可拆分工作的平行机排序问题.研究

《可拆分工作的平行机排序问题.研究》由会员上传分享，免费在线阅读，更多相关内容在教育资源-天天文库。

1、复旦人学硕上毕业论文可拆分rT作的、F行机排序问题研究AbstractParallelmachinescheduling(PMS)iswidelyusedinmemodenlmanufactu—ngindusny柚dserviceindustⅨESpecially’t11eproblemisextelldedtoPMSwimsplittingjobstosolVeproblemsinmaSsproductionofstandardproducts．wimt11reepa豫matersmetllod，theprobl锄isnotedas己IsP却&印圳C咄．W

2、itllt11ese呻timenotequalO，tlleprobl锄isNP-h砌胁epaperfocusesonmeimproV锄ent锄daIlalySisofh砌SticsandweelIlployComp“tiVemtiomethodtoeValuatemeperf．0彻aceofourhe嘶stics，、池iChiswellacc印tedbymescholars．T}leresearchh嬲seVeralfollowingcontributions：AstoPMSwimSplittingjobs锄dind印eIldentsetuptime’1．T

3、hep印erproVidesabe钍ermechallismtosolVethesmaUbatchproblembyiIIlproVingnlesecondperiodoftlleori舀nalmemod．witllmes锄eschedulingmlcSofmefirStperiod，weimpr0VenleworstcaseofeXistingmetllods．Concretely'weimproveLsu，scompertiveratio缸衄ma)【{3／2一l／(4M一4)，5／3—1／M)toNLsu，sI34519／3lm觚1互一ij历’；一j万五

4、f，LBT，sl24M一2。33M+2J，L廿ls，3M3M一4、3Mm觚t互而，互砀i

5、}t0NLBT’s互而．、2M+l’2M一2’【o州L廿ls2M+l·2．ForSmallBatchpfoblemswheIlM=2，webringouttlleLKTmemod，schedulingaCcordingto鸣+p，(七≥1)inme6rstp舐od，tllecompetitiveratioofwllichisrelatedt0后(七≥n．w11ilekequals3，wederiveacompetitiverati。。f号，whichisbetterma

6、Ilthatofa11yeXistingmemodwheIlM=2．3．ForLa唱eBatchproblemswhellM=2，tllepaperproposesnlataIlyn0一delyschededulinga11dSplittingmethodc柚reachtheoptimals01utiont0La略eBatchproblem．4．Thepaperbringsoutmoremetllodsa11dreSultsforLa玛eBatchProbl锄ingeneralcase．Besides，wedevelopmew。rStcasetomaX{3／

7、2—1／(4M一4)，5／3一l／M)，a11dmal【eitthes锄eforbothSmallBatChaIldLa略eBatchproblems．AstoPMSwilhsplittingjobsaIldindependentsetuptime，5．T11ep印erd嘶Vessevemlheuristicsa11d百Vegeneralworst—case觚alysisa11ddrawsmeconclusionthatfortheproblemwitll勘≤口乃，DLSSmetllodhaSa复旦大学硕上毕业论文可拆分工作的平行机排序问题研究c。mpeti

8、tiverati。lessm觚(1+口)(2一击)a11d。L1Tmeth。dhasac。mpetitiverati。lessmaIl(1+口)(2一云备)．F。raspecialcasewheIl嘞=。，DmetllodhaSacompetitiveratiolessman(1+训．Keywords：splittingjobs，parallelmacllinesscheduling(PMS)，heuristic，worSt-casea11alysis，CompetitiVeratioChineseLibraryClassificationNO．：C934复

9、旦大学硕上毕业论文可拆分工作的，F行机排序问题研究1