大数据与SCI论文写作.ppt

大数据与SCI论文写作,金华市中心医院ICU章仲恒,大数据,指的是所涉及的数据量规模巨大到无法通过人工，在合理时间内达到截取、管理、处理、并整理成为人类所能解读的信息。,“大数据”时代已经降临，在商业、经济及其他领域中，决策将日益基于数据和分析而作出，而并非基于经验和直觉。-2012纽约时报,Data-drivendecisionmaking,LeoAnthonyCeli,RogerG.Mark,DavidJ.Stone,andRobertA.Montgomery“BigData”intheIntensiveCareUnit.ClosingtheDataLoop,AmericanJournalofRespiratoryandCriticalCareMedicine,Vol.187,No.11(2013),pp.1157-1160.,Elysium,Bigdata-criticalcare,Whyusedatabase?,efficientuseofresearchinvestments.UnethicalGreatergeneralizability(largeregistriesandadministrativedata)Primarydatacollectionistooonerous(5-or10-yrfollow-ups)morepreciseestimateofeffect(largesample),ExamplesDataSources,SELECTINGADATASOURCE,DataQualityTaxonomyoftheQuestionMappingtheQuestiontotheData,DataQuality,BlackN,PayneM:Directoryofclinicaldatabases:Improvingandpromotingtheiruse.QualSafHealthCare2003;12:348352,TaxonomyoftheQuestion,MyexperiencewithMIMIC-2,publicresearcharchiveofdatacollectedfrompatientsinintensivecareunits（30000）Openaccess,freelyavailiable(/mimic2/)HighresolutionBethIsraelDeaconessMedicalCenter(Boston)TechnologyprovidedbyMIT.Latestversion:2001-2008,AccesstoMIMIC-2,Figure1.RelationshipbetweeninitialiCa(upperpanel)andlogittransformedmortalitybyusingLowesssmoothingtechnique.,ZhangZ,XuX,NiH,DengH(2014)PredictiveValueofIonizedCalciuminCriticallyIllPatients:AnAnalysisofaLargeClinicalDatabaseMIMICII.PLoSONE9(4):e95204.doi:10.1371/journal.pone.0095204/article/info:doi/10.1371/journal.pone.0095204,Table3.Multivariablelogisticregressioncategorizingcalciumvaluesintointervalsbyusinglinearsplinefunction.,ZhangZ,XuX,NiH,DengH(2014)PredictiveValueofIonizedCalciuminCriticallyIllPatients:AnAnalysisofaLargeClinicalDatabaseMIMICII.PLoSONE9(4):e95204.doi:10.1371/journal.pone.0095204/article/info:doi/10.1371/journal.pone.0095204,Table4.Multivariablelogisticregressioncategorizingcalciumvaluesintodesignvariables.,ZhangZ,XuX,NiH,DengH(2014)PredictiveValueofIonizedCalciuminCriticallyIllPatients:AnAnalysisofaLargeClinicalDatabaseMIMICII.PLoSONE9(4):e95204.doi:10.1371/journal.pone.0095204/article/info:doi/10.1371/journal.pone.0095204,Datamanagement,Longformatidyearsexincue-180050000181055001182060000280120001281122000282133000380030000381020000382010001Wideformatidsexinc80inc81inc82ue80ue81ue82-105000550060000102120002200330010030300020001000001,Missingvalues,Multipleimputationtechnique,Inmyhospital,海泰电子病历系统SQL语言集合（,Relationaldatabase,Themed_eventstablecontainsinformationpertainingtothepatient,dosageandannotation.Theadditivestablecontainsinformationrelatedtotheadditiveswhichareincludedwiththedrugadministration.Thea_meddurationstablecontainsinformationaboutthetimeanddurationofthemedicationthed_meditemtablelin