Aug 17, 2020
Aboutme:SamanthaKleinberg
• PhDinCS• Haveworkedinbiomathema.cs,bioinforma.cs/computa.onalbiology,biomedicalinforma.cs
• Currentresearch– Timeseriesdata,causalinference– Simula.on– Mobilehealth
NICUdataset
• 98pa.entswithsubarachnoidhemorrhage
• Monitoringincluded– DepthandsurfaceEEG– Microdialysis– Physiologicmeasurements
(nodataonprocedures)
Lotsofdata,butlotsofmissingdata
• Devicemalfunc.ons• Deviceconnectedtoperformaprocedure• Differentmonitorsstartedatdifferent.mes• Differentrecordingfrequencies
And…
• Allvariablesmaybemissingatonce(ifmeasuredbysingledevice)– Can’tuseimputa.onmethodsthatassumesomepresentvalues
• Missingvaluesdependonvariable+othervariables– e.g.BGdependsonitself,aswellasinsulin
• Variablesarecorrelatedacross.me
Imputa.onw/laggedcorrela.ons
S.A.Rahman,Y.Huang,J.Claassen,N.Heintzman,andS.Kleinberg.CombiningFourierandLaggedk-NearestNeighborImputa.onforBiomedicalTimeSeriesData.JournalofBiomedicalInforma.cs(2015)hbps://github.com/kleinberg-lab/FLK-NN
Differentdata,differentphysiology
ClaassenJ,RahmanSA,HuangY,FreyH,SchmidtM,AlbersD,FaloCM,ParkS,AgarwalS,ConnollyES,KleinbergS(2016)Causalstructureofbrainphysiologyaderbraininjury.PLoSONE.
Regula.onchangesover.me
0-96hrs
96-168hrs
hbp://discoverysedge.mayo.edu/ar.ficial-pancreas/
Causesofchangesinglucose
Cohort:17subjectswithT1DMSensordata(collectedfor>72hours)
– Glucosevalues– Insulindosage– Ac.vity– Sleepstage– Heartrate– Temperature
WithN.Heintzman(UCSD)http://dial.ucsd.edu/what-we-do.php
Results
veryvigorousexerciseleadstohyperglycemia(fdr<.01)in5-30minutes
– FoundusingbothHR(anaerobicac.vityzone)andMETs
• Notfoundwithstrictdiscre.za.on• Supportedbyliterature(MarlissandVranic,2002;RiddellandPerkins,2006)
S.KleinbergandN.Heintzman.Usinguncertaindatafrombody-wornsensorstogaininsightintotype1diabetes.JournalofBiomedicalInforma.cs,2016.
Whyareyouhere?
Whyhealthinforma.cs?
hbps://www.nih.gov/AllofUs-Research-Program
Whatcouldwedowiththis?
• Who’stheuser?• Whatproblemdotheyhave?• HowcanCShelp?
Butwhatdoweneedtoknowfirst?
• What’sthedataactually?Isitcorrect?• CanwereallyapplyML/DMmethodstoit?Whatarethechallenges?
• Canwesharedatafreely?Whynot?• Howdowepreserveprivacy
(andmuchmore)
Syllabus
Syllabus(con.nued)
Finalprojects
Johnson,A.E.W.etal.MIMIC-III,afreelyaccessiblecri.calcaredatabase.Sci.Data3:160035doi:10.1038/sdata.2016.35(2016).
Administra.via
• Coursewebsite:hbp://www.skleinberg.org/teaching/HI17/
• Prerequisites:none• Textbook:none,ar.cles• Topics/readingsonsyllabusMAYCHANGE(willmakeannouncementinclass)
• Workload/grading:midtermpresenta.on(25%),finalproject(50%),par.cipa.on(15%),homework(10%)
Keypolicies
1. Nolatework.Therearefewdeadlines,butifthedeadline’s11:59pm,worksubmibedat12:01amisn’taccepted(Why?TrysubmiqnganNIHgrant2minuteslate!)
2.
Plagiarism = F
What’splagiarism?
Presen.ngsomeoneelse’sworkasyourown – Copyinganen.repaper– Copyingpartsofotherworks,withoutabribu.on
• E.g.quoteswithoutcita.ons– Changingafewwords,butkeepingideasandstructure,withoutacknowledgingsource
Easytoavoid!Doyourownworkandacknowledgeallsources.Quotesmustbeinquotes.Don’tsubmitacollage.
1.Quotesbelonginquota.onmarks
• WRONG!– Blahblah.Textfromotherpapers.BlahBlah.[Cita.on]
– Sec.on1[Cita.on].Quotestextquotes.
