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1.
具有边际贡献权重的位置值   总被引:1,自引:0,他引:1  
先通过交流局势中交流结构的边邻接关系,确定了边邻接交流局势。再利用边邻接交流局势的Myerson值,以及边的端点的边际联盟贡献比例,定义了具有边际贡献权重的位置值。并利用分支有效性和边均衡贡献性,在一类交流局势下刻画了具有边际贡献权重的位置值。  相似文献   

2.
在具有图结构的合作对策中,Myerson值(Myerson, 1977)是一个著名的分配规则,它可以由分支有效性和公平性或者平衡贡献性所唯一确定。在实际中,图结构可能并不影响大联盟的形成,只是由于参与者在网络中所处的位置不同,对其讨价还价能力会产生影响。换句话说,图结构会对分配格局产生影响,但对大联盟的形成没有影响。这促使人们开始考虑Myerson值的有效推广问题。文献中已经提出了Myerson的几种有效推广形式。2020年,Li和Shan提出了有效商Myerson值并给出了公理化刻画,它是Myerson值一种新的有效推广形式。本文首先引入了准商盈余公平性这一性质,然后结合有效性和Myerson值黏性给出了有效商Myerson值的新公理化刻画。其次,通过应用案例,将该值和其他值做了比较分析。  相似文献   

3.
首先在一般区间值模糊关系上定义了两个论域上的一类广义区间值模糊粗糙集.借助区间值模糊集的截集给出区间值模糊粗糙上、下近似算子的一般表示.讨论了各种特殊的区间值模糊关系与区间值模糊近似算子性质之间的等价刻画.最后利用公理化方法刻画区间值模糊粗糙集.描述区间值模糊上、下近似算子的公理集保证了生成相同近似算子的区间值模糊关系的存在性.  相似文献   

4.
李理  单而芳 《运筹学学报》2018,22(4):99-107
1977年, Myerson建立了以图作为合作结构的可转移效用博弈模型(也称图博弈), 并提出了一个分配规则, 也即\"Myerson 值\", 它推广了著名的Shapley值. 该模型假定每个连通集合(通过边直接或间接内部相连的参与者集合)才能形成可行的合作联盟而取得相应的收益, 而不考虑连通集合的具体结构. 引入图的局部边密度来度量每个连通集合中各成员之间联系的紧密程度, 即以该连通集合的导出子图的边密度来作为他们的收益系数, 并由此定义了具有边密度的Myerson值, 证明了具有边密度的Myerson值可以由\"边密度分支有效性\"和\"公平性\"来唯一确定.  相似文献   

5.
在合作博弈的一般模型中总是假设所有联盟都能形成。不过,在实际中由于受到一些因素的制约,有些联盟是不能形成的。基于此,Myerson提出了具有图通讯结构的合作博弈。Myerson值和Position值是超图博弈上的两个重要分配规则。2005年,Slikker给出了在图博弈上Position值的公理化刻画。但超图博弈上Position值的公理化刻画一直悬而未决。本文通过引入“赋权平衡超边贡献公理”,并结合经典的“分支有效性”,提出了超图博弈上赋权Position值的公理化刻画。作为推论,解决了超图博弈上Position值的公理化刻画问题。  相似文献   

6.
集值映射最优化问题超有效解集的连通性   总被引:7,自引:0,他引:7  
本文在局部凸空间中对集值映射最优化问题引入超有效解的概念.首先研究了超 有效点的一些重要特性.其后证明了当目标函数为锥类凸的集值映射时,其目标空间里 的超有效点集是连通的;若目标函数为锥凸的集值映射时,其超有效解集也是连通的.  相似文献   

7.
研究了具有竞争关系的两公司在由客户组成的网络上先后进行选址的情形,将这种情形建模成一个S tackelberg博弈.由于商店选址之后,客户的行为是自发的,在这种情况下,客户之间往往会有合作,以降低车辆路径费用.提出利用车辆路径合作博弈来模拟客户的行为,从而确定各商店的客户集,并将这种方法与直接利用客户到商店的距离来确定商店的客户集的方法进行了统计意义上的比较.  相似文献   

