人工神經(jīng)網(wǎng)絡(luò) 畢業(yè)論文外文翻譯

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1、外文資料ArtificialNeuralNetworksArtificialNeuralNetworks-BasicFeaturesComposedofalargenumberofprocessingunitsconnectedbyanonlinear,adaptiveinformationprocessingsystem.Itisthebasisformodernneuroscienceresearchfindingspresented,tryingtosimulatealargeneuralnetworkprocessing,memory,

2、informationprocessingwayofinformation.Artificialneuralnetworkhasfourbasiccharacteristics:(1)non-linearnon-linearrelationshipisthegeneralcharacteristicsofthenaturalworld.Thewisdomofthebrainisanonlinearphenomenon.Artificialneuralactivationorinhibitionintwodifferentstates,thisb

3、ehaviormathematicallyexpressedasalinearrelationship.Thresholdneuronshaveanetworkwithbetterperformance,canimprovefaulttoleranceandstoragecapacity.(2)non-limitationofaneuralnetworkisusuallymoreextensiveneuronalconnectionsmade.Theoverallbehaviorofasystemdependsnotonlyonthechara

4、cteristicsofsingleneurons,andmayprimarilybyinteractionbetweenunits,connectedbythedecision.Byalargenumberofconnectionsbetweenthecellsofnon-simulatedbrainlimitations.Associativememorylimitationsofatypicalexampleofnon.(3)characterizationofartificialneuralnetworkisadaptive,self-

5、organizing,self-learningability.Neuralnetworkscannotonlydealwiththechangesofinformation,butalsoprocessinformationthesametime,nonlineardynamicsystemitselfisalsochanging.Iterativeprocessisfrequentlyusedindescribingtheevolutionofdynamicalsystems.(4)Non-convexityofthedirectionof

6、theevolutionofasystem,undercertainconditions,willdependonaparticularstatefunction.Suchasenergyfunction,anditsextremevaluecorrespondingtothestateofthesystemmorestable.Non-convexityofthisfunctionismorethanoneextremum,thissystemhasmultiplestableequilibrium,whichwillcausethesyst

7、emtotheevolutionofdiversity.Artificialneuralnetwork,neuralprocessingunitcanbeexpressedindifferentobjects,suchasfeatures,letters,concepts,orsomeinterestingabstractpatterns.Thetypeofnetworkprocessingunitisdividedintothreecategories: inputunits,outputunitsandhiddenunits.Inputun

8、itreceivingthesignalanddataoutsideworld;outputunitforprocessingtheresultsto