• RightJ– Mytext“Quotefromawesomework.”[cita.on]mytext
3.Nocopying/closeparaphrasing
hbp://researchguides.stevens.edu/plagiarism
Ifyou’rehavingtrouble…
• Cometoofficehours!Monday2-3inLieb306andbyappointment
• Emailme
What’shealthinforma.cs?
Biology:
ComputerScience:Theoryandprac.ceof
compu.ngBioinforma.cs
Healthcare:
Informa7onscienceStoring,processing,etcinforma.on
Healthinforma.csBiomedicalinforma.cs
Biomedicalcompu.ng
Transla.onalbioinforma.cs
Anotherdefini.on• Defini7on:Biomedicalinforma.cs(BMI)istheinterdisciplinaryfieldthatstudies
andpursuestheeffec.veusesofbiomedicaldata,informa.on,andknowledgeforscien.ficinquiry,problemsolving,anddecisionmaking,drivenbyeffortstoimprovehumanhealth.
• Scopeandbreadthofdiscipline:BMIinves.gatesandsupportsreasoning,modeling,simula.on,experimenta.on,andtransla.onacrossthespectrumfrommoleculestoindividualsandtopopula.ons,frombiologicaltosocialsystems,bridgingbasicandclinicalresearchandprac.ceandthehealthcareenterprise.
• Theoryandmethodology:BMIdevelops,studies,andappliestheories,methods,andprocessesforthegenera.on,storage,retrieval,use,management,andsharingofbiomedicaldata,informa.on,andknowledge.
• Technologicalapproach:BMIbuildsonandcontributestocomputer,telecommunica.on,andinforma.onsciencesandtechnologies,emphasizingtheirapplica.oninbiomedicine.
• Humanandsocialcontext:BMI,recognizingthatpeoplearetheul.mateusersofbiomedicalinforma.on,drawsuponthesocialandbehavioralsciencestoinformthedesignandevalua.onoftechnicalsolu.ons,policies,andtheevolu.onofeconomic,ethical,social,educa.onal,andorganiza.onalsystems.
Kulikowski,C.A.,Shortliffe,E.H.,Currie,L.M.,Elkin,P.L.,Hunter,L.E.,Johnson,T.R.,Kalet,I.J.,Lenert,L.A.,Musen,M.A.,Ozbolt,J.G.,Smith,J.W.,Tarczy-Hornoch,P.Z.&Williamson,J.J.,2012,AMIABoardwhitepaper:defini.onofbiomedicalinforma.csandspecifica.onofcorecompetenciesforgraduateeduca.oninthediscipline,JournaloftheAmericanMedicalInforma7csAssocia7on,pp.amiajnl-2012-001053
Biomedical informatics and its areas of application and practice, spanning the range from molecules to populations and society (adapted from Shortliffe and Blois3).
Kulikowski C A et al. J Am Med Inform Assoc doi:10.1136/amiajnl-2012-001053
Copyright © by the American Medical Informatics Association. All rights reserved.
Mainsubfields
• (Transla.onal)Bioinforma.cs• Publichealthinforma.cs• Healthcare/Clinicalinforma.cs• Consumer/mHealth
Example:Transla.onalbioinforma.cs
Tatoneq,N.P.,Denny,J.C.,Murphy,S.N.,Fernald,G.H.,Krishnan,G.,Castro,V.,Yue,P.,Tsau,P.S.,Kohane,I.,Roden,D.M.&Altman,R.,2011,Detec.ngdruginterac.onsfromadverse-eventreports:interac.onbetweenparoxe.neandpravasta.nincreasesbloodglucoselevels,ClinicalPharmacology&Therapeu7cs,90(1),pp.133-42
Example:Predic.ngcancerstagefromonlinehealthforumtext
MukundJhaandNoemieElhadad.Cancerstagepredic.onbasedonpa.entonlinediscourse.InProceedingsofthe2010WorkshoponBiomedicalNaturalLanguageProcessing,pages64–71,Uppsala,Sweden,July2010
Example:Clinicalinforma.cs
Consumerinforma.cs
AMIAThemes• BiomedicalDataVisualiza7on• ClinicalInforma7cs:findingsrelatedtothedesign,
development,andimplementa.onofstate-of-the-artclinicalsystems
• ClinicalResearchInforma7cs:addressingthecri.calneedforeffec.veinforma.onmanagementtoaddressthemanychallengesfacingclinicalresearch
• ClinicalWorkflowandHumanFactors:humanfactorsaspectsofclinicalinforma.onsystemimplementa.onandusethatrevolvesaroundusability,workflow,andpa.entsafety
• ConsumerInforma7csandPHRs:PersonalHealthRecords(PHRs)andtheconsumerperspec.veintheuseofhealthinforma.onsciencedesignedtoimprovepa.entengagement,medicaloutcomes,andthehealthcaredecision-makingprocess
• MobileHealth:mHealth,Web2.0,socialmedia,telehealth/telemedicine,andrelatedtopics
• DataInteroperabilityandInforma7onExchange:methodsthatorganiza.onshaveundertakentodevelopandimplementvariousclinicaldataintegra.onandexchangeac.vi.es
• DataMining,NLP,Informa7onExtrac7onRetrieval:applica.onofdatamining,naturallanguageprocessing,informa.onextrac.onretrievaltoallareasofbiomedicine
• AchievingMeaningfulUse:waystopromotethesuccessfulandeffec.vedevelopment,implementa.on,andevalua.onofElectronicHealthRecordsasthena.onworkstoward"meaningfuluse"ofthesesystems
• GlobaleHealth:GlobaleHealthchallenges
• Informa7csEduca7onandWorkforceDevelopment:efforttocreateatrainedHITworkforce
• Informa7csinHealthProfessionalEduca7on:applica.onofinforma.ontechnologyinhealthprofessionaleduca.on
• Interac7veSystems:human-computerinterac.on(HCI)research,compellingdesigns,orinnova.veinterac.vetechnologies
• PolicyandEthicalIssues:unprecedentedna.onalHITac.vityandethicalconsidera.onsposedasmoreprac..onersandthepublicinterfacewiththesetechnologies.
