Data,Model and Decision知到章節(jié)答案智慧樹2023年華南理工大學(xué)

Data,ModelandDecision知到章節(jié)測(cè)試答案智慧樹2023年最新華南理工大學(xué)第一章測(cè)試

Thepurposeofbreak-evenanalysisistodeterminethenumberofunitsofaproducttosellorproducethatwillequatetotalrevenuewithtotalcost.Atthebreak-evenpoint,theprofitis()zero.

參考答案:

equalto

Ingeneral,anincreaseinvariablecostswill（）thebreak-evenpoint,allotherthingsheldconstant.

參考答案:

increase

It’simportanttomakefulluseoftechniquesinmanagementscienceprocess,whichtechniquesarecommonlyusedforthepurposeofdecision-making（）?

參考答案:

Transportationandassignment

;Linearprogrammingmodels

;Projectmanagement(likeCPM/PERT)

;Decisionanalysis

Manufacturingcompaniesdeveloplinearprogrammingmodelstohelpdecidehowmanyunitsofdifferentproductstheyshouldproducetomaximizetheirprofit(orminimizetheircost),givenscarceresourcessuchascapital,labor,andfacilities.(）

參考答案:

對(duì)

第二章測(cè)試

Ifthegraphicalmethodisusedtosolvethelinearprogrammingproblem,thenumberofdecisionvariablesshouldbe().

參考答案:

2

Inthelinearprogrammingmodel,()restrictthedecisionvariablestozeroorpositivevalues.

參考答案:

Nonnegativityconstraints

Iftheoptimalsolutionofthelinearprogrammingproblemisreachedattwoverticesoffeasibledomainatthesametime,thentheoptimalsolutionhas().

參考答案:

Alinesegmentconnectingtwovertices

ThefollowingfeaturesofstandardformofLinearprogrammingarecorrect（）.

參考答案:

Thedecisionvariablesarenonnegative

Theoptimalsolutionofthelinearprogrammingproblemmustbethefeasiblesolution.（）

參考答案:

對(duì)

第三章測(cè)試

Giventhatalinearprogrammingproblemisasfollowing,theoptimalsolutionofdualproblemis().

參考答案:

Y=(4/5,3/5,1,0)

Thefollowingstatementsof100%ruleofobjectivefunctioncoefficientiscorrect（）.

參考答案:

Thesumofallchangedcoefficientspercentagesofallowableincreaseandallowabledecreasedoesnotreach100%,theoptimalsolutionwon’tchange.

Thedualityofadualproblemisnotnecessarilytheprimalproblem.(）

參考答案:

錯(cuò)

Shadowpriceisactuallyamarginalprice.(）

參考答案:

對(duì)

Iftheprimalproblemoflinearprogrammingaddsaconstraint,itisequivalenttoaddingavariabletothedualproblem.（）

參考答案:

對(duì)

第四章測(cè)試

PleasesolvethefollowingintegerproblemandgetthemaximumZ=().

參考答案:

Z=4

Adrillingteamneedstodetermine5explorationwellsfrom10alternativewellstominimizethetotaldrillingcost.If10wellsarerepresentedbys1,s2,…s10,thecostsbeingc1,c2,…c10,oneofconstraintsis:iftheplanchoosess3ors4,thens5cannotbeselectedandviceversa.Weseta0-1variable,xj(j=1,2,…10),thenthisconstraintcanbeexpressed()

參考答案:

x3+x5≤1,x4+x5≤1

Branch-and-cuttechniqueisonlysuitableforsolvingpureintegerprogrammingproblems.(）

參考答案:

錯(cuò)

Simplyroundingoffnon-integersimplexsolutionvaluesformodelsrequiringintegersolutionsisnotalwaysappropriate.Roundingcanoftenleadtosuboptimalresults.(）

參考答案:

對(duì)

Assignmentproblemdoesn’tbelongto0-1integerprogrammingproblem.(）

參考答案:

錯(cuò)

第五章測(cè)試

Inthetransportationmodel,thenumberofdemandplacesandsupplyplacesisnandmrespectively.Thenumberofconstraintsis().

參考答案:

m+n

Theincorrectstatementoftransportationprobleminthefollowingstatementsis().

參考答案:

Thenumberofconstraintsequalsthenumberofbasevariables.

Whenweadjustthetransportationschemebyclosed-loopmethod,theruleisthatthemaximumvalueoftransportationincreasinginthecellequalstheminimumvalueofthenumeralcelltobereduced,whichisto().

參考答案:

makesurethatthetrafficvolumedoesnotappearnegative.

AcompanytransportsamaterialfromthreesupplyplacesA1,A2,andA3toB1,B2,andB3.Allinformationoftransportationvolumeislistedasthefollowingtable.Themiddlecellsarethepriceofunittransportationvolume.Fortheoptimalschemeofminimumcost,weutilizethetabularmethodforsolvingitandwecalculatethetestnumberofA2B3thatistheminimumpriceofunitvolumeinnon-basicvariables().

參考答案:

-1

Forthetransportationproblemofminimumvalue,theoptimaltransportationschemecanbegainedwhenthetestnumbersarelessthanorequaltozero.(）

參考答案:

錯(cuò)

第六章測(cè)試

Intermsofgraphtheory,thefollowingstatementisincorrect().

參考答案:

Nodesinatreemaynotbeconnectedtoeachother.

Thereare()oddverticesinthegraph.

參考答案:

2

InordertogettheminimalspanningtreeofthisgraphbyKruskalAlgorithm,thenumberofremainingedgesis(D),andinascendingorderofweight,weshouldremaintheedge()withtheweightof5inordertoavoidcircle.

參考答案:

5;(v2,v3)

Dijkstraalgorithmisonlyusedtocalculatetheshortestroutefromthefirstvertexv1toothervertices.(）

參考答案:

錯(cuò)

TheBellmanalgorithmcanbeusedtofindouttheshortestroutefromv1toanyvertex,eventheweightbeingnegative.（）

參考答案:

對(duì)

第七章測(cè)試

IntheGanttcharts,thehorizontalaxisrepresentstimeandtheverticalaxisrepresentseachactivity.（）

參考答案:

對(duì)

Thecriticalactivityincriticalpathis().

參考答案:

thelongestdurationactivity

Pleaseindicatethecriticalpathinthefollowingnetwork(everynumberbelowtheactivityrepresentsitsduration).()

參考答案:

A→C→F→G

AvirtualactivityisusedinanAOAnetworktoshowanactualpassageoftime,notjusttheprecedencerelationship.(）

參考答案:

錯(cuò)

Whenwecarryonthecalculationstepsforthe