0377-2217/$ see front matter 2011 Elsevier B.V. A doi:10.1016/j.ejor.2011.01.014 ⇑ Tel.: +90 312 290 27 68; fax: +90 312 266 40 54. E-mail address: [email protected] In this paper, we study allocation strategies and their effects on total routing costs in hub networks. Given a set of nodes with pairwise traffic demands, the p-hub median problem is the problem of choosing p nodes as hub loca...

This paper considers resource allocation to achieve max-min fairness in a selection-based orthogonal frequency division multiplexing network wherein source nodes are assisted by fixed decode-and-forward relays. The joint problem of transmission strategy selection, relay assignment, and power allocation is a combinatorial problem with exponential complexity. To develop effective solutions to the...

We consider the problem of sharing the fixed costs of facilities among a number of users. Although the problem can be formulated and solved as an Integer Programme this provides limited accounting information. Ways of overcoming this are suggested. In addition we consider the issue of fairness among different possible cost allocations and how such ‘fair’ costs may be derived

This paper proposes an optimal allocation problem with ramified transport technologies in a spatial economy. Ramified transportation is used to model network-like branching structures attributed to the economies of scale in group transportation. A social planner aims at finding an optimal allocation plan and an associated optimal allocation path to minimize the overall cost of transporting comm...

This paper makes two contributions. First, we introduce a model for evaluating the performance of data allocation and replication algorithms in distributed databases. The model is comprehensive in the sense that it accounts for I/O cost, for communication cost, and for limits on the minimum number of copies of the object (to ensure availability). The second contribution of this paper is the int...

We study the problem of containing spreading processes in arbitrary directed networks by distributing protection resources throughout the nodes of the network. We consider two types of protection resources are available: (i) Preventive resources able to defend nodes against the spreading (such as vaccines in a viral infection process), and (ii) corrective resources able to neutralize the spread...

Economic evaluation in health care often involves cost-utility analysis (CUA), a method based on the cost-effectiveness criterion of dollars per Quality-Adjusted Life Year (QALY), where the quality adjustement factors for years lived in ill health are established through answers to standard-gamble questions. This paper shows that, contrary to a widely held notion, allocation of a fixed health c...

Cost-effectiveness analysis can be used to help set priorities for funding health care programs. For each intervention, the costs and clinical outcomes associated with that strategy must be compared with an alternate strategy for treating the same patients. If an intervention results in improved outcomes but also costs more, the incremental cost per incremental unit of clinical outcome should b...

In this paper, a cost saving based allocation strategy for infrastructure resource allocation is proposed to support the business service in cloud computing environment. In a typical enterprise cloud system, it needs the capability to automatically allocate resources by matching resource requirements upon resource availability, while taking both load-balance and cost saving into account. On the...

In cost-sharing games with delays, a set of agents jointly uses subset resources. Each resource has fixed cost that to be shared by the players, and each agent nonshareable player-specific delay for resource. A separable protocol determines shares are budget-balanced, separable, guarantee existence pure Nash equilibria (PNE). We provide black-box reductions reducing design such an approximation...