簡介：FORENSICANALYSISOFWHATSAPPMESSENGERONANDROIDSMARTPHONESCOSIMOANGLANODISIT–COMPUTERSCIENCEINSTITUTE,UNIVERSITáDELPIEMONTEORIENTALE,ALESSANDRIA,ITALYARTICLEINFOARTICLEHISTORYRECEIVED15JANUARY2014RECEIVEDINREVISEDFORM17MARCH2014ACCEPTED26APRIL2014AVAILABLEONLINE27MAY2014KEYWORDSWHATSAPPWHATSAPPMESSENGERINSTANTMESSAGINGANDROIDSMARTPHONESABSTRACTWEPRESENTTHEFORENSICANALYSISOFTHEARTIFACTSLEFTONANDROIDDEVICESBYWHATSAPPMESSENGER,THECLIENTOFTHEWHATSAPPINSTANTMESSAGINGSYSTEMWEPROVIDEACOMPLETEDESCRIPTIONOFALLTHEARTIFACTSGENERATEDBYWHATSAPPMESSENGER,WEDISCUSSTHEDECODINGANDTHEINTERPRETATIONOFEACHONEOFTHEM,ANDWESHOWHOWTHEYCANBECORRELATEDTOGETHERTOINFERVARIOUSTYPESOFINFORMATIONTHATCANNOTBEOBTAINEDBYCONSIDERINGEACHONEOFTHEMINISOLATIONBYUSINGTHERESULTSDISCUSSEDINTHISPAPER,ANANALYSTWILLBEABLETORECONSTRUCTTHELISTOFCONTACTSANDTHECHRONOLOGYOFTHEMESSAGESTHATHAVEBEENEXCHANGEDBYUSERSFURTHERMORE,THANKSTOTHECORRELATIONOFMULTIPLEARTIFACTS,SHEWILLBEABLETOINFERINFORMATIONLIKEWHENASPECIFICCONTACTHASBEENADDED,TORECOVERDELETEDCONTACTSANDTHEIRTIMEOFDELETION,TODETERMINEWHICHMESSAGESHAVEBEENDELETED,WHENTHESEMESSAGESHAVEBEENEXCHANGED,ANDTHEUSERSTHATEXCHANGEDTHEMa2014ELSEVIERLTDALLRIGHTSRESERVEDINTRODUCTIONTHEINTRODUCTIONOFSOPHISTICATEDCOMMUNICATIONSERVICESOVERTHEINTERNET,ALLOWINGUSERSTOEXCHANGETEXTUALMESSAGES,ASWELLASAUDIO,VIDEO,ANDIMAGEFILES,HASCHANGEDTHEWAYPEOPLEINTERACTAMONGTHEMTHEUSAGEOFTHESESERVICES,BROADLYNAMEDINSTANTMESSAGINGIM,HASUNDOUBTEDLYEXPLODEDINTHEPASTFEWYEARS,MAINLYTHANKSTOTHEPERVASIVENESSOFSMARTPHONES,THATPROVIDEQUITESOPHISTICATEDIMAPPLICATIONSSMARTPHONESINDEEDENABLEUSERSTOEXPLOITTHEIRDATACONNECTIONTOACCESSIMSERVICESANYWHEREANDANYTIME,THUSELIMINATINGTHECOSTSUSUALLYCHARGEDBYMOBILEOPERATORSFORSIMILARSERVICESEG,FORSMSCOMMUNICATIONGIVENTHEIRPOPULARITY,IMSERVICESAREBEINGINCREASINGLYUSEDNOTONLYFORLEGITIMATEACTIVITIES,BUTALSOFORILLICITONESTHEUNITEDNATIONSOFFICEONDRUGSANDCRIME,2013CRIMINALSMAYINDEEDUSETHEMEITHERTOCOMMUNICATEWITHPOTENTIALVICTIMS,ORWITHOTHERCRIMINALSTOESCAPEINTERCEPTIONBELLOVINETAL,2013THEREFORE,IMAPPLICATIONSHAVETHEPOTENTIALOFBEINGAVERYRICHSOURCEOFEVIDENTIARYINFORMATIONINMOSTINVESTIGATIONSAMONGIMAPPLICATIONSFORSMARTPHONES,WHATSAPPWHATSAPPINC,2013ISACCREDITEDTOBETHEMOSTWIDESPREADONEREPORTEDLYWINKLER,2013,ITHASOVER400MILLIONACTIVEUSERSTHATEXCHANGE,ONAVERAGE,MORETHAN31BILLIONMESSAGESPERDAY,325MILLIONSOFWHICHAREPHOTOSOLIVAREZGILES,2013GIVENITSRECENTACQUISITIONBYFACEBOOK,ITISREASONABLETOEXPECTAFURTHERGROWTHINITSDIFFUSIONTHEREFORE,THEANALYSISOFWHATSAPPMESSENGER,THECLIENTOFWHATSAPPTHATRUNSONSMARTPHONES,HASRECENTLYRAISEDTHEINTERESTOFTHEDIGITALFORENSICSCOMMUNITYTHAKUR,2013MAHAJANETAL,2013TSOETAL,2012INTHISPAPERWEDEALWITHTHEFORENSICANALYSISOFWHATSAPPMESSENGERONANDROIDSMARTPHONESANDROIDUSERS,INDEED,ARGUABLYREPRESENTTHELARGESTPARTOFTHETELT390131360188EMAILADDRESSESCOSIMOANGLANOUNIPMNIT,COSIMOANGLANODIUNIPMNITCONTENTSLISTSAVAILABLEATSCIENCEDIRECTDIGITALINVESTIGATIONJOURNALHOMEPAGEWWWELSEVIERCOM/LOCATE/DIINHTTP//DXDOIORG/101016/JDIIN20140400317422876/a2014ELSEVIERLTDALLRIGHTSRESERVEDDIGITALINVESTIGATION112014201–213YOUWAVEVIRTUALIZATIONPLATFORMYOUWAVECORP,2013THATISABLETOFAITHFULLYEMULATETHEBEHAVIOROFACOMPLETEANDROIDDEVICEYOUWAVEIMPLEMENTSTHEINTERNALDEVICEMEMORYASAVIRTUALBOXSTORAGEFILEORACLECORP,2013,WHOSEFORMATISDOCUMENTEDAND,THEREFORE,CANBEPARSEDBYASUITABLETOOLTOEXTRACTTHEFILESSTOREDINSIDEITINTHISWAY,THEACQUISITIONOFTHEINTERNALMEMORYOFTHEDEVICEISGREATLYSIMPLIFIED,ASITREDUCESTOINSPECTTHECONTENTOFTHISFILEINORDERTOENSURETHESOUNDNESSOFOURAPPROACH,WEHAVEMADETESTSINWHICHTHEBEHAVIOROF,ANDTHEDATAGENERATEDBY,WHATSAPPMESSENGERRUNNINGONYOUWAVEHAVEBEENCOMPAREDAGAINSTTHOSEPRODUCEDWHENITRUNSONREALSMARTPHONESTHESETESTSHAVEBEENPERFORMEDEITHERINDIRECTLY,BYCOMPARINGTHEDATAFOUNDINTHEINACCESSIBLEMEMORYAREAOFYOUWAVEAGAINSTTHOSEDOCUMENTEDINTHELITERATURETHAKUR,2013MAHAJANETAL,2013,ORDIRECTLY,BYCOMPARINGTHEDATASTOREDONTHEEMULATEDSDMEMORYCARDAGAINSTTHOSEGENERATEDONAREALSMARTPHONETHERESULTSOFOURTESTSINDICATETHAT,FROMTHEPERSPECTIVEOFWHATSAPPMESSENGER,YOUWAVEANDAREALSMARTPHONEBEHAVETHESAMEWAYOUREXPERIMENTALTESTBEDCONSISTSTHUSINTOASETOFYOUWAVEVIRTUALMACHINES,NAMELYONEFOREACHDEVICEINVOLVEDINTHEEXPERIMENTS,RUNNINGANDROIDV404ONEACHONEOFTHESEMACHINESWEINSTALLANDUSEWHATSAPPMESSENGERV211INEACHEXPERIMENT,WEASSIGNAROLETOEACHVIRTUALDEVICEEGSENDERORRECIPIENTOFAMESSAGE,GROUPCHATLEADER,ETC,ANDUSEITTOCARRYOUTTHECORRESPONDINGACTIVITIESTHEN,ATTHEENDOFTHEEXPERIMENT,WESUSPENDTHEVIRTUALDEVICE,PARSETHEFILEIMPLEMENTINGTHECORRESPONDINGINTERNALMEMORYNAMEDYOUWAVE_VM01VDIBYMEANSOFFTKIMAGERV31ACCESSDATACORPORATION,2013,ANDEXTRACTTHEFILESWHEREWHATSAPPMESSENGERSTORESTHEDATAITGENERATES1THESEFILESARETHENEXAMINEDBYMEANSOFSUITABLETOOLSINPARTICULAR,WEUSESQLITEMANVANEKANDLES,2013TOEXAMINETHEDATABASESMAINTAINEDBYWHATSAPPMESSENGERASDISCUSSEDLATER,THEYARESQLITEV3DATABASESSQLITECONSORTIUM,2013,ANDNOTEPADTTHO,2013TOEXAMINETEXTUALFILESBYPROCEEDINGASEXPOSEDABOVE,AWEAREABLETOAVOIDTHERISKSOFCONTAMINATIONANDOFANINCOMPLETEACQUISITIONOFTHEDATASTOREDINTHEMEMORYOFTHEDEVICE,BWEENSUREREPEATABILITYOFEXPER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簡介：中文中文4200字文獻出處文獻出處ZHIHAIY,WEIHONGY,YANC,ETALMOBILEHEALTHCARERESEARCHBASEDONJADEAGENTANDANDROIDPLATFORMC//SOFTWAREENGINEERINGANDSERVICESCIENCEICSESS,20145THIEEEINTERNATIONALCONFERENCEONIEEE,2014723726本科生畢業(yè)論文外文翻譯論文題目MOBILEHEALTHCARERESEARCHBASEDONJADEAGENTANDANDROIDPLATFORM學(xué)生姓名學(xué)號專業(yè)計算機科學(xué)與技術(shù)年級計算機１１１指導(dǎo)教師職稱教授學(xué)院信息與電氣工程學(xué)院二．相關(guān)工作二．相關(guān)工作我們的工作的很多方面與云計算有關(guān)。為了我們的研究，我們研究了很多技術(shù)。我們主要使用的技術(shù)如下。AJADE代理JADE是一種流行的開源框架，促進了多智能體系統(tǒng)的發(fā)展。JADE的每一個運行實例環(huán)境被稱為一個容器，因為它可以包含若干代理。該組活性的容器被稱為平臺。JADE以適應(yīng)移動環(huán)境與資源有限的約束條件所需的內(nèi)存和處理能力。此外JADE實現(xiàn)FIPA規(guī)范，以此支持極具表現(xiàn)力和復(fù)雜的通信。FIPAACL交際法庫規(guī)范允許給語義到通信不考慮該消息的內(nèi)容和所述FIPA。交互協(xié)議規(guī)范允許建立既簡單相互作用（即請求響應(yīng)）和更復(fù)雜的（IECONTRACT凈有用BANDROIDANDROID推出一個全新的稱作DALVIK的虛擬機，為低內(nèi)存要求進行了優(yōu)化，并設(shè)計成允許一次運行多個虛擬機實例。安卓提供一個運行環(huán)境，其中每個應(yīng)用程序在它自己的LINUX線程ANDROID應(yīng)用模式包括四個組成部分活動、接收器、服務(wù)和內(nèi)容提供商提供抽象，支持開發(fā)人員構(gòu)建用戶接口、管理平臺或應(yīng)用程序、構(gòu)建后臺服務(wù)，并且能獲得通過透明方式獲取各種各樣的數(shù)據(jù)。值得一提的ANDROID的一個非常重要的特征應(yīng)用程序的生命周期不是直接由應(yīng)用程序本身控制的。事實上，它是系統(tǒng)通過分析所知道的應(yīng)用程序的的哪些部分誰知正在運行，以及他們對用戶的重要性和總共所需要內(nèi)存是否能夠滿足來決定的。三．三．JADEJADE代理在代理在ANDROIDANDROID平臺上的原理和開發(fā)方法平臺上的原理和開發(fā)方法因此,結(jié)合JADE代理的表現(xiàn)力與ANDROID平臺的強大,在我們看來,開發(fā)一套基于社會和點對點的創(chuàng)新應(yīng)用具有很大的價值。將JADE代理集成到ANDROID平臺非常困難。開發(fā)人員應(yīng)該有一個良好的代理編程機制以及ANDROID的活動機制、意圖機制、廣播機制等。JADE和ANDROID是完全不同的發(fā)展平臺,特別是由于硬件的限制，正常JADE代理不能在手機等移動設(shè)備上運行。因此,有一些系統(tǒng)開發(fā)的瓶頸問題1完整的JADE運行時環(huán)境的數(shù)兆的內(nèi)存,手持設(shè)備不能適應(yīng)。

簡介：2600英文英文單詞單詞，12500英文字符，中文英文字符，中文4700字文獻出文獻出處ZARZUELAMM,PERNASFJD,CALZóNSM,ETALEDUCATIONALTOURISMTHROUGHAVIRTUALREALITYPLATFORMJPROCEDIACOMPUTERSCIENCE,2013,2525382388畢業(yè)設(shè)計畢業(yè)設(shè)計（論文）外文參考文）外文參考資料（原文與（原文與譯文）文）外文外文題目目EDUCATIONALTOURISMTHROUGHAVIRTUALREALITYPLATFORM中文中文題目基于一個虛目基于一個虛擬現(xiàn)實擬現(xiàn)實平臺的教育旅游的研究平臺的教育旅游的研究與實現(xiàn)實現(xiàn)作者者MARIOMARTíNEZZARZUELA,FRANCISCOJDíAZPERNAS,SERGIOMARTíNCALZóN,DAVIDGONZáLEZORTEGA,MIRIAMANTóNRODRíGUEZ21GAMEDESCRIPTIONANDSTAGEGAMETHESERIOUSGAMEDEVELOPEDISFOCUSEDONTHETOURISMSECTOR,WITHTHEAIMTOPROMOTETHECITYOFVALLADOLIDDURINGTHEGAME,THEPLAYERACQUIRESNEWKNOWLEDGEOFTHECITYBYANSWERINGQUESTIONSRELATEDTOVARIOUSSUBJECTSASHISTORY,GEOGRAPHY,SPORTS,ARTANDLITERATURETHEGAMETAKESPLACEINTHEMAINSQUAREOFVALLADOLID,THUSITWASNECESSARYTORECONSTRUDTIN3DTHEREALBUILDINGSTHATSURROUNDTHESQUARE,INCLUDINGTHECITYHALLANDTHESTATUETHATDOMINATESTHISHISTORICAREAOFVALLADOLIDFORTHISPURPOSE,THE3DMODELINGPROGRAMTRIMBLESKETCHUP3WASUSEDTHEBUILDINGSWEREPLACEDACCORDINGTOTHEIRREALLOCATION,USINGPHOTOGRAPHSANDIMAGESOBTAINEDFROMGOOGLEMAPSTHESPACEINTHEMIDDLEOFTHEMAINSQUARE,WHERETHEMONUMENTTOCOUNTANSUREZISLOCATED,HOUSESTHESQUARESTHATAREPARTOFTHEGAMEBOARDFIG2SHOWSTHECOMPLETESTAGEANDTHEDISPOSITIONOFSUCHSQUARESFIG1GAMEINITIALVISIONFIG2REPRODUCTIONOFTHEMAINSQUARE22USERINTERACTIONTHEGAMEWASPROGRAMMEDUSINGTHEGAMEENGINEUNITY3D4THEFIRSTSTEPDEVELOPINGTHISGAMEWASTHEINTEGRATIONOFTHEKINECTDEVICEINUNITY3DTHISWAS

