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1、HadoopGIS:AHighPerformanceSpatialDataWarehousingSystemoverMapReduceAblimitAji1FushengWang2HoangVo1RubaoLee3QiaolingLiu1XiaodongZhang3JoelSaltz21DepartmentofMathematicsandComputerScience,EmoryUniversity2DepartmentofBiomedicalInformatics,EmoryUniversity3DepartmentofComputerScienceandEngineering,TheOh
2、ioStateUniversityABSTRACTdiscoveries.Forexample,LocationBasedSocialNetworks(LB-SNs)areutilizinglargeamountsofuserlocationinformationtoSupportofhighperformancequeriesonlargevolumesofspatialprovidegeo-marketingandrecommendationservices.Socialsci-databecomesincreasinglyimportantinmanyapplicationdomain
3、s,entistsarerelyingonsuchdatatostudydynamicsofsocialsystemsincludinggeospatialproblemsinnumerousfields,locationbasedandunderstandhumanbehavior.services,andemergingscientificapplicationsthatareincreasinglyTherapidgrowthofspatialdataisdrivenbynotonlyindustrialdata-andcompute-intensive.Theemergenceofmas
4、sivescalespa-applications,butalsoemergingscientificapplicationsthatarein-tialdataisduetotheproliferationofcosteffectiveandubiquitouscreasinglydata-andcompute-intensive.Withtherapidimprove-positioningtechnologies,developmentofhighresolutionimagingmentofdataacquisitiontechnologiessuchashigh-resolution
5、tis-technologies,andcontributionfromalargenumberofcommunitysueslidescannersandremotesensinginstruments,ithasbecomeusers.Therearetwomajorchallengesformanagingandqueryingmoreefficienttocaptureextremelylargespatialdatatosupportmassivespatialdatatosupportspatialqueries:theexplosionofspa-scientificresearc
6、h.Forexample,digitalpathologyimaginghastialdata,andthehighcomputationalcomplexityofspatialqueries.becomeanemergingfieldinthepastdecade,whereexaminationInthispaper,wepresentHadoop-GISascalableandhighper-ofhighresolutionimagesoftissuespecimensenablesnovel,moreformancespatialdatawarehousingsystemforrun
7、ninglargescaleeffectivewaysofscreeningfordisease,classifyingdiseasestates,spatialqueriesonHadoop.Hadoop-GISsupportsmultipletypesunderstandingdiseaseprogressionandevaluatingtheefficacyofofspatialqueriesonMapR
