变分不等式问题投影收缩算法线搜索策略的改进

变分不等式问题投影收缩算法线搜索策略的改进

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1、内蒙古工业大学硕士学位论文II内蒙古工业大学硕士学位论文AbstractVariationalinequalityproblem(VIP)isabasicprobleminoperationalresearch,atthesametime,economics,ecology,engineeringscienceandfinanceandmanyfieldshaveawiderangeofapplications.Therefore,sincethe1960s,thevariationalinequalityproblemespeciallyitsnumericalcalculationmet

2、hodhasreceivedwideattentionofmanyresearchers.SuchassomeknownmethodsincludingNewtonmethod,alternatingdirectionsmethod,nearpointmethodandinterior-pointmethod,neuralnetworkandprojectionmethods,amongthem,theprojectionandcontractionmethodwiththecharacteristicsofsimpleeasytooperate,butalsogotthefavourofm

3、anyscholars.Alltheseresearchesemergeendlessly,theProjectionandContractionMethodputforwardbyBingshengHeisoneofthecategory.Thecharacteristicofprojectionandcontractionmethodisthateachiterationcomputationaregenerallysimplecalculationofsomefunctionstothefeasiblesetofprojection.Andthemainideaofthisarticl

4、eistocarryonthedeepresearchandattempttoconstructanewprojectionandcontractionmethodtosolvethevariationalinequalityproblems.Specificworkistoimprovetheexistingprojectionandcontractionmethod.BytheexplorationonthesearchdirectionofBingshengHestudytoconsidertheselectionofstep.Bythepremiseoffallingintheori

5、ginaldirection,togetaefficientstep-size.Findanewprojectionandcontractionmethodtosolvethevariationalinequalityproblem.Thecontent:Thefirstchapterismainlytheintroduction.Firstofall,carryonthesimpleintroductionoftheemergenceofthevariationalinequalityproblem,development,andotherbackgroundknowledge.Nextp

6、resentsbasicconceptsandconclusionofavariationalinequalityproblemandtheprojectionontheconvexset.Then,introducesseveralcommonmethodsforsolvingvariationalinequalityproblems.Finally,givethearrangementofthecontentattheendofthischapterinthispaper.III内蒙古工业大学硕士学位论文Thesecondchapterfirstlygivessomeinequaliti

7、esaboutvariationalinequalityproblemandthebasicideaoftheprojectionandcontractionmethodsproposedbyBingshengHefromtheNanJingUniversity.Secondly,combiningwiththepaperofmyseniorJinlongWang,analysisthemechanismof

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