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Autor Tejada Cazorla, Juan Antonio |
Documentos disponibles escritos por este autor (39)
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The SPERT problem was defined, in a game theory framework, as the fair allocation of the slack or float among the activities in a PERT network previous to the execution of the project. Previous approaches tackle with this problem imposing that t[...]![]()
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The focus of this paper is the assessment of groups of agents or units in a network organization. Given a social network, the relations between agents are modeled by means of a graph, and its functionality will be codified by means of a cooperat[...]![]()
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Gómez, Daniel ; González-Arangüena, Enrique ; Conrado, Manuel ; Owen, Guillermo ; Pozo Juan, Mónica del ; Tejada Cazorla, Juan Antonio | Elsevier | 2003-08A new family of centrality measures, based on game theoretical concepts, is proposed for social networks. To reflect the interests that motivate the interactions among individuals in a network, a cooperative game in characteristic function form [...]![]()
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En este artículo se estudia en una primera aproximación el juego del Black-Jack o veintiuno según las reglas vigentes en la actualidad en España. Se trata este juego como un proceso de decisión secuencial acotado en el que se intenta maximizar l[...]![]()
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This paper compares two ways of providing decision support for the allocation of a fixed financial budget among a set of competing highway investment proposals. The first, which is described only in outline, uses a broadly conventional, hierarch[...]![]()
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This paper deals with the problem of allocating a fixed budget between a set of competing investment proposals. Based on previous practical experience with problems of this type, an analysis using the fuzzy outranking approach promised to be pot[...]![]()
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The purpose of the paper is to formulate some properties of Orlovsky’s concept of decision making. This concept is related to the notions of max-min and max *-transitivity. The concept of fuzzy acyclicity is proposed to characterize the existenc[...]![]()
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This paper deals with fuzzy preferences. Many different alternative definitions of strict and weak fuzzy preferences can be found in the literature. But most of them do not take into account that fuzzy preferences should allow a complete prefere[...]![]()
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In this paper we comment upon the integrated model for valued preferences introduced by Fodor, Ovchinnikov and Roubens. In particular, while on one hand we revise basic assumptions and point out their intuitive meaning, on the other hand we prop[...]![]()
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Montero, Javier ; Tejada Cazorla, Juan Antonio ; Yáñez, Javier | Emerald Group Publishing Limited | 1994A general concept of a structure function is proposed by considering a general order topology, where possible degrees of performance for the system and its components are going to be represented. Finite multistate structure functions and continu[...]![]()
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Brumfiel, G. ; Hilde, H. ; Lozano, M. T. ; Montesinos Amilibia, José María ; Ramirez, E. ; Short, H. ; Tejada Cazorla, Juan Antonio ; Toro, M. | World Scientific PublCo | 2017The main result of this paper is the construction of two Hyperbolic manifolds, M-1 and M-2, with several remarkable properties: (1) Every closed orientable 3-manifold is homeomorphic to the quotient space of the action of a group of order 16 on [...]![]()
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Castro, Javier ; Gómez, Daniel ; Molina, Elienda ; Tejada Cazorla, Juan Antonio | Pergamon-Elsevier | 2017In this paper, we propose a refinement of the polynomial method based on sampling theory proposed by Castro et al. (2009) to estimate the Shapley value for cooperative games. In addition to analyzing the variance of the previously proposed estim[...]![]()
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We study the relation between the core of a given controlled committee LP-game and the set of payoff vectors generated by shadow prices and core allocations of those simple games describing the control over the different resources. The central p[...]![]()
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The aim of this paper is to analyse linear production with committee control situations arising when controllers face the possibility of graduating their options. In order to model these situations, we consider several kinds of fuzzy controls, w[...]![]()
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This paper deals with the problem of designing and choosing auctioning mechanisms for multiple commonly ranked objects as, for instance, keyword auctions in search engines on Internet. We shall adopt the point of view of the auctioneer who has t[...]![]()
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Se aborda el problema de la extensión de una relación de preferencia difusa, definida sobre un conjunto nitido de alternativas, al conjunto de distribuciones de probabilidad sobre éstas.![]()
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This paper deals with continuum systems, where a continuous degree of performance levels between perfect functioning and complete failure is allowed. Here we shall assume that the system can be modeled as a structure function given by a mapping [...]![]()
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In a previous paper [2], the authors proved that a property of ‘acyclity’ in fuzzy preference relations was anecessary and sufficientcondition for the existence of unfuzzy nondominated alternatives when such aset of alternatives is finite. In th[...]![]()