簡介：PROCEDIACOMPUTERSCIENCE252013382–38818770509?2013THEAUTHORSPUBLISHEDBYELSEVIERBVSELECTIONANDPEERREVIEWUNDERRESPONSIBILITYOFTHEPROGRAMMECOMMITTEEOFTHE2013INTERNATIONALCONFERENCEONVIRTUALANDAUGMENTEDREALITYINEDUCATIONDOI101016/JPROCS201311047SCIENCEDIRECTAVAILABLEONLINEATWWWSCIENCEDIRECTCOM2013INTERNATIONALCONFERENCEONVIRTUALANDAUGMENTEDREALITYINEDUCATIONEDUCATIONALTOURISMTHROUGHAVIRTUALREALITYPLATFORMMARIOMARTíNEZZARZUELA,FRANCISCOJDíAZPERNAS,SERGIOMARTíNCALZóN,DAVIDGONZáLEZORTEGA,MIRIAMANTóNRODRíGUEZDEPARTMENTOFSIGNALTHEORY,COMMUNICATIONSANDTELEMATICSENGINEERINGOFTHEUNIVERSITYOFVALLADOLID,SPAINABSTRACTTHISARTICLEPRESENTSAVIRTUALREALITYSERIOUSGAMETHATALLOWSTHEUSERTOINCREASETHEKNOWLEDGEABOUTTHECITYOFVALLADOLIDINSPAINWITHTHISGOAL,THEMAINSQUAREANDSOMEOFTHEHISTORICBUILDINGSINTHEDOWNTOWNHAVEBEENVIRTUALLYRECREATEDWEHAVETAKENADVANTAGEOFTHECHARACTERISTICTILEDFLOOROFTHETOWNHALLSQUARETOREPRESENTAGAMEBOARDDIFFERENTTILEDFLOORSARESQUARESWHICHHIDEQUESTIONSBEHINDTHEUSERPLAYSUSINGANATURALUSERINTERFACEBASEDONMICROSOFT?KINECT?2013THEAUTHORSPUBLISHEDBYELSEVIERBVSELECTIONAND/ORPEERREVIEWUNDERRESPONSIBILITYOFTHEPROGRAMMECOMMITTEEOFTHE2013INTERNATIONALCONFERENCEONVIRTUALANDAUGMENTEDREALITYINEDUCATIONKEYWORDSSERIOUSGAMEVIRTUALREALITY,EDUCATIONALTOURISM1INTRODUCTIONEDUCATIONALTOURISMISONEOFTHETRENDSTHATHAVEHIGHERGROWTHINRECENTYEARS1TOURISTSAREBEGINNINGTOGIVEMOREIMPORTANCETONEWWAYSOFKNOWINGDIFFERENTTOURISTDESTINATIONS,SOTHEPOSSIBILITIESOFLEARNINGGROWSIGNIFICANTLYONCERTAINOCCASIONS,THELEARNINGACTIVITIESATTHEDESTINATIONAREPERFORMEDASANNEXEDTOTHETRAVELAIM,BUTOTHERTIMES,THEPURPOSEOFTHETRIPISTHELEARNINGITSELFTHEMOSTCOMMONWAYTOKNOWANYCITYISTHROUGHBROCHURESPROVIDEDBYTHEOFFICEOFINFORMATIONANDTOURISMINTHISWAYTHESEOFFICESCANFOSTERAMOREATTRACTIVEWAYTOLEARNABOUTTHEDIFFERENTASPECTSOFTHECITYHOWEVER,AUGMENTEDANDVIRTUALREALITYTECHNOLOGIESCANBEUSEDTOIMPROVETHEUSEREXPERIENCEASTEPFURTHERINTHISLEARNINGPROCESS2THEFIRSTONEISUSEDMAINLYINTHETRAVEL,WHILEWITHTHESECONDONEISPOSSIBLETORECREATETHETOURISTSPACEELSEWHEREOTHERNOVELTECHNIQUEFORTOURISMISBASEDONTHEUTILIZATIONOFCORRESPONDINGAUTHOREMAILADDRESSMARMARTELUVAESAVAILABLEONLINEATWWWSCIENCEDIRECTCOM?2013THEAUTHORSPUBLISHEDBYELSEVIERBVSELECTIONANDPEERREVIEWUNDERRESPONSIBILITYOFTHEPROGRAMMECOMMITTEEOFTHE2013INTERNATIONALCONFERENCEONVIRTUALANDAUGMENTEDREALITYINEDUCATIONOPENACCESSUNDERCCBYNCNDLICENSEOPENACCESSUNDERCCBYNCNDLICENSE384MARIOMARTíNEZZARZUELAETAL/PROCEDIACOMPUTERSCIENCE252013382–38822USERINTERACTIONTHEGAMEWASPROGRAMMEDUSINGTHEGAMEENGINEUNITY3D4THEFIRSTSTEPDEVELOPINGTHISGAMEWASTHEINTEGRATIONOFTHEKINECTDEVICEINUNITY3DTHISWASDONEUSINGMICROSOFTKINECTSDK5ANDAUNITY3DPACKAGEKNOWNASKINECTWRAPPER,WHICHINCLUDESANUMBEROFSCRIPTSANDPREFABSTHATALLOWTHERECOGNITIONOFTHEPLAYERWITHINTHESCENEUSINGTHISPACKAGEYOUCANINSERTASKELETONINTHESTAGETHATISABLETOPLAYALLTHEMOVESTHATTHEPLAYERMAKESINFRONTOFTHEKINECTDEVICEDURINGTHEGAMEITISESSENTIALTODETECTTHEMOVEMENTSBEINGMADEBYTHEUSERIFAMOVEMENTISALLOWEDANDEXPECTED,THENANEVENTINTHEGAMEHASTOBETRIGGERED,WHILEIFTHEMOVEMENTITISUNRELATEDTOCHARACTERCONTROLS,NOTHINGSHOULDHAPPENINORDERNOTTOSPOILTHEGAMEPROPEROPERATIONALLCONTROLSAREDONEADDINGBOXCOLLIDERSTODIFFERENTPARTSOFTHEUSERSKELETONSEEFIG3,ANDUSINGONTRIGGERENTER,ONTRIGGERSTAYANDONTRIGGEREXITFUNCTIONSINDIFFERENTSCRIPTS,ASWELLASDIFFERENTTAGSFIG3SKELETONWITHCOLLIDERSTHEAVATARMESHWASCREATEDUSINGTHEOPENSOURCESOFTWAREMAKEHUMAN6THISCHARACTERMODELWASTHENCONVENIENTLYTREATEDINBLENDER3DMODELINGPROGRAMTHEWORKINBLENDERINCLUDEDCREATINGANANIMATIONSEQUENCEREPRESENTINGAWALKCYCLESEEFIG4FIG4FINALSTATEOFTHEANIMATEDCHARACTERINBLENDERONCETHECHARACTERHASBOTHANIMATIONSTHEYAREEXPORTEDINEXTENSIONFBXFORSUBSEQUENTINSERTIONINTOUNITY3D,WHICHWILLBETEXTUREDANDWITHANEWSCRIPT,ITWILLBEINDICATEDWHICHOFTHETWOANIMATIONSTOPLAYANDWHENTODOIT23FLEXIBILITYANDXMLQUESTIONEDITINGAKEYDESIGNASPECTOFTHESERIOUSGAMEWASTHATITSHOULDBEEASILYCONFIGUREDOREVENMODIFIEDUSINGXMLFILESTHESEXMLFILESCANBEUSEDTODEFINEBASICVARIABLESOFTHEGAMEIETHETIMEAVAILABLETOANSWER

