Predicting Scientific Data Transfer Characteristics · PDF filePredicting Scientific Data...
Transcript of Predicting Scientific Data Transfer Characteristics · PDF filePredicting Scientific Data...
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PredictingScientificDataTransferCharacteristicsWilliamAgnew,MichaelFischer,KyleChard,IanFoster
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GlobusAllowingcommunicationandcollaborationforusersaroundtheworld.-Kyle Chard
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LongTailedDistributions
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EndpointPredictionHeuristics
• History:Themostlikelysource(S)/destination(D)endpointasthemostrecentS/Dendpointusedbyauser
• MarkovChain:AtransitionmatrixoftheobservedprobabilitiesofusingeachendpointasaS/DconditionedonaparticularendpointbeingpreviouslyusedasaS/D
• MostUniqueUsers:ThemostlikelyS/DendpointistheS/Dendpointwiththemostuniqueusers
• Institution: ThemostlikelyS/Dendpointforauseristhemostpopularendpointatthatuser’sinstitution
• EndpointOwnership:Themostlikelyendpointisthemostrecentendpointtheusercreated
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EnsembleMethods:UsingRecurrentNeuralNetwork
• Combinemultipleheuristicsintoabetterheuristic
• Simpleexample:outputthetoprecommendationofeachheuristic
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Results:TransferAccuracy
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Results:UserAccuracy
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ColdStart:PredictionsforNewUsers
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