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ID:39402666
大小:410.50 KB
页数:65页
时间:2019-07-02
《基于知识的状态演算的研究与实现》由会员上传分享,免费在线阅读,更多相关内容在行业资料-天天文库。
1、江苏大学硕士学位论文基于知识的状态演算的研究与实现姓名:朱会娟申请学位级别:硕士专业:计算机应用技术指导教师:刘一松20100608江苏大学硕士学位论文AbstractReasoningaboutactionandknowledgerepresentationaleimportantresearchareasinartificialintelligence.ReasoningaboutActionhasbeenappliedinmanyareas,suchaScognitiverobotics,webservices,workflowandS
2、Oon.Themaintaskofreasoningaboutactionincludetopredicttheresultofanactionoranactionsequencegiventhesystem’sinitialstateandrulesofchanging,andtoexplainwhatactionthesystemhasexperiencedgiventhesystem’Sinitialstateandresultantstate.Modallogicisanimportanttoolforknowledgereprese
3、ntation.Usingmodaloperatortorepresentknowledge.iswell-establishedintheory,butitisanidealmodelthatrequiresunlimitedcomputingresourcesinpractice.StateCalculusisaformalizedsystemforreasoningaboutactionthatisusedtodescribethetransformationofdynamicsystems,butitcallonlyrepresent
4、theknowledgeofdynamicsystemstosomeextent.Themaincontentsandcontributionsofthisdissertationareasfollows:(1)Basedonpossibleworldsemanticsinmodallogic,weintroducethefluentdisjunctivenormalformtorepresenttheknowledge,whichenhancedStateCalculus’Sknowledgerepresentationabilityand
5、alleviatedthedifficultyinimplementingknowledgerepresentationbasedonmodallogic.(2)BasedontheStateCalculustheory,wedesignedanewlogicprogramminglanguage,STEX.111ereasoninginSTEXbyusingtheunderlyingprincipleofprogressionismoreefficientthanGolog,CongologandIndiGologbyusingtheund
6、erlyingprincipleofregressionbasedontheSituationCalculus.STEXcailprovideanumberofimportantknowledgerepresentationsandreasoningthatcannotbeachievedbyFLU》(basedOiltheFluentCalculus,andhencecarlbeappliedtoabroaderscopeofsituations.(3)W-eimplementedthepathplanningexampleofrobott
7、akingthegoldusingthe‘ogic。‘anlSTEX.Tl"mentalresultsshowthatthenewlogmprogramrmnglanguagetieexperimentalresultssllowthatthelEX.1STEXenabledagentCallupdateitsownstatebyperceivingthedynamicenvironmentalinformationanditsownaction,andachieveitsgoalthroughactionreaSoning.Keywords
8、:ReasoningaboutAction,KnowledgeRepresentation,SituationCalculus,FluentCalculus,Sta
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