• PublicHealthInforma7csandBiosurveillance:diseasedetec.on,communica.ons,workforcedevelopment,standardsandinteroperability,andbestprac.cestocombinethedomainsofhealthinforma.onscienceandtechnologywiththeprac.ceandscienceofpublichealth
• ImagingInforma7cs:intersec.onofimagingscience,biomedicalengineeringandbiomedicalinforma.cs,
• Simula7onandModeling:useofvariouscomputer-basedsimula.onandmodelingmethodologiesandtoolsastheycanbeappliedwithinthefieldofbiomedicalinforma.cs
• TerminologyandStandardsOntologies:complexissuessurroundingstandardsyntax,seman.cs,andpragma.csofdesign,developmentanduseofvariousapplica.on-specificandgeneralpurposeclinicalterminologiesandontologies
• Transla7onalBioinforma7csandBiomedicine:opportuni.esinbiomedicalinforma.csthatarisefromthestorage,retrieval,analysis,anddissemina.onofmolecularandgenomicinforma.oninaclinicalseqngcontext
hbp://www.amia.org/amia2013/themes
Stead,W.W.&Lorenzi,N.M.,1999,HealthInforma.csLinkingInvestmenttoValue,JournaloftheAmericanMedicalInforma7csAssocia7on,6(5),pp.341-8.
Goals
Stead,W.W.&Lorenzi,N.M.,1999,HealthInforma.csLinkingInvestmenttoValue,JournaloftheAmericanMedicalInforma7csAssocia7on,6(5),pp.341-8.
An Envisioned Cycle That Ties Patient Care with Knowledge Creation and Dissemination
Providers Caring for Patients
Electronic Health
Records Regional
and National Public
Health and Disease
Registries
Biomedical and
Clinical Research
Information, Decision-Support, and Order-Entry
Systems
Creation of Protocols, Guidelines,
and Educational
Materials
Standards for
Prevention and
Treatment
A �Learning Healthcare System�
SlidebyAMIA
HealthIT
Shortliffe,E.H.&Cimino,J.J.,2013,BiomedicalInforma7cs:ComputerApplica7onsinHealthCareandBiomedicine,SpringerVerla
BMI and HIT
Biomedical InformaticsTraining, Research and
Development• Academia• Research Institutes• Corporate Research Labs
Clinical Systems Companies
Academic Medical Centers
Hospitals, HealthSystems, Practices,Healthcare Industry
Biomedical ResearchCommunity
PEOPLEIDEASSOFTWAREMETHODS
SlidebyAMIA
Personalizedmedicine
Useindividuallevelcharacteris.csandinforma.ontotailortreatment
– Choosingbetweentreatmentsvs.crea.ngindividualtreatment
Personalizedmedicine+informa.cs
• Using-omicsinclinicalcare• Decisionsupport• Findsimilarpa.ents–treatments,outcomes
• t
Chronicdisease
• Diabetes• Obesity• Asthma• Epilepsy…
Par.cipatorymedicine
• Pa.entcentered
hbp://mobilizelabs.org/why-mhealth
Estrin,D.&Sim,I.,2010,OpenmHealtharchitecture:anengineforhealthcareinnova.on,Science(Washington),330(6005),pp.759-60
Challenges/openproblems
• Data• Replica.on/valida.on• Privacy/sharing• Transla.on
Fornextweek
• BesuretoreadWicksetal.paperinsyllabus!