Buscar
Mostrando ítems 21-30 de 33
Artículo
The bi-criteria doubly weighted center-median path problem on a tree
(Wiley, 2006-07)
Given a tree network T with n nodes, let PL be the subset of all discrete paths whose length is bounded above by a prespecified value L. We consider the location of a path-shaped facility P ∈ PL, where customers are represented ...
Artículo
New results on minimax regret single facility ordered median location problems on networks
(Springer, 2007)
We consider the single facility ordered median location problem with uncertainty in the parameters (weights) defining the objective function. We study two cases. In the first case the uncertain weights belong to a region ...
Artículo
Multiobjective solution of the uncapacitated plant location problem
(Elsevier, 2003)
In this paper we consider the discrete multiobjective uncapacitated plant location problem. We present an exact and an approximate approach to obtain the set of non-dominated solutions. The two approaches resort to dynamic ...
Artículo
Optimal Positioning of a Mobile Service Unit on a Line
(Springer, 2002-03-01)
In this paper we address the problem of locating a mobile response unit when demand is distributed according to a random variable on a line. Properties are proven which reduce the problem to locating a non-mobile facility, ...
Artículo
Production-inventory games: A new class of totally balanced combinatorial optimization games
(Elsevier, 2009)
In this paper we introduce a new class of cooperative games that arise from production-inventory problems. Several agents have to cover their demand over a finite time horizon and shortages are allowed. Each agent has its ...
Artículo
Multi-criteria minimum cost spanning tree games
(Elsevier, 2004)
The minimum cost spanning tree game (mcst-game) is a well-known model within operations research games that has been widely studied in the literature. In this paper we introduce the multi-criteria version of the mcst-game ...
Artículo
A generalized model of equality measures in network location problems
(Elsevier, 2008-03)
In this paper, the concept of the ordered weighted averaging operator is applied to define a model which unifies and generalizes several inequality measures. For a location x, the value of the new objective function is the ...
Artículo
Set-valued TU-games
(Elsevier, 2004)
The goal of this paper is to explore solution concepts for set-valued TU-games. Several stability conditions can be defined since one can have various interpretations of an improvement within the multicriteria framework. ...
Artículo
A flexible approach to location problems
(Springer, 2000-02)
When dealing with location problems we are usually given a set of existing facilities and we are looking for the location of one or several new facilities. In the classical approaches weights are assigned to existing ...
Artículo
A flexible model and efficient solution strategies for discrete location problems
(Elsevier, 2009-03-06)
Flexible discrete location problems are a generalization of most classical discrete locations problems like p-median or p-center problems. They can be modeled by using so-called ordered median functions. These functions ...