Name
Abstract | ||
|---|---|---|
In this article, we elaborate on a budget constrained extension of the r-interdiction median problem with fortification (RIMF). The objective in the RIMF is to find the optimal allocation of protection resources to a given service system consisting of p facilities so that the disruptive effects of r possible attacks to the system are minimized. The defender of the system needs to fortify q facilities of the present system to offset the worst-case loss of r non-fortified facilities due to an interdiction in which the attacker's objective is to cause the maximum possible disruption in the service level of the system. The defender-attacker relationship fits a bilevel integer programming (BIP) formulation where the defender and attacker take on the respective roles of the leader and the follower. We adopt this BIP formulation and augment it with a budget constraint instead of a predetermined number of facilities to be fortified. In addition, we also assume that each facility has a flexible service capacity, which can be expanded at a unit cost to accommodate the demand of customers who were serviced by some other interdicted facility before the attack. First, we provide a discrete optimization model for this new facility protection planning scenario with a novel set of closest assignment constraints. Then, to tackle this BIP problem we use an implicit enumeration algorithm performed on a binary tree. For each node representing a different fortification scheme, the attacker's problem is solved to optimality using Cplex 11. We report computational results obtained on a test bed of 96 randomly generated instances. The article concludes with suggestions for future research. |
Year | DOI | Venue |
|---|---|---|
2010 | 10.1007/s10100-009-0110-6 | CENTRAL EUROPEAN JOURNAL OF OPERATIONS RESEARCH |
Keywords | DocType | Volume |
Mixed-integer bilevel programming,Interdiction median problem with fortification,Facility protection,Binary enumeration tree | Journal | 18 |
Issue | ISSN | Citations |
3 | 1435-246X | 26 |
PageRank | References | Authors |
1.11 | 9 | 3 |
Name | Order | Citations | PageRank |
|---|---|---|---|
| Deniz Aksen | 1 | 189 | 11.38 |
| Nuray Piyade | 2 | 33 | 1.58 |
| Necati Aras | 3 | 462 | 30.62 |