簡介：中文中文6150字，字，3500英文單詞，英文單詞，19500英文字符英文字符文獻出處文獻出處KIMJ,KIMS,NAMCCOMPETITIVEDYNAMICSINTHEKOREANVIDEOPLATFORMMARKETTRADITIONALPAYTVPLATFORMSVSOTTPLATFORMSJTELEMATICSTHEORYOFNICHEVIDEOPLATFORMMARKETCOMPETITIONTRADITIONALPAYTV1INTRODUCTIONNETFLIX,THEINTERNATIONALLYACCLAIMEDONLINEVIDEOPLATFORM,WASNOMINATEDINSIXCATEGORIESATTHE71STGOLDENGLOBEAWARDSIN2013,ANDWONTHEBESTPERFORMANCEBYANACTRESSINATELEVISIONDRAMAAWARDFORHOUSEOFCARDSFAMOUSFORPROVIDINGVIDEOONDEMANDVODSTREAMINGSERVICESGLOBALLY,NETFLIXHADRECENTLYCOMMENCEDPRODUCINGHOUSEOFCARDSASITSFIRSTORIGINALCONTENTTITLE,GARNERINGENOUGHATTENTIONTORECEIVETHEAWARDNETFLIXUSESTHEINTERNETTOBROADCASTVIDEOCONTENTANDISCOMMONLYREFERREDTOASOVERTHETOPOTTMEDIAMEANWHILE,HBO,AREPRESENTATIVEPREMIUMCABLEANDSATELLITETVPROVIDERINTHEUS,LAUNCHEDITSOWNOTTSERVICE“HBOGO”IN2010WHILEBOTHPROVIDERSHADFORECASTTHECHANGESINMEDIAUSAGEPATTERNSANDRECOGNIZEDTHEVALUEOFINTERNETBASEDSERVICES,NETFLIXMANAGEDTOSELLTHESAMENUMBEROFPAIDSUBSCRIPTIONSASHBOBYOCTOBER2013MOREOVER,CONSUMERSWHOWERESUBSCRIBERSOFPAYTVPLATFORMSINCLUDINGCABLEANDSATELLITEBEGANSWITCHINGTOOTT,CHOOSINGITASTHEIRMAINVIDEOPLATFORMMEANWHILE,SOMESUBSCRIBERSDOWNGRADEDTHEIRPAYTVSERVICEFROMAPREMIUMTOREGULARPACKAGEBANERJEEETAL,2014THEFORMERCHANGEISREFERREDTOAS“CORDCUTTING,”WHILETHELATTERIS“CORDSHAVING”SUCHCHANGESALSOOCCURREDINTHEKOREANVIDEOPLATFORMMARKET,WHEREBYTHEGROWTHOFGLOBALANDLOCALOTTSERVICESSUCHAS“YOUTUBE,”“GOMTV,”AND“PANDORATV”STIMULATEDTRADITIONALTVPLATFORMPROVIDERSTOLAUNCHNETFLIXLIKEOTTSERVICESSUCHAS“TVING”AND“POOQ”ACCORDINGTOTHEUSFEDERALCOMMUNICATIONSCOMMISSIONFCC,ANOTTISOLDERVERSIONSDIMMICKETAL,1992NICHETHEORYALSOEXPLAINSANDPREDICTSTHEEXISTENCE,DISPLACEMENT,ANDEXTIRPATIONOFPLAYERSINTHEECOSYSTEMDIMMICKETAL,2000,ALONGWITHTHEINDICESOFNICHEBREADTH,NICHEOVERLAP,ANDCOMPETITIVESUPERIORITYTHEPURPOSEOFTHISRESEARCHISTOEXPLAINTHECOMPETITIONINTHEVIDEOPLATFORMMARKETANDTODRAWIMPLICATIONSFORNOTONLYOTTSERVICEPROVIDERS,BUTALSOFORTRADITIONALPAYTVPLATFORMPROVIDERSTHEFULFILLMENTOFTHISPURPOSEWILLCONTRIBUTETOBOTHPRACTICALANDACADEMICFIELDS,WITHTHELATTERCONTRIBUTIONDERIVEDFROMTHELITERATURESANALYSISONNICHETHEORYTHATISPRESENTEDINTHISPAPER2THEORETICALBACKGROUNDANDRESEARCHQUESTIONS21MEDIACOMPETITIONDISPLACEMENTORREINFORCEMENTEFFECTTHEEMERGENCEOFNEWMEDIAHASNOTONLYAFFECTEDCONSUMERS’MEDIAUSAGEPATTERNS,BUTITHASALSOCHANGEDTHERESEARCHFIELD–ESPECIALLYREGARDINGITSRELATIONSHIPWITHOLDERMEDIAPREVIOUSSTUDIESONTHERELATIONSHIPBETWEENNEWANDOLDMEDIACANBEDIVIDEDINTOTWOMAJORSTREAMSTHEFIRSTSTREAMISALONGSTANDINGMEDIADISPLACEMENTEFFECTTHATWASINTRODUCEDBYLAZASFELD1940,AFTERHEPERFORMEDPIONEERINGRESEARCHONTHEDISPLACEMENTEFFECTOFRADIOONTHEPRINTMEDIASINCETHEN,MANYRESEARCHERSHAVETRIEDTOEXAMINEDISPLACEMENTEFFECTSWITHTHEADVENTOFNEWTECHNOLOGIESSUCHASTV,CABLETV,VCR,INTERNET,THESMARTPHONE,ANDTHOSETHATAREUSEDINCOMPUTERMEDIATEDCOMMUNICATIONTHEDISPLACEMENTEFFECTISBASEDONTHELIMITEDAMOUNTOFTIMETHATACONSUMERHASTOSPENDONMEDIACONSUMPTIONDUTTABERGMAN,2004PREVIOUSRESEARCHONTHEDISPLACEMENTEFFECTASSUMEDA“ZEROSUMGAME”REGARDINGTHECOMPETITIONFORTHETIMETHATCONSUMERSCANSPENDONAMEDIUMNEWMEDIACANSUCCEEDONLYBYDIVERTINGRESOURCESFROMTHEOLDERMEDIADIMMICK,1997,ANDDISPLACEMENTOCCURSWHENTHEEMERGENCEOFNEWMEDIAREDUCESACONSUMER’STIMEALLOCATIONTOWARDEXISTING,OLDERMEDIADUTTABERGMAN,2004KIMETAL,2013MCCOMBSANDNOLAN,1992THISEFFECTCANBEEXPLAINEDBYTHEPRINCIPLEOFRELATIVECONSTANCYMCCOMBSOKAZAKIANDHIROSE2009EXAMINEDMEDIADISPLACEMENTEFFECTSBETWEENTRADITIONALMEDIA,PC,ANDMOBILEINTERNET,USINGSEVERALSPECIFICSCENARIOSSUCHAS“DININGOUT”AND“TRAVELPLANNING”TOMEASURETHEEFFECTSINJAPANSTEMPELETAL2000FOUNDTHATTHECONSUMPTIONOFINTERNETNEWSCONTENTLEDTOADECREASEINTHEAMOUNTOFTIMETHATPEOPLEUSEDTRADITIONALMEDIATOACCESSTHENEWSCHOI2013CONCLUDEDTHATTHECONSUMPTIONOFTRADITIONALTELEVISIONPROGRAMMINGDECREASEDASPEOPLEBEGANUSINGDIGITALMULTIMEDIABROADCASTINGDMBANDSMARTPHONEAPPLICATIONSTOWATCHREALTIMEBROADCASTING,ASWELLASUSERCREATEDCONTENTUCCANDVODCONTENTANDKIMETAL2013EXAMINEDSMARTPHONEUSAGETOSEEWHETHERTHEUSEOFRADIOANDNEWSPAPERAPPSRESULTEDINADECREASEDUSAGETHATOFTRADITIONALFORMS,ANDWHETHERACCESSINGTHEINTERNETANDGAMECONTENTSONASMARTPHONERESULTEDINADECREASEDUSEOFPCSFORTHESAMEPURPOSESSIMILARTOTHEDISPLACEMENTEFFECT,BUTPRESENTINGASLIGHTLYDIFFERENTPERSPECTIVE,IS“FUNCTIONALALTERNATIVE”THERESEARCHERSWHOARGUEINFAVOROFFUNCTIONAL

