一个在线拍卖系统的性能研究【外文翻译】

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1、外文翻译PerformanceInvestigationofanOn-LineAuctionSystemMaterialSource:http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.42.9402Author:JaneHillston,LeilaKloulAbstract:Thestandarddesignofon-lineauctionsystemsplacesmostofthecomputationalloadontheserverand

2、itsadjacentlinks,resultinginabottleneckinthesystem.Inthispaper,weinvestigatetheimpact,intermsoftheperformanceoftheserveranditsadjacentlinks,ofintroducingactivenodesintothenetwork.Theperformancestudyofthesystemisdoneusingthestochasticprocessalgebraformalis

3、mPEPA.1IntroductionInthispaperweinvestigatetheinterplayoftwoemergingtechnologies:activenetworksandsoftwareagentstosupportelectroniccommerce.Activenetworksareacompellingnewinitiativeinnetworking.Anactivenetworkextendsaconventionalonewiththeabilityfornetwor

4、kswitchestoprocessdataasitisbeingtransmitted.Theprocessingwhichistobeperformedcanbecustomisedbythenetworkuseronaper-applicationorevenper-messagebasis.Thisinnovationisadramaticdeparturefromtraditionalnetworkdesignwheretheemphasisisontheavoidanceofexaminati

5、onormodificationofdata.Activenetworksaresupportedbyavarietyofsoftwaretechnologies,executionenvironmentsandnodeoperatingsystems.Somerecentworkhasfocusedontheperformancegainsthatactivenetworktechnologymaybringtodistributedapplications.Examplesincludeactiver

6、eliable-multicastandcacherouting.Inon-lineauctionsaresuggestedasapplicationswhichmightbenefitfromprocessingatactivenodeswithinthenetwork.TheInternetoffersexcitingnewprospectsforelectroniccommerce,butitcannotalwaysdelivertheperformancenecessarytomakethemvi

7、able.Theelectronictransactionstakeavarietyofformsbutincreasinglythereisamovetowardsagent-basedsystemsinwhichpersonalizedsemi-autonomoussoftwareagent’sactonbehalfofconsumersorbusinesses.Inmanycasessuchsystemsrelyontheexchangeofinformationandnegotiation.Ift

8、heintegrityofsuchtransactionsistobemaintained,thereisaclearneedfortimelybehaviouroftheunderlyinginfrastructure.7Severalon-lineauctionsystemshavebeendevelopedexperimentally,suchastheAuctionBotsystemfromtheUniversityo