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1.2.Motivations
Scopeandobjectives
Therationalefortheresearchdescribedinthisbookisthreefoldandmaybe
subdividedintothefollowingthreegroupsthatarediscussedindetailsbelow:
argumentsinfavorofprovidingcomputer-basedintegrativeclinicaldeci-
sionsupportatthepointofcare,
argumentsinfavorofconstructingcomprehensibledecisionmodelsfrom
collectedclinicaldata,
argumentsinfavorofprovidingevidencespecificandrelevantforthecur-
rentcontextofapatient-physicianencounter.
Providingintegrativeclinicaldecisionsupportatthepointofcare
Clinicaldecisionmakingisacomplexprocessthatinvolvesthemajortasks
ofdatacollection,diagnosisformulationandtreatmentplanning,corresponding
toimportantaspectsofmedicalproblemsolving[143].Eachtaskinthisprocess
reliesonknowledgeofattendingphysicians,whoduetothetasks3complexity
maysignificantlybenefitfromdecisionsupport.Whilesignificantresearchhas
beendevotedtosupportingindividualtasksinthedecisionmakingprocess(see
[173]foranoverview),limitedattentionhasbeengiventoprovidingintegrative
supportthatassiststhephysicianthroughouttheentireprocess.
Similarly,existingapproachestoanalyzing,designingandimplementing
CDSSsforthepointofcareuseresultinsystemsthatarefocusedonspecific
tasksfromthedecisionmakingprocess(see[19]forareview).Integrativeclin-
icaldecisionsupportcallsforanewsystemdesignthatwouldenablecreating
integrativeCDSSs(ICDSSs)thathelpphysicianswithmultipletasksacrossthe
entiredecisionmakingprocess,andtakeintoaccountamultitudeofinformation
andsupportneedsthatariseduringapatient-physicianencounter.
Constructingcomprehensibledecisionmodelsfromcollectedclinicaldata
AdvancesininformationtechnologiesandtheadventofEHRshaveledto
constantlygrowingamountofavailableclinicaldata(thisphenomenonissome-
timescalledthedatastream[79]).Thishasresultedinnewchancesandchal-
lengesfordataanalystsanddecisionmakers(physicians).Sheervolumeofdata
gaverisetodiscovery-drivenclinicaldecisionsupportwheredecisionmodels
arebasedonknowledgediscoveredfromdata.Unliketheexpert-drivenap-
proach,itdoesnotsufferfromtheFeigenbaumbottleneck[179]associatedwith
acquiringknowledgefromexpertsandmedicalliterature,andmaintainingit.
Thus,generationandmaintenanceoftheclinicalknowledgeiseasierandcanbe
performedusingadvancedknowledgediscoverytechniques,withoutorwith
littlehumansupervision.
Peculiaritiesofclinicaldata(missingvalues,inconsistentcategorizations,
imbalanceddistributionsofdecisionclasses[35])limittheusefulnessandappli-