8.
本文结合我国当前城市既有多层住宅加装电梯费用分摊问题的实际,引入了具有联盟结构的赋权合作博弈模型。在该类博弈中,参与者将依据现实情况进行结盟,形成所谓的“优先联盟”。在此基础上,提出了被称为权分值的分摊规则,并证明了它可以由可加性、联盟内比例对称性、联盟间比例对称性和空化参与者性四个公理唯一确定。作为这个合作博弈模型的应用,本文将我国城市既有多层住宅加装电梯费用分摊问题可归结为具有联盟结构的赋权合作博弈模型,其中业主为参与者,而每一层的参与者们可看作一个优先联盟。当取适当的权值时,该分摊规则涵盖了我国大部分城市出台的既有多层住宅加装电梯业主费用分摊的指导标准,这为这些标准的完善、推广和实施提供了合理的理论依据。  相似文献   

9.
在局部凸拓扑线性空间中给出了含约束集值映射超有效解的连通性定理,当目标函数及约束映射为锥弧连通的集值映射时,其超有效解集是连通的.  相似文献   

10.
该文在Hausdorff局部凸拓扑向量空间考虑约束集值优化问题(SOP)在超有效意义下的Fritz John条件和Kuhn-Tucker条件.首先借助集值映射的下半可微的概念给出这种空间中集值映射导数的定义, 据此讨论了超有效元的Fritz John最优性条件.最后, 给出约束集值优化问题(SOP)取得超有效元的充分条件.  相似文献   

11.
A multi-choice game is a generalization of a cooperative game in which each player has several activity levels. We study the extended Shapley value as proposed by Derks and Peters (1993). Van den Nouweland (1993) provided a characterization that is an extension of Young's (1985) characterization of the Shapley value. Here we provide several other characterizations, one of which is the analogue of Shapley's (1953) original characterization. The three other characterizations are inspired by Myerson's (1980) characterization of the Shapley value using balanced contributions. Received: November 1997/final version: February 1999  相似文献   

12.
In this work, we consider games with coalitional structure. We afford two new parallel axiomatic characterizations for the well-known Owen and Banzhaf–Owen coalitional values. Two properties are common to both characterizations: a property of balanced contributions and a property of neutrality. The results prove that the main difference between these two coalitional values is that the former is efficient, while the latter verifies a property of 2-efficiency.  相似文献   

13.
We characterize the position value for arbitrary communication situations. The two properties involved in the characterization are component efficiency, which is standard, and balanced link contributions, which is in the same spirit as balanced contributions. Since the Myerson value can be characterized by component efficiency and balanced contributions a comparison between the two allocation rules based on characterizing properties can be made. The author thanks Anne van den Nouweland, two anonymous referees, an associate editor and the editor for useful suggestions and comments.  相似文献   

14.
    
A new class of values for cooperative games with level structure is introduced. We apply a multi-step proceeding to the weighted Shapley values. For characterization, two well-known axiomatizations of the weighted Shapley values are extended, the first one by efficiency and weighted balanced contributions and the second one by weighted standardness for two-player games and consistency. We get a new axiomatization of the Shapley levels value too.  相似文献   

15.
A multichoice game is a generalization of a cooperative TU game in which each player has several activity levels. We study the solution for these games proposed by Van Den Nouweland et al. (1995) [Van Den Nouweland, A., Potters, J., Tijs, S., Zarzuelo, J.M., 1995. Cores and related solution concepts for multi-choice games. ZOR-Mathematical Methods of Operations Research 41, 289–311]. We show that this solution applied to the discrete cost sharing model coincides with the Aumann-Shapley method proposed by Moulin (1995) [Moulin, H., 1995. On additive methods to share joint costs. The Japanese Economic Review 46, 303–332]. Also, we show that the Aumann-Shapley value for continuum games can be obtained as the limit of multichoice values for admissible convergence sequences of multichoice games. Finally, we characterize this solution by using the axioms of balanced contributions and efficiency.  相似文献   

16.
17.
In this paper we discuss connectedness of a design which is a Kronecker sum or a partial Kronecker row sum of any two equi-replicate and equi-block size designs.  相似文献   

18.
建立了具有学习效应的排序对策模型,在这类排序对策中,工件的实际加工时间不再是常数,而是关于工件位置的递减幂函数。当所有工件的正常加工时间相等时,松弛可行顺序的条件,相应的排序对策是均衡的,但不一定是凸对策。  相似文献   

19.
    
The graph Banzhaf value was introduced and axiomatically characterized by Alonso-Meijide and Fiestras-Janeiro (2006). In this paper we propose the reduced game and consistency of the graph Banzhaf value for communication situations. By establishing the relationship between the Harsanyi dividends of a coalition in a communication situation and the reduced communication situation, we provide a new axiomatization of the graph Banzhaf value by means of the axioms of consistency and standardness.  相似文献   

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