | 12.82 |
| SO2 | 14.10a | 14.22 |
| NO2 | 12.78a | 12.84 |
| CO | 12.30 | 12.06a |
| 严格性指数 | 12.00 | 11.81a |
| 学校活动 | 12.34 | 11.63a |
), ArticleFig(id=1241023858845733609, tenantId=1146029695717560320, journalId=1227665162245664772, articleId=1241023848359973311, language=CN, label=表1, caption=
预测变量各延迟周数下的均方根误差
, figureFileSmall=null, figureFileBig=null, tableContent=
| 潜在预测变量 | 各延迟周数下的均方根误差 |
|---|
| 1周 | 2周 |
|---|
| 症状监测病例数 | 11.78a | 12.13 |
| 最高气温 | 12.88a | 13.29 |
| 最低气温 | 13.14a | 13.47 |
| 最大温差 | 13.89a | 14.09 |
| AQI | 14.14 | 14.01a |
| PM2.5 | 13.95 | 13.91a |
| PM10 | 14.08 | 13.99a |
| O3 | 12.27a | 12.82 |
| SO2 | 14.10a | 14.22 |
| NO2 | 12.78a | 12.84 |
| CO | 12.30 | 12.06a |
| 严格性指数 | 12.00 | 11.81a |
| 学校活动 | 12.34 | 11.63a |
), ArticleFig(id=1241023858946396913, tenantId=1146029695717560320, journalId=1227665162245664772, articleId=1241023848359973311, language=EN, label=Table 2, caption=
The prediction errors and predictive importance of the potential variables
, figureFileSmall=null, figureFileBig=null, tableContent=
| 潜在预测变量 | RMSE | R2 | MAE | % Inc MSE(%) |
|---|
| 症状监测病例数 | 7.676 | 0.735 | 5.792 | 49.78 |
| 最高气温 | 7.197 | 0.741 | 5.304 | 33.86 |
| 最低气温 | 8.113 | 0.712 | 5.972 | 30.86 |
| 最大温差 | 8.164 | 0.716 | 5.947 | |
| AQI | 8.064 | 0.725 | 6.066 | |
| PM2.5 | 7.139 | 0.777 | 5.275 | |
| PM10 | 7.184 | 0.778 | 5.331 | |
| O3 | 7.669 | 0.744 | 5.718 | 23.44 |
| SO2 | 7.391 | 0.757 | 5.493 | |
| NO2 | 7.635 | 0.743 | 5.727 | |
| CO | 7.825 | 0.735 | 5.799 | |
| 严格指数 | 7.794 | 0.731 | 5.706 | 84.75 |
| 学校活动 | 7.764 | 0.736 | 5.716 | 26.64 |
), ArticleFig(id=1241023859042865913, tenantId=1146029695717560320, journalId=1227665162245664772, articleId=1241023848359973311, language=CN, label=表2, caption=
潜在预测变量的预测误差和预测重要性
, figureFileSmall=null, figureFileBig=null, tableContent=
| 潜在预测变量 | RMSE | R2 | MAE | % Inc MSE(%) |
|---|
| 症状监测病例数 | 7.676 | 0.735 | 5.792 | 49.78 |
| 最高气温 | 7.197 | 0.741 | 5.304 | 33.86 |
| 最低气温 | 8.113 | 0.712 | 5.972 | 30.86 |
| 最大温差 | 8.164 | 0.716 | 5.947 | |
| AQI | 8.064 | 0.725 | 6.066 | |
| PM2.5 | 7.139 | 0.777 | 5.275 | |
| PM10 | 7.184 | 0.778 | 5.331 | |
| O3 | 7.669 | 0.744 | 5.718 | 23.44 |
| SO2 | 7.391 | 0.757 | 5.493 | |
| NO2 | 7.635 | 0.743 | 5.727 | |
| CO | 7.825 | 0.735 | 5.799 | |
| 严格指数 | 7.794 | 0.731 | 5.706 | 84.75 |
| 学校活动 | 7.764 | 0.736 | 5.716 | 26.64 |
), ArticleFig(id=1241023859160306437, tenantId=1146029695717560320, journalId=1227665162245664772, articleId=1241023848359973311, language=EN, label=Tabel 3, caption=
Model prediction performance and mean error under 5-fold cross-validation
, figureFileSmall=null, figureFileBig=null, tableContent=
| 交叉验证轮次 | RMSE | MAPE(%) | PCC | R2 |
|---|
| 1 | 5.796 | 19.17 | 0.904 | 0.817 |
| 2 | 10.620 | 22.42 | 0.799 | 0.639 |
| 3 | 5.790 | 25.92 | 0.933 | 0.870 |
| 4 | 3.704 | 17.27 | 0.916 | 0.838 |
| 5 | 5.902 | 38.17 | 0.931 | 0.866 |
| 均值 | 6.362 | 24.59 | 0.896 | 0.804 |
), ArticleFig(id=1241023859252581134, tenantId=1146029695717560320, journalId=1227665162245664772, articleId=1241023848359973311, language=CN, label=表3, caption=
5-折交叉验证下的模型预测效果和误差均值
, figureFileSmall=null, figureFileBig=null, tableContent=
| 交叉验证轮次 | RMSE | MAPE(%) | PCC | R2 |
|---|
| 1 | 5.796 | 19.17 | 0.904 | 0.817 |
| 2 | 10.620 | 22.42 | 0.799 | 0.639 |
| 3 | 5.790 | 25.92 | 0.933 | 0.870 |
| 4 | 3.704 | 17.27 | 0.916 | 0.838 |
| 5 | 5.902 | 38.17 | 0.931 | 0.866 |
| 均值 | 6.362 | 24.59 | 0.896 | 0.804 |
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