factors include the way in which alignment of interests is achieved mechanisms for communication am.docx
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factorsincludethewayinwhichalignmentofinterestsisachievedmechanismsforcommunicationam
ComputersinHumanBehavior,Volume25,Issue5,September2009,Pages1129-1138
Fu-YunYu
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Abstract
Despitethefactthatthebenefitsofstudentquestiongenerationarewelldocumented,moststudentsdonottakepartinquestiongenerationexercisesduringtheirformalschoolingandarenotaccustomedtoauthoringquestions.Underthepremisethatstudentquestiongenerationactivitiesshouldbebettersupportedinatimely,flexibleandlogisticallyfeasiblefashion,acustomizableonlinelearningenvironmentthataccentuatesvariousscaffoldingtechniqueshasbeendesignedanddeveloped.Theframeworkguidingthedevelopmentofthesystem,anditsassociateddesigns,aredescribed.Toassessthevariousbuilt-inscaffoldsusedtosupportstudents’learningactivitiesbymeansofquestiongeneration,astudywasundertakentothatmeasuredstudents’perceivedusefulnessofeachmechanism,aswellastheeffectsoftheperceivedusefulnessofthescaffoldsonstudents’attitudestowardquestiongenerationlearningactivitiesingeneral.Thedatacollectedindicatedthat,byutilizingcomputersandnetworktechnologies,thedevelopedsystemprovidedasupportivelearningenvironmentforstudent’squestiongenerationlearningactivities.Supportfeaturesnotyetincludedinothersimilarsystems(includingaccesstogenericquestionstemswithsamplequestions,accesstomodelquestions,two-waycycliccommunicationbetweenauthorsofquestionandassessors,andtheabilitytoconcealone’srealidentitybyanonymityornickname,etc.),wereconfirmedtoprovideahighlevelofsupport.Recommendationsforclassroomimplementationsandfuturestudiesareoffered.
ArticleOutline
1.Introduction
1.1.Underlyingmechanismandbenefitsofstudent-generatedquestionsforlearning
1.2.Thecurrentstateofstudent-generatedquestions
1.3.Thepurposeoftheproject
2.Overviewofthecustomizablescaffoldedstudentquestiongenerationonlinelearningenvironment
2.1.Typesofstudentquestiongenerationlearningactivities
2.2.Frameworkguidingthecustomizablescaffoldedonlinelearningsystemforstudents’questiongenerationactivitiesandassociateddesigns
2.2.1.Reflectivesocialdiscourse
2.2.2.Processprompts
2.2.3.Processdisplays
2.2.4.Processmodels
2.3.Customizabilityoftheonlinestudentquestiongenerationlearningsystem
3.Astudyofstudents’perceptionsoftheusefulnessofthevarioussystemsupportmechanismsanditsinfluenceontheirattitudestowardtheeducationalpotentialofstudent-generatedquestions
3.1.Participantsandinstructionalcontext
3.2.Researchdesignandimplementationprocedures
3.3.Instruments
3.4.Results
4.Discussionandconclusions
4.1.Limitationsandsuggestionsforfuturestudies
Acknowledgements
References
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177
MachinelearningforradioxenoneventclassificationfortheComprehensiveNuclear-Test-BanTreaty OriginalResearchArticle
JournalofEnvironmentalRadioactivity,Volume101,Issue1,January2010,Pages68-74
TrevorJ.Stocki,GuichongLi,NathalieJapkowicz,R.KurtUngar
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Abstract
AmethodofweapondetectionfortheComprehensivenuclear-Test-Ban-Treaty(CTBT)consistsofmonitoringtheamountofradioxenonintheatmospherebymeasuringandsamplingtheactivityconcentrationof131mXe,133Xe,133mXe,and135Xebyradionuclidemonitoring.Severalexplosionsamplesweresimulatedbasedonrealdatasincethemeasureddataofthistypeisquiterare.Thesedatasetsconsistedofdifferentcircumstancesofanuclearexplosion,andareusedastrainingdatasetstoestablishaneffectiveclassificationmodelemployingstate-of-the-arttechnologiesinmachinelearning.AstudywasconductedinvolvingclassicinductionalgorithmsinmachinelearningincludingNaïveBayes,NeuralNetworks,DecisionTrees,k-NearestNeighbors,andSupportVectorMachines,thatrevealedthattheycansuccessfullybeusedinthispracticalapplication.Inparticular,ourstudiesshowthatmanyinductionalgorithmsinmachinelearningoutperformasimplelineardiscriminatorwhenasignalisfoundinahighradioxenonbackgroundenvironment.
