JAM: Java agents for Meta-Learning over Distributed Databases
JAM: Java agents for Meta-Learning over Distributed Databases
JAM: Java agents for Meta-Learning over Distributed Databases
You also want an ePaper? Increase the reach of your titles
YUMPU automatically turns print PDFs into web optimized ePapers that Google loves.
Pastpaymentin<strong>for</strong>mationofthetransactor Geographicin<strong>for</strong>mation,thatis,in<strong>for</strong>mationregardingthelocationswherethetrans- Theamountofthetransaction<br />
Acode<strong>for</strong>otherrecent\non-monetary"transactiontypesper<strong>for</strong>medbythetransactor Anindustrystandardcode<strong>for</strong>thetypeofmerchant Codes<strong>for</strong>thevalidityandthemannerofentryofthetransaction actionwasinitiatedandthelocationofthemerchantandtransactor<br />
Theageoftheaccountandthecard Othercreditcardaccountin<strong>for</strong>mation<br />
determinedseparately,thatprovidespredicitivevalueindeterminingfraudulenttransaction However,eachbankalsoincludesspeciceldscontainingimportantin<strong>for</strong>mation,theyhave patterns.Theintegrationofthisin<strong>for</strong>mationacrossseparatelylearnedclassiersateach Itisinterestingtonotethatmostofthisin<strong>for</strong>mationisindeedcapturedbyeachbank. Thefraudlabel(thetransactionwaseitherfraudulentorlegitimate) CondentialandProprietaryFieldswhichpotentiallycarryotherindicators)<br />
BankB: MethodI:LearnalocalmodelusingPFeldsandexchange.Let'sassumethat banksiteisanon-trivialproblem,calleddataschemaintegrationproblem. thefrauddetectionmodellearnedinBankAincludesthePFelds.Let'salsoassumethat ofthisdiscussion,wedistinguishtwoseparatedatasetsfromtwobankscalledBankAand thedataattheBankBsitedonotincludetheseeldsandhencetheclassiercannotdeal Wedescribetwoapproaches<strong>for</strong>handlingthese\proprietaryelds"(PF).Forpurposes<br />
withthem.Then,BankBwillnotbeabletouseBankA'smodeldirectlyunless: 2.BankBsimplyincludesnullvaluesina\bogus"PFeldaddedtotheBankBdataset. 1.BankB\massages"itsdatatoincludePFvalues.Todothis,BankBmustimport, value<strong>for</strong>BankB.Afterall,BankBdidnotincludetheminitsauthorizationsystem andpresumablyotherattributes(includingthecommonones)dohavepredictivevalue. EventhoughthePFeldsmayhavehighpredictivevalue<strong>for</strong>BankA,theyareofno inallcases,andmaynotbedesirablebyBankA. alongwiththeremoteclassier,asecure/trustedagentfromBankAthatcancompute values<strong>for</strong>themissingPF'sintheBankB'sdata.Thishowevermaynotbepossible<br />
11
Change language