共查询到20条相似文献,搜索用时 31 毫秒
1.
ZHAO Hui GAO Ziyou 《系统科学与复杂性》2005,18(4):543-555
This paper presents a unified bination algorithms (such as FrankWolfe problems. Global convergence results are framework of the nonmonotone convex comAlgorithm) for solving the traffic assignment established under mild conditions. The line search procedure used in our algorithm includes the nonmonotone Armijo rule, the non- monotone Goldstein rule and the nonmonotone Wolfe rule as special cases. So, the new algorithm can be viewed as a generalization of the regular convex combination algorithm. 相似文献
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刘利平 《系统科学与复杂性》1991,(2)
In this paper,the generalized Hessian matrix and the generalized second-order directional(?)erivative for C~(1,1)vector functions are defined.The extension of the vector second-order Taylorexpansion is derived.The second-order necessary and sufficient conditions for the local nondominatedsolutions associated with the given convex cone and polyhedral convex cone of the generalizedmultiobjective mathematical programming problem with C~(1,1)constrained functions are discussed. 相似文献
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XU Dachuan 《系统科学与复杂性》1996,(3)
ANEWSUFFICIENTCONDITIONFORTHECONVERGENCEOFTHEDFPALGORITHMWITHWOLFELINESEARCH¥XUDachuan(DepartmentofMathematics,QufuNormalUniv... 相似文献
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FU Wantao 《系统科学与复杂性》1999,(1)
1.IntroductionInreference[11,theconceptofstrictefficiency)anewkindofproperefficiency,wasintroductedinvectoroptimizationinarealnormedspace.ThisefficiencyisshowntohavemailydesirablepropertiesandbeanextensionofthesuperefficiencyinthesenseofBorwein[2].Inthispaper,wecontinuethestudyofstrictefficiency.WeeXtendthestrictefficiencyinnormedspacestothecaseinlocallyconvexvectorspaces.Themainpurposeofthepreselltpaperistogiveascalarchaxacterizationofstrictefficiencybyusingakindoffunctional(so--called"base… 相似文献
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GONG Xun hua 《系统科学与复杂性》2000,(1)
1.IntroductionLetXbeavectorspace,Ybeatopologicalvectorspace,Zbealocallyconvexspace,andletthetopologicaldualspacesofYandZbedenotedbyY*andZ*,respectively.LetCbeapointedconvexconeinYandKbeaclosedconvexpointedconeinZ.ThedualconesofCandKaredefinedasrespec... 相似文献
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BU Shangquan 《系统科学与复杂性》1999,(1)
Inthelasttenyears,severalremarkableresultswereestablishedinthegeometricaltheoryofinfinitelydimensionalcomplexBanachspaces.In[1],A.V.BukhvalovandA.A.DanilevichhaveintroducedtheanalyticRadon--NikodympropertyincomplexBanachspaces,whichcanbeseenastheanalyticanalogueofthewell-knownRadon-NikodympropertyconcerningtherealstructuresofBanachspaces.TheanalyticRadon-Nikodympropertyhasbeenextensivelystudied(see[2--6]),onecancharacterizetheanalyticRadon-Nikodympropertyintermsoftheconvergenceofplurisub… 相似文献
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层次分析法中区间判断的凸锥模型 总被引:9,自引:1,他引:8
用全新凸锥模型讨论层次分析法中常规点判断以及区间判断的权重向量的特性与算法,并对它们给出统一的几何解释.本文提出的交锥与包络锥方法是估算区间判断下权重向量可行域的一种合理而又实用的算法 相似文献
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WUZhiyou ZHANGLiansheng BAIFusheng YANGXinmin 《系统科学与复杂性》2004,17(3):421-436
In this paper, firstly, we propose several convexification and concavification transformations to convert a strictly monotone function into a convex or concave function, then we propose several convexification and concavification transformations to convert a non-convex and non-concave objective function into a convex or concave function in the programming problems with convex or concave constraint functions, and propose several convexification and concavification transformations to convert a non-monotone objective function into a convex or concave function in some programming problems with strictly monotone constraint functions. Finally, we prove that the original programming problem can be converted into an equivalent concave minimization problem, or reverse convex programming problem or canonical D.C. programming problem. Then the global optimal solution of the original problem can be obtained by solving the converted concave minimization problem, or reverse convex programming problem or canonical D.C 相似文献
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首先给出了模糊合作对策在凸几何上的定义。通过相应的公理体系,论述了模糊合作对策在凸几何上的Shapley函数。为了更好了解此类模糊合作对策,研究了两类特殊模糊合作对策在凸几何上的Shapley函数,并证明了其存在性和唯一性,拓展了模糊合作对策的研究范围。最后通过算例分析来具体说明局中人在此类模糊合作对策上的收益值。 相似文献
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给出了具有实际意义的判断矩阵 Hadamard凸组合的定义 ,并证明了判断矩阵 Hadamard凸组合的一个性质 . 相似文献
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Intersection computation of convex sets is a typical problem in distributed optimization. In this paper, the algorithm implementation is investigated for distributed convex intersection computation problems. In a multi-agent network, each agent is associated with a convex set. The objective is for all the agents to achieve an agreement within the intersection of the associated convex sets. A distributed"projected consensus algorithm" is employed, and the computation of the projection term is converted to a constrained optimization problem. The solution of the optimization problem is determined by Karush-Kuhn-Tucker(KKT) conditions. Some implementable algorithms based on the simplex method are introduced to solve the optimization problem. Two numerical examples are given to illustrate the effectiveness of the algorithms. 相似文献
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TheAlternativePropertyandVectorOptimizationProbleminOrderedLocalyConvexTopologicalVectorSpacesWANGQiDepartmentofMathematicsan... 相似文献
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决策表的分布约简和严凸函数下约简的等价性 总被引:9,自引:0,他引:9
用严凸函数定义决策表的属性约简,证明用严凸函数定义的属性约简同分布约简是等价的,给出严凸函数定义的相对约简的一个判定定理。 相似文献
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Journal of Systems Science and Complexity - This paper generalizes the factorization theorem of Gouveia, Parrilo and Thomas to a broader class of convex sets. Given a general convex set, the... 相似文献
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综合判断矩阵的几个性质 总被引:4,自引:1,他引:4
指出了一些文章关于判断矩阵凸组合和Hadamard凸组合一致性性质叙述中的几个小问题,在 已有证明方法的基础上给出了综合判断矩阵的几个性质,对群组决策具有较大的实用性. 相似文献
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A model is developed for convex-set valued data,which are the Minkowski sum of aconvex parameter set and a convex noise set.This model is generalized to include location and scaleparameters.A further generalization results in a model for convex sets which is analogous to aone-way analysis of variance models.In each case,estimators of the parameters are given which,under certain conditions,are shown to be consistent.Data generated from the model and theestimators are studied.An outlier detection method is examined. 相似文献
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求解可分离连续凸二次背包问题的直接算法 总被引:1,自引:0,他引:1
经典算法一般采用迭代过程求解连续凸二次背包问题,研究了求解可分离连续凸二次背包问题的直接算法。分析了可分离连续凸二次背包问题的结构特性,通过两个命题和两个定理研究了可分离连续凸二次背包问题的解的特性,提出了一种快速的求解该问题的直接算法。该算法能快速有效地求解可分离连续凸二次背包问题的最优解,算法的时间复杂度和空间复杂度都是O(n),都比经典算法节约很多。 相似文献