ArticleOutline
1.Introduction
2.Datasetsthatwereusedandgenerated
2.1.Measureddata
2.2.Syntheticdata
3.Eventclassification
3.1.Thelineardiscriminator
3.2.Machinelearning
4.Results
5.Conclusion
References
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178
Network-awareschedulingforreal-timeexecutionsupportindata-intensiveopticalGrids OriginalResearchArticle
FutureGenerationComputerSystems,Volume25,Issue7,July2009,Pages794-803
FrancescoPalmieri
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Abstract
HighperformancecommunicationsupportisacriticalaspectformodernGridenvironmentswherethedeploymentofdata-intensiveapplicationsoftenrequiresmovingPetabytesofdatabetweengeographicallydistantdatarepositoriesinspecifictimeranges.Thebest-effortdeliverysystemoftheInternet,oftenusedastheunderlyingtransportnetwork,imposessevereconstraintsonthetransferofmassiveamountsofdata,andthusrestrictsthedeploymentoftheaboveapplicationsonwide-areascales.Besidesthelackofbandwidth,theinabilitytoprovidededicatedlinksmakesthecurrentnetworktechnologynotwellsuitedforperformancecriticalGridcomputing.Asolutionisneededtoprovidededicatedend-to-endconnections,dynamicallyallocableon-demandorbyscheduledreservationtocriticaldata-intensiveapplications.Wavelengthroutingisatthestateoftheartthemostpromisingsolutiontorealizesuchconnections.Accordingly,weproposeanevolutionaryGridapproachbuiltoninter-domainend-to-endlightpathprovisioning,controlledbyameta-schedulinglogiconadvancereservationbasis,offeringtherequiredconnectivityservicestotheinvolvedGridnodesbyinfluencingjobschedulingdecisionswithnetwork-relatedinformation.WediscussopportunitiesandchallengesinthenetworkcontrolplaneandGridmiddlewaredesign,togetherwiththerequiredinterfaces,adaptersandalgorithmscriticaltotheprovisionofnetwork-assistedextensibleresourceschedulingservices.TheproposedsolutionwillresultinaflexibleGridarchitecturethatsupportscooperationbetweendifferentschedulingentities,basedonascalableframeworkfordynamicconfigurationandinterconnectionofmultipletypesofresourcesforhighperformanceGridapplicationsovergloballydistributedopticalnetworksystems.
ArticleOutline
1.Introduction
2.Backgroundconcepts
2.1.OpticaltransportnetworksforhighperformanceGrids
2.2.TheevolutionoftransportnetworkssuitableforGrids
3.Advancereservationandnetwork-awarescheduling
4.Managingthenetworkresources
4.1.Lightpathdiscoveryandestablishment
4.2.Networkserviceinterface
4.2.1.Webserviceimplementation
4.2.2.Networkcontrolplaneaccess
5.Themeta-schedulingservice
5.1.Network-awareresourcescheduling
6.Performanceevaluationandresultanalysis
7.Relatedwork
8.Conclusions
References
Vitae
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179
Amixedspectrummanagementframeworkforthefuturewirelessservicebasedontechno-economicanalysis:
TheKoreanspectrumpolicystudy OriginalResearchArticle
TelecommunicationsPolicy,Volume33,Issue8,September2009,Pages407-421
JunseokHwang,HyenyoungYoon
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Abstract
Theevolutionofradiotechnologyandvariousserviceshasincreasedtheworld'sdependenceonwirelesscommunications.Thedemandforandvalueofspectrumresourcesthereforearealsoincreasing.Spectrumefficiencyisthemostimportantfactorinmanagingspectrumscarcity.However,underthecurrentspectrummanagementapproach,itisdifficulttoadoptinnovativetechnologiesthatimprovespectrumefficiencyandflexibleusageinthecurrentdynamicwirelessmarket.Recently,therehavebeenseveralapproachestoimproveefficientuseofspectrumresources,andeachapproachhasitsownadvantagesanddisadvantages.Therefore,thisresearchfirstdiscussescurrentissuesandanalyzesrelativesocialwelfarebasedonthedifferentcharacteristicsoftechnologyandmarketconditionstocomparevariousattributesofeachapproach.Basedonthetechno-economicsimulationresults,thispaperintroducesamixedspectrummanagementframeworkforthefuturewirelessserviceandsupportpolicymakers’decisionmaking.Furthermore,themixedspectrumpolicytospectrummanagementinKoreaisproposedtofindamorerealisticandefficientspectrummanagementpolicy.
ArticleOutline
1.Introduction
2.Spectrummanagementregime
2.1.Property-rightsapproachallowingsecondarytrading
2.2.Openapproach(unlicensed)
2.3.Commonapproach(spectrumsharing)
2.4.Internationaltrends
3.Modeldescription
3.1.SINR-basedutilityfunctionmodel
3.2.Welfaremodel
4.Experiment
4.1.Scenariodescription
4.2.Parameterdescriptions
5.Resultsandimplications
5.1.Resultsdependingonmarketconditions
5.2.Resultsdependingonservicecharacteristics
5.3.Decisioncriteria—mixedregime
6.Conclusion
Acknowledgements
References
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