学科分类
/ 1
5 个结果
  • 简介:由使用多重商单个珍视分解QQQQQ-SVD,我们在2x2个划分矩阵的g反、反射的内部逆学习块独立,并且证明一conjecture在[王一菊,暹罗J。矩阵肛门。Appl,19(2),407-415(1998)]。

  • 标签: 分块矩阵 块独立性 G-逆 自反逆 广义逆
  • 简介:针刺配合隔蒜灸治疗顽固性荨麻疹46例,并与单纯针刺治疗30例对照观察,结果观察组总有效率91.3%;对照组,总有效率73.3%。说明针刺配合隔蒜灸较单纯针刺治疗顽固性荨麻疹效果更好.

  • 标签: 隔蒜灸 针剌疗法 顽固性荨麻疹 治疗 临床资料 中医
  • 简介:ConsiderthepartitionedlinearregressionmodelA=(y,X1β1+X2β2,σ^2V)anditsfourreducedlinearmodels,whereyisann×1observablerandomvectorwithE(y)=XβanddispersionmatrixVar(y)=σ^2V,whereσ^2isanunknownpositivescalar,Visann×nknownsymmetricnonnegativedefinitematrix,X=(X1:X2)isann×(p+q)knowndesignmatrixwithrank(X)=r≤(p+q),andβ=(β'1:β'2)'withβ1andβ2beingp×1andq×1vectorsofunknownparameters,respectively.InthisarticletheformulaeforthedifferencesbetweenthebestlinearunbiasedestimatorsofM2X1β1underthemodelAanditsbestlinearunbiasedestimatorsunderthereducedlinearmodelsofAaregiven,whereM2=I-X2X2^+.Furthermore,thenecessaryandsufficientconditionsfortheequalitiesbetweenthebestlinearunbiasedestimatorsofM2X1β1underthemodelAandthoseunderitsreducedlinearmodelsareestablished.Lastly,wealsostudytheconnectionsbetweenthemodelAanditslineartransformationmodel.

  • 标签: 随机向量 单一分割线性模型 无偏估计 线性转化模型 概率统计
  • 简介:Graphicprocessingunits(GPUs)havebeenwidelyrecognizedascost-efficientco-processorswithacceptablesize,weight,andpowerconsumption.However,adoptingGPUsinreal-timesystemsisstillchallenging,duetothelackinframeworkforreal-timeanalysis.Inordertoguaranteereal-timerequirementswhilemaintainingsystemutilizationinmodernheterogeneoussystems,suchasmulticoremulti-GPUsystems,anovelsuspension-basedk-exclusionreal-timelockingprotocolandtheassociatedsuspension-awareschedulabilityanalysisareproposed.TheproposedprotocolprovidesasynchronizationframeworkthatenablesmultipleGPUstobeefficientlyintegratedinmulticorereal-timesystems.Comparativeevaluationsshowthattheproposedmethodsimproveupontheexistingworkintermsofschedulability.

  • 标签: 实时系统 U系统 多核 协议 锁定 分区