簡介：MOBILEHEALTHCARERESEARCHBASEDONJADEAGENTANDANDROIDPLATFORMYANGZHIHAITRANSPORTATIONMANAGEMENTCOLLEGEDALIANMARITIMEUNIVERSITYDALIAN,LIAONING,116026,CHINAYANGZHIHAI302163COMYUWEIHONG,CHENYAN,LITAOYINGTRANSPORTATIONMANAGEMENTCOLLEGEDALIANMARITIMEUNIVERSITYDALIAN,LIAONING,116026,CHINAABSTRACTCURRENTLY,HEALTHCAREPLAYSANINCREASINGLYIMPORTANTROLEINOURLIFE,MEANWHILETRADITIONALHEALTHCAREISNOTCONVENIENTFORTHECOLLECTIONOFMEDICALINFORMATIONANDTHEMEDICALTREATMENTWHENHEALTHPROBLEMSCOMEOUTTIMELYINORDERTOACHIEVETHEPURPOSEOFMEDICALCAREMOBILITY,WECOMBINEMULTIAGENTTECHNOLOGYWITHADVANCEDMOBILECOMMUNICATIONTECHNOLOGY,ANDDEPLOYJADEAGENTTOTHEANDROIDHANDHELDDEVICESANDDESIGNAMOBLIEHEALTHCARESYSTEMBASEDONJADEAGENTANDANDROIDPLATFORMANDROIDHANDHELDDEVICENODECANRECEIVETHEDATACOLLECTED,THENTRANSMITTOTHEREMOTESERVERTOOBTAININFORMATIONONMEDICALTREATMENTPLAN,PUSHTOTHESERVERTHROUGHUSINGTHEUSERSMOBILEPHONETHESYSTEMCANPROVIDEUSERSWITHAHEALTHEMERGENCYFUNCTIONANDEVENTONTIMETOPROVIDEUSERSWITHTIMELYTREATMENTTHROUGHTHEUSERSDAILYHEALTHINFORMATIONMANAGEMENTKEYWORDSJADEAGENTJADELEAPADDONANDROIDPLATFORMSYSTEMINTEGRATIONSENSORIINTORODUCTIONINRECENTLYYEARS,WITHTHEFASTPACEOFOURLIVES,PEOPLETENDTOBEMOREANDMOREPRESSURED,LOTSOFPEOPLEAREFACINGHEALTHPROBLEMSANDMANYOFTHEMAREINAHEALTHYCONDITION,SUCHASHYPERTENSION,HEARTDISEASEANDOTHERCHRONICCONDITIONSBUTTHEYMAYHAVELITTLETIMETOEXAMINETHOROUGHLY,ITAPPEARSTOBETHATALOTOFHIDDENDISEASEISDIFFICULTTOFINDOUT,WHICHCAUSESAGOODDEALOFUNRECOVERABLELOSSSODESIGNINGAPHYSIOLOGICALINFORMATIONATANYTIMETHROUGHTHENETWORKDRIVETOAREMOTEMONITORINGCENTERFORHEALTHCAREANALYSIS,PROCESSINGANDVIEWINGOUROWNHEALTHINDEXWITHTHEPOPULARITYOFANDROIDSMARTPHONES,PORTABLEPHONESBECAMEALLESSENTIALGOODS,SMARTPHONECOMMUNICATION,POSITIONING,STORAGE,DISPLAYGIVEUSERGREATCONVENIENCEGIVENTHESEFAVORABLECONDITIONSOFTHEPHONE,THEPHONETOTHEREMOTEMEDICALMONITORINGSYSTEMISALSOANEFFECTIVEWAYTOIMPROVETHEQUALITYOFSERVICEOFREMOTEMEDICALMONITORINGWITHTHEGRADUALMATUREFROMTHEORYTOAPPLICATION,ESPECIALLYFIPAAGENTTECHNOLOGYANDTHEEMERGENCEOFAVARIETYOFDEVELOPMENTPLATFORMSFORTHEDEVELOPMENTOFMULTIAGENTSYSTEMHASINJECTEDNEWVIGORANDVITALITY,MULTIAGENTSYSTEMSINTELLIGENCE,COLLABORATION,SECURITY,COMMUNICATIONS,ETCINCOMPAREDWITHTRADITIONALINFORMATIONSYSTEMSHAVEADISTINCTADVANTAGECOMPAREDWITHOTHERPLATFORMS,JADEININTELLIGENT,FLEXIBILITYANDPRACTICALITYSCALABILITYHASOBVIOUSADVANTAGESJADEFOLLOWSTHEFIPASPECIFICATIONS,PROVIDESTHEBASICNAMINGSERVICES,YELLOWPAGESSERVICE,COMMUNICATIONMECHANISM,WHICHGREATLYSIMPLIFIESTHEDEVELOPMENTOFALLASPECTSOFMULTIAGENTSYSTEM1INTHISPAPER,WEDESIGNANARCHITECTUREBASEDONANDROIDMOBILEANDAGENTENVIRONMENTFORSENDINGUSERSCONTEXTINFORMATIONANDQUERYTHEMESSAGEFROMTHEAGENTINTHECOMPUTERBYUSINGWIRELESS,IEPULSE,BLOODPRESSURE,ETC,TOCAREGIVERSSUCHASDOCTORSANDNURSES,WEUSETHEAGENTANDINFERENCETECHNOLOGIESANDWEWILLANALYZETHEBOTTLENECKSOFJADEAGENTONLIGHTWEIGHTHANDHELDDEVICETOACHIEVE,ANDTHEUSEOFINTERMEDIATETECHNOLOGYTHOUGHTJADELEAPANDSEPARATECONTAINERS,INTEGRATEDUSEOFINTERACTIVEPLATFORMSANDAGENTANDROIDPLATFORM,THECOMBINATIONOFFEATURES,ANDDEVELOPMENTBASEDONAGENTANDROIDPLATFORMFORMOBILEHEALTHCARESYSTEMSIIRELATEDWORKOURWORKRELATEDTOMANYASPECTSOFTHEPERVASIVEANDUBIQUITOUSCOMPUTINGFOROURRESEARCH,WEINVESTIGATEMANYTECHNOLOGIESWEMAINLYUSETECHNOLOGIESASFOLLOWSAJADEAGENTJADE2ISAPOPULAROPENSOURCEFRAMEWORKTHATFACILITATESTHEDEVELOPMENTOFINTEROPERABLEINTELLIGENTMULTIAGENTSYSTEMSEACHRUNNINGINSTANCEOFTHEJADERUNTIMEENVIRONMENTSISCALLEDACONTAINERASITCANCONTAINSEVERALAGENTSTHESETOFACTIVECONTAINERSISCALLEDAPLATFORMJADETOFITTHECONSTRAINTSOFMOBILEENVIRONMENTSWITHLIMITEDRESOURCESINTERMSOFREQUIREDMEMORYANDPROCESSINGPOWERMOREOVERJADEIMPLEMENTSFIPASPECIFICATIONSINORDERTOSUPPORTVERYEXPRESSIVEANDCOMPLEXCOMMUNICATIONSINPARTICULARTHEFIPAACLCOMMUNICATIVEACTLIBRARYSPECIFICATIONALLOWSTOGIVESEMANTICSTOTHECOMMUNICATIONWITHOUTTAKINGINTOACCOUNTTHEMESSAGECONTENTANDTHEFIPAINTERACTIONPROTOCOLSPECIFICATIONSALLOWSTOBUILDBOTHSIMPLEINTERACTIONIEREQUESTRESPONSEANDMORECOMPLEXONESIECONTRACTNETUSEFULFORNEGOTIATINGTASKSAMONGAPOPULATIONOFAGENTSBANDROIDANDROIDINTRODUCESACOMPLETELYNEWVIRTUALMACHINECALLEDDALVIK,PARTICULARLYOPTIMIZEDFORLOWMEMORYREQUIREMENTANDDESIGNEDTOALLOWMULTIPLEVMINSTANCESTORUNATONCE3THATPROVIDESANEXECUTIONENVIRONMENTWHEREEACHAPPLICATIONRUNSINIT’SOWNLINUXPROCESSTHEANDROID____________________________________9781479932795/14/3100?2014IEEE???PARAMETERSCOULDBEINCLUDEDBYUSINGTHEPUTEXTRAMETHODOFINTENTINTHEACTIVITYWESHOULDCREATEACUSTOMBROADCASTRECEIVERINSTANCEANDUSETHEINTENTFILTERMECHANISMTORECEIVETHEBROADCASTFROMTHEAGENTVTHEMOBILEHEALTHCARERESEARCHBASEDONJADEAGENTANDANDROIDPLATFORMASYSTEMARCHITECTUREINORDERTOACHIEVETHEPURPOSEOFREMOTEMEDICALMONITORING,THEPROJECTISDESIGNEDFORREMOTEMEDICALMONITORINGSYSTEMBYFUNCTIONCONSISTSOFFIVEPARTSCOLLECTINGPHYSIOLOGICALDATA,TRANSMITTINGPHYSIOLOGICALDATA,PROCESSINGOFPHYSIOLOGICALDATA,TREATMENTOFEMERGENCYANDSELECTINGTHETREATMENTPROGRAM6THEFIVEMAINFUNCTIONSRELATEDTOTHEWEARABLECOLLECTIONDEVICES,SMARTPHONES,REMOTESERVERSYSTEMANDTHETWOMAJORBUILDINGBLOCKSOFEFFECTIVECOORDINATIONANDFUNCTIONING,BUTALSOCONTACTINGTHEDUTIESOFGUARDIANSHIPBETWEENTHEPATIENT,MEDICALSTAFFANDPATIENTSFAMILIESCLOSELY,COOPERATINGWITHEACHOTHERTOACHIEVETHECOMMONGOALOFREMOTEMEDICALMONITORING1COLLECTINGPHYSIOLOGICALDATACOLLECTINGPHYSIOLOGICALDATAISCOLLECTEDBYAWEARABLEDEVICETOCOMPLETE,AIMEDATTHEPATIENTSTEMPERATURE,BLOODPRESSURE,PULSE,THESTATEOFMOTIONOROTHERCHRONICDISEASES,SUCHASLONGTERMCARENEEDSOFPATIENTSWITHTHEMOSTCOMMONPHYSIOLOGICALMONITORINGTHROUGHTHECORRESPONDINGDATAREADOUTDEVICEORSENSORTOGENERATEPHYSIOLOGICALDATASOURCE,ANDTHENPACKAGESASBLUETOOTHWIRELESSTECHNOLOGYTOTHEMOBILETERMINALDEVICETHROUGHTHETRANSMISSION2TRANSMITTINGPHYSIOLOGICALDATAPHYSIOLOGICALDATAISTRANSMITTEDFROMTHEACQUISITIONFRONTEND,BACKENDSERVERSIDEMOBILETERMINALANDACOMMONTIETOCOMPLETE,AIMSTOCOLLECTPHYSIOLOGICALDATACOLLECTEDFROMTHEFRONTEVENTUALLYCOMMUNICATEDANDSTOREDINTHEBACKGROUNDONTHESERVERSIDE,COMPLETETHEFOLLOWUPCARETREATMENTINTHISPROCESS,THEFRONTENDOFTHEACQUISITIONBYTHEBLUETOOTHCOMMUNICATIONWITHTHEMOBILETERMINALTHEUSEAGENT3THEPROCESSINGOFPHYSIOLOGICALDATAPROCESSINGPHYSIOLOGICALDATAISCONSISTEDWITHASIMPLEPREPROCESSINGANDINTEGRATEDBACKENDSERVERSIDEMOBILETERMINALCOMPONENTSSIMPLEPREPROCESSINGMOBILETERMINALINCLUDESPHYSIOLOGICALDATATHRESHOLDMONITORINGANDSHORTTERMSTORAGE,QUERYANDDISPLAY,WHICHBRINGSTHEMOSTCONVENIENTMOBILETERMINALDATASERVICESANDEMERGENCYALERTSTOTHEPATIENTSCOMPREHENSIVETREATMENTBACKGROUNDSERVERSIDEINCLUDESLONGTERMSTORAGEOFPHYSIOLOGICALDATA,QUERIES,GRAPHICALDISPLAYINCLUDINGINTERACTIVEINFORMATIONFROMHEALTHCONTROLAGENTBYACLNEWSANDTHEFRONTENDAGENTCLUSTERSCOMPLETED4EMERGENCYTREATMENTEMERGENCYTREATMENTEMERGENCYALERTISCOMPOSEDWITHTHEDAILYLIFEOFTHEMAINFUNCTION,PHYSIOLOGICALABNORMALITIESWARNING,EMERGENCYSITUATIONHANDLINGANDPOSITIONINGSEARCHFUNCTIONS,FINISHINGEMERGENCYRESPONSERANGESFROMTHEGENERALTOTHESERIOUSSITUATIONOFTHEVARIOUS,SUCHASREMINDINGPATIENTSTOCONTACTTHEIRFAMILIESTOLOCATE,WHICHESCORTTOTHEPATIENTSAMBULANCE?????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????FIGURE1THEFRAMEWORKOFTHESYSTEMINTHISARTICLE,ADISTRIBUTEDMULTIAGENTSYSTEMFORMOBILEHEALTHCAREHASBEENDEVELOPEDANDTHEFRAMEWORKOFTHESYSTEMISSHOWNASFIGURE1THEMAINIDEAOFTHISSYSTEMISTHATSOMEJADEAGENTTEGTHEUSERAGENTWILLBEDEPLOYEDONTHEUSER’SANDROIDPHONETHEUSERWILLSENDANDREQUESTMESSAGEFROMHISANDROIDPHONETHISREQUESTWILLREACHWIRELESSTHERESPONDERAGENTEGTHEHEALTHCONTROLAGENTANDAFTERFINISHINGTHEPROCESSINGOFTHEREQUEST,THERESPONDERAGENTWILLSENDAREPLYWITHTHERETRIEVINGRESULTSTOTHEREQUESTERANDTHERESULTSCANBESHOWNONTHEINTERFACEOFTHEUSER’SANDROIDPHONEBTHEWORKINGMECHANISMSOFTHEAGENTTHEPROPOSEDARCHITECTUREISCOMPOSEDOFUSERAGENT,BROKERAGENT,AUTHENTICATIONAGENT,COTEXTAGENT,RULEENGINEANDHEALTHCONTROLAGENTANDTHEWORKINGMECHANISMOFTHEAGENTISSHOWNASFIGURE2EACHAGENTCARRIESOUTSPECIFICTASKANDCOLLABORATIONWITHEACHOTHERVIAACLMESSAGEHEREWEFOCUSONUSERAGENTANDHEALTHCONTROLAGENTDESCRIBEDASTHEFOLLOWINGUSERAGENT’SMAINPURPOSEISTOSENDUSER’SCONTEXTINFORMATION,WHICHISRECEIVEDFROMTHESENSORSINAPERSON’SBODY,TOCONTEXTAGENTAFTERTHECONTEXTINFORMATIONISSENT,USERAGENTRECEIVERDIAGNOSISANDPRESCRIPTIONDATAFORMHEALTHCONTROLAGENTFORSENDINGTHECONTEXTINFORMATIONTOCONTEXTAGENT,USERAGENTMUSTGETMUSTGETAUTHENTICATIONPERMISSIONFROMAUTHENTICATIONAGENTINCASEOFHANDHELDDEICES,USERAGENTSHOULDUSETHEJADELEAPPERSONALJAVAVERSION,WHICHISALIGHTWEIGHTVERSION,BECAUSETHEIRRESOURCEISLIMITEDONCEUSERAGENTRECEIVESTHEDIAGNOSISANDPRESCRIPTION,ITMAINTAINSRELATIONSHIPWITHHEALTHCONTROLAGENTCONTINUALLYLIKEUSERAGENT,HEALTHCONTROLAGENTMAINPURPOSEGIVESDIAGNOSISANDPRESCRIPTIONTOUSERSWHENITRECEIVERUSERCONTEXTINFORMATION???

