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ID:36503477
大小:2.27 MB
页数:55页
时间:2019-05-11
《基于数据仓库与案例推理的机组产能模型研究与应用》由会员上传分享,免费在线阅读,更多相关内容在学术论文-天天文库。
1、大连理工大学硕士学位论文基于数据仓库与案例推理的机组产能模型研究与应用姓名:张勇申请学位级别:硕士专业:控制理论与控制工程指导教师:张焕水;王伟20050301——蓬王茎篓垒壅墨塞翅笙堡塑煎堡主堑篓塑窒兰壅望~——Researchandapplicationofthroughputmodelbasedondatawarehouseandease-basedreasoningAbstractDatawarehousetechnology-hasbecomeoneoftheresearchhotspotstoday.Asakindofoptimummanagement,enterpr
2、ise’Sdatasolutionthatoffersdecisionsupports,datawarehousetechnologyhasalready'beenadoptedandfimctionedbyalotofenterprises。Case—basedreasoningisakindoflogicaldescriptionsthatusedtosolverealisticproblems.Comparingtotraditionalrule-basedsystem,ithasmanyadvantages,whiche越predigestknowledgegatheri
3、ngandaccumulateknowledgeeasily.BasedoneachmachineproductionplocessesofShanghaiBaoSteelCO,LTD。coldrollingthinstripmill,combinedwiththedevelopmemofoptimizingproductionplanningandproductionschedulingsysteminthemill,thispaperstudiedmodelbmldingtechnologythatusedtopredictmachinethroughput,andhasbu
4、ildmachinethroughputmodelbasedondatawarehouseandcase-basedreasoning.Inthispaper,datadrivenmethodhasbeenadoptedtodesigndatawarehouse:Byusingtheexisteddatathatbelongtothelegacydatabaseoftheemerpfise,thedataandtherelationshipsofthedatahavebeenreconsideredaccordingtotheawayzingfields,thesubjectsi
5、nthedatawarehousehavebeenorgmaized,the”commonalitics”ofthedataandsubjectdatainthedatawarehousehasbeendiscernedeffectivelybyusingthedatamodel,andtheattributeswhichconnecteacho妇anmngthesubjectshavebeensetup。Thismodelusesdataminingtoanalyzetheproductionconditionsofthewholecoldr0Ⅱingthinstripprod
6、uctionprocesses,andbuildslocaldatawarehouse(independentdatamart)thatusedbyproductionplanningdepartmentandproductionadministrationdepartment,usinghistoricalproductiondataoftheemerpfise,cooperatingwiththeon-siteproducer’Sexperience,buildscasebaseforthecase-basedreasoningmethod.thusrealizestakin
7、ghistoricalproductiondataandexpertexp鲥ellceasbasistopredictthemachinethroughput.Thismodele珏珏predicteachmachinethroughputaccurately。Thismodelhasthecapacityofself-learningandself-adjustability;itcallreflectthethroughputchangesduetosuchfactorsas
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