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Brumfield, G. ; Hilden, Hugh Michael ; Lozano Imízcoz, María Teresa ; Montesinos Amilibia, José María ; Ramírez Losada, E. ; Short, H. ; Tejada Cazorla, Juan Antonio ; Toro, M. | Sociedad Matemática Mexicana | 2008-10It has been shown [H. M. Hilden et al., Invent. Math. 87 (1987), no. 3, 441–456;] that the orbifold group U of the Borromean rings with singular angle 90 degrees is universal, i.e. for every closed orientable 3-manifold M3 there is a finite inde[...]![]()
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This paper deals with simultaneous auctions of two commonly ranked objects following the model studied in Menezes and Monteiro (J. Real Estate Finance Econ., 17(3):219-232, 1998). For these problems we introduce a parametric family of auction me[...]![]()
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Castro, Javier ; Gómez, Daniel ; Tejada Cazorla, Juan Antonio | Pergamon-Elsevier Science Ltd | 2009-05In this paper we develop a polynomial method based on sampling theory that can be used to estimate the Shapley value (or any semivalue) for cooperative games. Besides analyzing the complexity problem, we examine some desirable statistical proper[...]![]()
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Castro, Javier ; Gómez, Daniel ; Tejada Cazorla, Juan Antonio | Pergamon-Elsevier Science Ltd | 2008In this paper we define the weighted serial cost sharing rule for the cost allocation problem.We apply this new rule to the problem of sharing delay costs in a PERT network. This rule belongs to the Core and is the Weighted Shapley Value for a p[...]![]()
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An important topic in PERT networks is how to allocate the total expedition (or delay) for situations in which the project is not executed as planned. In order to do that we define a TU project game that satisfies some desirable properties from [...]![]()
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We propose and analyze a new type of values for cooperative TU-games, which we call pyramidal values. Assuming that the grand coalition is sequentially formed, and all orderings are equally likely, we define a pyramidal value to be any expected [...]![]()
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A standard assumption on the Iterated Prisoner’s Dilemma is that the probability of further interaction is constant. Then, cooperation via reciprocity can be guaranteed if and only if this probability is sufficiently high. In this paper, we anal[...]![]()
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In this paper, we define a new rule for the resolution of the slack allocation problem in a PERT network. This problem exists of allocating existing extra time in some paths among the activities belonging to those paths. The allocation rule that[...]![]()
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En este trabajo se presentan algunos resultados que resaltan la importancia de Ia transitividad máx-mín dentro de las transitividades máx-* , cuando se pretenden definir relaciones de preferencia difusa.![]()
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In this paper we deal with decision-making problems over an unfuzzy set of alternatives. On one hand, we propose the problem of finding a max-min transitive relation as near as possible to a given initial preference relation, under the least-squ[...]![]()
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González-Arangüena, Enrique ; Manuel García, Conrado Miguel ; Owen, Guillermo ; Pozo, M. del ; Tejada Cazorla, Juan Antonio | Springer | 2004-07A communication situation consists of a coalitional game and a graph, the nodes of the graph corresponding to the players of the game. To calculate the Myerson value for such situations, we obtain results which extend those well known for trees [...]![]()
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This paper deals with monotonic systems where the performance levels of the system and its components range from perfect functioning to complete failure, allowing any intermediate state in the unit interval. In particular, general bounds are fou[...]![]()
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Sánchez-Manzano, E.G. ; Gómez Villegas, Miguel A. ; Tejada Cazorla, Juan Antonio | Real Academia de Ciencias Exactas, Físicas y Naturales | 1999This paper introduces the Bayesian Dynamic Linear Model to predict the flows (mainly in flood conditions) at a point of a river in successive instants of time, knowing the previous flows at several stations located up the river. The model is fit[...]![]()
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In this paper we analyze the lexicographical solution for fuzzy TU games, we study its properties and obtain a characterization. The lexicographical solution was introduced by Sakawa and Nishizaki (Fuzzy Sets and Systems 61 (1994) 265-275) as a [...]![]()
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This short note proves that the least square nucleolus (Ruiz et al. (1996)) and the lexicographical solution (Sakawa and Nishizaki (1994)) select the same imputation in each game with nonempty imputation set. As a consequence the least square nu[...]![]()
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Brumfield, G. ; Hilden, Hugh Michael ; Lozano Imízcoz, María Teresa ; Montesinos Amilibia, José María ; Ramírez Losada, E. ; Short, H. ; Tejada Cazorla, Juan Antonio ; Toro, M. | Sociedad Matemática Mexicana | 2008-10A finite covolume, discrete group of hyperbolic isometries U, acting on H3, is said to be universal if for every closed orientable 3-manifold M3 there is a finite index subgroup G of U so that M3=H3/G. It has been shown [H. M. Hilden et al., Inv[...]![]()
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