簡介：中文中文6150字，字，3500英文單詞，英文單詞，19500英文字符英文字符文獻出處文獻出處KIMJ,KIMS,NAMCCOMPETITIVEDYNAMICSINTHEKOREANVIDEOPLATFORMMARKETTRADITIONALPAYTVPLATFORMSVSOTTPLATFORMSJTELEMATICSTHEORYOFNICHEVIDEOPLATFORMMARKETCOMPETITIONTRADITIONALPAYTV1INTRODUCTIONNETFLIX,THEINTERNATIONALLYACCLAIMEDONLINEVIDEOPLATFORM,WASNOMINATEDINSIXCATEGORIESATTHE71STGOLDENGLOBEAWARDSIN2013,ANDWONTHEBESTPERFORMANCEBYANACTRESSINATELEVISIONDRAMAAWARDFORHOUSEOFCARDSFAMOUSFORPROVIDINGVIDEOONDEMANDVODSTREAMINGSERVICESGLOBALLY,NETFLIXHADRECENTLYCOMMENCEDPRODUCINGHOUSEOFCARDSASITSFIRSTORIGINALCONTENTTITLE,GARNERINGENOUGHATTENTIONTORECEIVETHEAWARDNETFLIXUSESTHEINTERNETTOBROADCASTVIDEOCONTENTANDISCOMMONLYREFERREDTOASOVERTHETOPOTTMEDIAMEANWHILE,HBO,AREPRESENTATIVEPREMIUMCABLEANDSATELLITETVPROVIDERINTHEUS,LAUNCHEDITSOWNOTTSERVICE“HBOGO”IN2010WHILEBOTHPROVIDERSHADFORECASTTHECHANGESINMEDIAUSAGEPATTERNSANDRECOGNIZEDTHEVALUEOFINTERNETBASEDSERVICES,NETFLIXMANAGEDTOSELLTHESAMENUMBEROFPAIDSUBSCRIPTIONSASHBOBYOCTOBER2013MOREOVER,CONSUMERSWHOWERESUBSCRIBERSOFPAYTVPLATFORMSINCLUDINGCABLEANDSATELLITEBEGANSWITCHINGTOOTT,CHOOSINGITASTHEIRMAINVIDEOPLATFORMMEANWHILE,SOMESUBSCRIBERSDOWNGRADEDTHEIRPAYTVSERVICEFROMAPREMIUMTOREGULARPACKAGEBANERJEEETAL,2014THEFORMERCHANGEISREFERREDTOAS“CORDCUTTING,”WHILETHELATTERIS“CORDSHAVING”SUCHCHANGESALSOOCCURREDINTHEKOREANVIDEOPLATFORMMARKET,WHEREBYTHEGROWTHOFGLOBALANDLOCALOTTSERVICESSUCHAS“YOUTUBE,”“GOMTV,”AND“PANDORATV”STIMULATEDTRADITIONALTVPLATFORMPROVIDERSTOLAUNCHNETFLIXLIKEOTTSERVICESSUCHAS“TVING”AND“POOQ”ACCORDINGTOTHEUSFEDERALCOMMUNICATIONSCOMMISSIONFCC,ANOTTISOLDERVERSIONSDIMMICKETAL,1992NICHETHEORYALSOEXPLAINSANDPREDICTSTHEEXISTENCE,DISPLACEMENT,ANDEXTIRPATIONOFPLAYERSINTHEECOSYSTEMDIMMICKETAL,2000,ALONGWITHTHEINDICESOFNICHEBREADTH,NICHEOVERLAP,ANDCOMPETITIVESUPERIORITYTHEPURPOSEOFTHISRESEARCHISTOEXPLAINTHECOMPETITIONINTHEVIDEOPLATFORMMARKETANDTODRAWIMPLICATIONSFORNOTONLYOTTSERVICEPROVIDERS,BUTALSOFORTRADITIONALPAYTVPLATFORMPROVIDERSTHEFULFILLMENTOFTHISPURPOSEWILLCONTRIBUTETOBOTHPRACTICALANDACADEMICFIELDS,WITHTHELATTERCONTRIBUTIONDERIVEDFROMTHELITERATURESANALYSISONNICHETHEORYTHATISPRESENTEDINTHISPAPER2THEORETICALBACKGROUNDANDRESEARCHQUESTIONS21MEDIACOMPETITIONDISPLACEMENTORREINFORCEMENTEFFECTTHEEMERGENCEOFNEWMEDIAHASNOTONLYAFFECTEDCONSUMERS’MEDIAUSAGEPATTERNS,BUTITHASALSOCHANGEDTHERESEARCHFIELD–ESPECIALLYREGARDINGITSRELATIONSHIPWITHOLDERMEDIAPREVIOUSSTUDIESONTHERELATIONSHIPBETWEENNEWANDOLDMEDIACANBEDIVIDEDINTOTWOMAJORSTREAMSTHEFIRSTSTREAMISALONGSTANDINGMEDIADISPLACEMENTEFFECTTHATWASINTRODUCEDBYLAZASFELD1940,AFTERHEPERFORMEDPIONEERINGRESEARCHONTHEDISPLACEMENTEFFECTOFRADIOONTHEPRINTMEDIASINCETHEN,MANYRESEARCHERSHAVETRIEDTOEXAMINEDISPLACEMENTEFFECTSWITHTHEADVENTOFNEWTECHNOLOGIESSUCHASTV,CABLETV,VCR,INTERNET,THESMARTPHONE,ANDTHOSETHATAREUSEDINCOMPUTERMEDIATEDCOMMUNICATIONTHEDISPLACEMENTEFFECTISBASEDONTHELIMITEDAMOUNTOFTIMETHATACONSUMERHASTOSPENDONMEDIACONSUMPTIONDUTTABERGMAN,2004PREVIOUSRESEARCHONTHEDISPLACEMENTEFFECTASSUMEDA“ZEROSUMGAME”REGARDINGTHECOMPETITIONFORTHETIMETHATCONSUMERSCANSPENDONAMEDIUMNEWMEDIACANSUCCEEDONLYBYDIVERTINGRESOURCESFROMTHEOLDERMEDIADIMMICK,1997,ANDDISPLACEMENTOCCURSWHENTHEEMERGENCEOFNEWMEDIAREDUCESACONSUMER’STIMEALLOCATIONTOWARDEXISTING,OLDERMEDIADUTTABERGMAN,2004KIMETAL,2013MCCOMBSANDNOLAN,1992THISEFFECTCANBEEXPLAINEDBYTHEPRINCIPLEOFRELATIVECONSTANCYMCCOMBSOKAZAKIANDHIROSE2009EXAMINEDMEDIADISPLACEMENTEFFECTSBETWEENTRADITIONALMEDIA,PC,ANDMOBILEINTERNET,USINGSEVERALSPECIFICSCENARIOSSUCHAS“DININGOUT”AND“TRAVELPLANNING”TOMEASURETHEEFFECTSINJAPANSTEMPELETAL2000FOUNDTHATTHECONSUMPTIONOFINTERNETNEWSCONTENTLEDTOADECREASEINTHEAMOUNTOFTIMETHATPEOPLEUSEDTRADITIONALMEDIATOACCESSTHENEWSCHOI2013CONCLUDEDTHATTHECONSUMPTIONOFTRADITIONALTELEVISIONPROGRAMMINGDECREASEDASPEOPLEBEGANUSINGDIGITALMULTIMEDIABROADCASTINGDMBANDSMARTPHONEAPPLICATIONSTOWATCHREALTIMEBROADCASTING,ASWELLASUSERCREATEDCONTENTUCCANDVODCONTENTANDKIMETAL2013EXAMINEDSMARTPHONEUSAGETOSEEWHETHERTHEUSEOFRADIOANDNEWSPAPERAPPSRESULTEDINADECREASEDUSAGETHATOFTRADITIONALFORMS,ANDWHETHERACCESSINGTHEINTERNETANDGAMECONTENTSONASMARTPHONERESULTEDINADECREASEDUSEOFPCSFORTHESAMEPURPOSESSIMILARTOTHEDISPLACEMENTEFFECT,BUTPRESENTINGASLIGHTLYDIFFERENTPERSPECTIVE,IS“FUNCTIONALALTERNATIVE”THERESEARCHERSWHOARGUEINFAVOROFFUNCTIONAL

