简介:Theanalytichierarchyprocess(AHP)isusedwidelyforanalyzingdecisionsmadeinvariousreal-worldapplications.Itsbasicideaistoconstructahierarchyofconceptsencounteredinagivendecisionproblemandtochoosethebestalternativeaccordingtopairwisecomparisonmatricesgivenbythedecisionmaker.Undertheassumptionoffullyrationaleconomics,areasonabledecisionshouldbeconsistent.Itbecomesanimportantissueonhowtoanalyzeandensuretheconsistencyofcomparisonmatricestogetherwiththejudgmentsofthedecisionmaker.Themainobjectivesofthepresentpaperarethreefold.First,wereviewthebasicideaandmethodsusedtodefinetheconsistencyandthetransitivityofmultiplicativereciprocalmatrices,additivereciprocalmatricesandcomparisonmatriceswithfuzzyintervalandtriangularfuzzynumbers.TheexistingcontroversybehindtheapplicationsoffuzzysettheorytotheAHPintheliteratureispresented.Second,theconsistencyofthecollectivecomparisonmatricesingroupdecisionmakingbasedonAHPandfuzzyAHPisfurtheranalyzed.WepointoutthattheweakconsistencyofpreferencerelationswithfuzzynumbersinfuzzyAHPandgroupdecisionmakingshouldbeinvestigatedcomprehensively.Third,undertheconsiderationofthevaguenessintheprocessofevaluatingthejudgements,anewconceptoffuzzyconsistencyofcomparisonmatricesintheAHPisgiven.
简介:摘要:研究中性粒细胞与淋巴细胞比率(NLR)、血小板与淋巴细胞比率(PLR)和单核细胞与淋巴细胞比率(MLR)在2型糖尿病肾病(T2DN)诊断中的作用。方法:招募2022年9月至2023年2月在济南市中西医结合医院就诊的60名T2DN患者为研究对象,同时招募本院70名单纯2型糖尿病(T2DM)患者为对照组。比较两组患者的外周血NLR、MLR和PLR值。评价这三个参数在T2DN早期诊断中的作用。2型糖尿病肾病患者的NLR、MLR和PLR值明显高于单纯的2型糖尿病患者,表明这三个参数对2型糖尿病肾病有诊断作用。2型糖尿病肾病患者外周血中的NLR、MLR和PLR值明显高于单纯的2型糖尿病患者,这三个参数对T2DN的早期诊断有一定作用,其中MLR的诊断效能最优。
简介:SeveralexamplesthatservetovalidatetheAHP/ANPwithmatriceshierarchiesandnetworksaregiveninthispaper.Theyarethenfollowedbyadiscussionoftherealnumbersandhowtheyaregeneratedwithouttheneedforanabsolutezero,andhowtheydefineanabsolutescaleofmeasurementthatalsodoesnotneedanabsolutezero.IntheAHP/ANPthemeasurementofanalternativedependsonwhatotheralternativesitiscomparedwith.Theresultisthatrankcanchangeifalternativesareaddedordeleted,somethingthatdoesnotoccurinone-at-a-timeratingofthealternativesbycomparingthemwithanideal.Anexampleisprovidedtoshowthatthisisnaturalandneednotinvolvenewcriteriaorchangeinjudgments.AbriefdiscussionofUtilityTheory,theothermulti-criteriatheory,whichusesintervalscalestomeasureintangiblesandsomeofitsproblemsandparadoxes,isgiven.ThereferencesattheendincludemostofthepapersthatareadversetotheAHl'withbriefcommentsaboutseveralofthemgiveninthepaper.
简介:摘要:目的 评估MLR、PLR、NLR对急性一氧化碳中毒(ACOP)心肌损伤的预测价值。方法 选取2015年至2022年延边大学附属医院收治的急性一氧化碳中毒患者,最后入组124例为研究对象。分为无心肌损伤组87例和有心肌损伤组37例。观察患者临床指标、生化指标,并计算MLR、PLR、NLR;采用ROC曲线分析MLR、PLR、NLR对ACOP心肌损伤的预测价值,采用二元logistic回归分析探讨ACOP心肌损伤的影响因素。结果 急性一氧化碳中毒有心肌损伤组的MLR、PLR、NLR均高于无心肌损伤组,差异有统计学意义(P<0.05);ROC曲线分析示:当MLR、PLR、NLR的最佳临界值分别为0.4581、113.7952、7.1122时, ROC曲线下面积分别为MLR:0.823,PLR:0.624,NLR:0.825。联合检测为0.839。MLR、PLR、NLR并联检测时预测ACOP心肌损伤敏感度最高,为97.3%;MLR、PLR、NLR串联检测时预测ACOP心肌损伤特异性最高,为78.2%。结论 MLR、PLR、NLR对ACOP心肌损伤具有预测价值。
简介:OnthebasisofanalyzingtheshortageofscalemeasureofthecurrentAHP,andfollowingbaseprincipleoftwocomparison:principleofreward-punishmentandprincipleofconversion,translationfunctionandconciliationcoefficienthavebeenstructured.Thisarticleadvancesanewmeasurewhichstructuringtranslationfunctionandconciliationcoefficient.TheresultofapplicationofimprovedAHPonthesynthesisevaluationofagriculturalmechanizationissatisfactory.
简介:摘 要:通过运用层次分析法(AHP)建立了企业安全生产预警评价指标,再结合模糊综合评价法对企业的安全生产状况进行评价预测,构建了风险预测模型。在模型运用过程中进一步将评价结果量化,有助于企业直观的了解当前安全生产状态,完善安全管理措施。