簡介：COMPETITIVEDYNAMICSINTHEKOREANVIDEOPLATFORMMARKETTRADITIONALPAYTVPLATFORMSVSOTTPLATFORMSJUNGHWANKIMA,SEONGCHEOLKIMB,?,CHANGINAMCAINTERNETRESEARCHTEAM,NAVER,REPUBLICOFKOREABSCHOOLOFMEDIAANDCOMMUNICATION,KOREAUNIVERSITY,REPUBLICOFKOREACDEPARTMENTOFBUSINESSANDTECHNOLOGYMANAGEMENT,KAIST,REPUBLICOFKOREAARTICLEINFOARTICLEHISTORYRECEIVED15JANUARY2015RECEIVEDINREVISEDFORM28APRIL2015ACCEPTED25JUNE2015AVAILABLEONLINE26JUNE2015KEYWORDSOVERTHETOPOTTTHEORYOFNICHEVIDEOPLATFORMMARKETCOMPETITIONTRADITIONALPAYTVABSTRACTNETFLIXISCOMMONLYREFERREDASANOVERTHETOPOTTMEDIA,ANDITTAKESAROLEOFAVIDEOPLATFORMCHANGINGTHEMARKETTHEPURPOSEOFTHISRESEARCHISTOEXPLAINTHECOMPETITIONINKOREANVIDEOPLATFORMMARKET,INPARTICULARCOMPETITIONBETWEENTRADITIONALPAYTVANDOTTINTHISSTUDY,THETHEORYOFTHENICHEISADOPTEDTOEXPLAINTHECOMPETITIVEDYNAMICSINVIDEOPLATFORMMARKETINKOREATHISTHEORYISAUNIQUEFRAMEWORKTOCONCEPTUALIZEANDEMPIRICALLYMEASURETHEIMPACTOFNEWMEDIAONTHEOLDONEITEXPLAINSANDPREDICTSTHEEXISTENCE,DISPLACEMENT,ANDEXTIRPATIONOFPLAYERSINTHEECOSYSTEMTOMAKEUPFORTHEPREVIOUSRESEARCHES,MULTIPLERESOURCESSUCHASGRATIFICATIONANDTIMESPENTUSINGMEDIAAREMEASUREDINTHISSTUDYTHERESULTINDICATESTHATTHECASEOFTHEKOREANMARKETWASSIGNIFICANTLYDIFFERENTFROMTHECASEOFAMERICA,INTHATCOMPETITIONBETWEENTRADITIONALPAYTVANDOTTWASNOTSEVERE?2015ELSEVIERLTDALLRIGHTSRESERVED1INTRODUCTIONNETFLIX,THEINTERNATIONALLYACCLAIMEDONLINEVIDEOPLATFORM,WASNOMINATEDINSIXCATEGORIESATTHE71STGOLDENGLOBEAWARDSIN2013,ANDWONTHEBESTPERFORMANCEBYANACTRESSINATELEVISIONDRAMAAWARDFORHOUSEOFCARDSFAMOUSFORPROVIDINGVIDEOONDEMANDVODSTREAMINGSERVICESGLOBALLY,NETFLIXHADRECENTLYCOMMENCEDPRODUCINGHOUSEOFCARDSASITSFIRSTORIGINALCONTENTTITLE,GARNERINGENOUGHATTENTIONTORECEIVETHEAWARDNETFLIXUSESTHEINTERNETTOBROADCASTVIDEOCONTENTANDISCOMMONLYREFERREDTOASOVERTHETOPOTTMEDIAMEANWHILE,HBO,AREPRESENTATIVEPREMIUMCABLEANDSATELLITETVPROVIDERINTHEUS,LAUNCHEDITSOWNOTTSERVICE‘‘HBOGO’’IN2010WHILEBOTHPROVIDERSHADFORECASTTHECHANGESINMEDIAUSAGEPATTERNSANDRECOGNIZEDTHEVALUEOFINTERNETBASEDSERVICES,NETFLIXMANAGEDTOSELLTHESAMENUMBEROFPAIDSUBSCRIPTIONSASHBOBYOCTOBER2013MOREOVER,CONSUMERSWHOWERESUBSCRIBERSOFPAYTVPLATFORMSINCLUDINGCABLEANDSATELLITEBEGANSWITCHINGTOOTT,CHOOSINGITASTHEIRMAINVIDEOPLATFORMMEANWHILE,SOMESUBSCRIBERSDOWNGRADEDTHEIRPAYTVSERVICEFROMAPREMIUMTOREGULARPACKAGEBANERJEEETAL,2014THEFORMERCHANGEISREFERREDTOAS‘‘CORDCUTTING,’’WHILETHELATTERIS‘‘CORDSHAVING’’SUCHCHANGESALSOOCCURREDINTHEKOREANVIDEOPLATFORMMARKET,WHEREBYTHEGROWTHOFGLOBALANDLOCALOTTSERVICESSUCHAS‘‘YOUTUBE,’’‘‘GOMTV,’’AND‘‘PANDORATV’’STIMULATEDTRADITIONALTVPLATFORMPROVIDERSTOLAUNCHNETFLIXLIKEOTTSERVICESSUCHAS‘‘TVING’’AND‘‘POOQ’’ACCORDINGTOTHEUSFEDERALCOMMUNICATIONSCOMMISSIONFCC,ANOTTISDEFINEDASANONLINEVIDEODISTRIBUTORTHATDELIVERSVIDEOPROGRAMMINGCONTENTTOCONSUMERSOVERTHEINTERNETFCC,2013INTHEUS,THETOTALNUMBEROFOTTHTTP//DXDOIORG/101016/JTELE20150601407365853/?2015ELSEVIERLTDALLRIGHTSRESERVED?CORRESPONDINGAUTHOREMAILADDRESSHIDDENTREESKOREAACKRSKIMTELEMATICSANDINFORMATICS332016711–721CONTENTSLISTSAVAILABLEATSCIENCEDIRECTTELEMATICSANDINFORMATICSJOURNALHOMEPAGEWWWELSEVIERCOM/LOCATE/TELETELEVISIONPROGRAMMINGDECREASEDASPEOPLEBEGANUSINGDIGITALMULTIMEDIABROADCASTINGDMBANDSMARTPHONEAPPLICATIONSTOWATCHREALTIMEBROADCASTING,ASWELLASUSERCREATEDCONTENTUCCANDVODCONTENTANDKIMETAL2013EXAMINEDSMARTPHONEUSAGETOSEEWHETHERTHEUSEOFRADIOANDNEWSPAPERAPPSRESULTEDINADECREASEDUSAGETHATOFTRADITIONALFORMS,ANDWHETHERACCESSINGTHEINTERNETANDGAMECONTENTSONASMARTPHONERESULTEDINADECREASEDUSEOFPCSFORTHESAMEPURPOSESSIMILARTOTHEDISPLACEMENTEFFECT,BUTPRESENTINGASLIGHTLYDIFFERENTPERSPECTIVE,IS‘‘FUNCTIONALALTERNATIVE’’THERESEARCHERSWHOARGUEINFAVOROFFUNCTIONALALTERNATIVEEXPLAINTHATTHELEVELOFGRATIFICATION,WHICHDEPENDSONTHETYPEOFSERVICESTHATTHEMEDIUMPROVIDES,RESULTSINDIFFERENTMEDIAUSAGEPATTERNSCHA,2013DUTTABERGMAN,2004LIN,1999,2001NAMANDBARNETT,2010OKAZAKIANDHIROSE,2009ACCORDINGLY,TWOMEDIAWITHSIMILARCONTENTUSUALLYSATISFYACONSUMER’SMOTIVATIONINTHESAMEWAY,RESULTINGINADISPLACEMENTEFFECTCHA2013EXAMINEDTHEPREDICTORSOFTVANDONLINEVIDEOPLATFORMUSESHEFOUNDTHATTHEMORETHATCONSUMERSPERCEIVEONLINEVIDEOPLATFORMSASDIFFERENTFROMTVINTERMSOFTHEWAYTHATTHEYSATISFYTHEIRNEEDS,THEMORELIKELYTHEYWILLBETOUSEONLINEVIDEOPLATFORMSRECENTLY,SOMERESEARCHERSALSOHAVEBEENINTERESTEDINOTTMARKETBANERJEEETAL2013UTILIZEDLONGITUDINALSURVEYPANELDATATOREVEALTHETRANSITIONAMONGTHEOTTSEGMENTSSUCHAS‘‘CORDLOYALISTS’’,‘‘NONPAYTV’’,AND‘‘CORDCOUPLERS’’ESPECIALLY,THEYFOUNDAGE,ANNUALINCOME,ANDRACE/ETHNICITYDETERMINEHOWHOUSEHOLDSCHOOSEOTTSEGMENTATIONSGIMPEL2015INTERVIEWED22EXECUTIVESATKEYPOSITIONSINTHEVIDEOVALUECHAINTOPROVEBIGQUESTIONSTHEQUESTIONSRELATEDTOTHECOMPETITIONBETWEENPAYTVANDOTTARENOTONLYBELONGINGTOAMERICABUTALSOEUROPEBACCARNEETAL,2013,LATINAMERICAGANUZAANDVIECENS,2014LIN2001ALSOADDRESSEDTHEDISPLACEMENTEFFECTBETWEENTHEINTERNETANDTRADITIONALMEDIAFIDLER1997,HOWEVER,ARGUEDAGAINSTTHEEXISTENCEOFAPERFECTSUBSTITUTIONBETWEENNEWANDOLDMEDIAINSTEAD,HEPROPOSEDTHATTHEMEDIACOEVOLVEANDCOEXISTTHROUGHTRANSFORMATIONANDTHEPRINCIPLEOF‘‘DELAYEDADOPTION’’FIDLERALSOBELIEVEDTHATTHESUBSTITUTI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