A pseudo-polynomial time algorithm for solving the resource dependent assignment problem

In this paper the resource dependent assignment problem (RDAP) is considered. In the RDAP the cost of assigning agent j to task i is a multiplication of task i’s cost parameter by a cost function of agent j and the cost function of agent j is a linear function of the amount of resource allocated to...

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Bibliographic Details
Published in:Discrete Applied Mathematics Vol. 182; pp. 115 - 121
Main Authors: Shabtay, Dvir, Steiner, George, Yedidsion, Liron
Format: Journal Article
Language:English
Published: Elsevier B.V 19.02.2015
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ISSN:0166-218X, 1872-6771
Online Access:Get full text
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Summary:In this paper the resource dependent assignment problem (RDAP) is considered. In the RDAP the cost of assigning agent j to task i is a multiplication of task i’s cost parameter by a cost function of agent j and the cost function of agent j is a linear function of the amount of resource allocated to the agent. A solution for the RDAP problem is defined by the assignment of agents to tasks and by a resource allocation to each agent. The quality of a solution is measured by two criteria. The first criterion is the total assignment cost and the second one is the total weighted resource consumption. Yedidsion et al. showed that the bicriteria variations of the problem are all NP-hard for any given set of task costs. However, whether these problems are strongly or ordinarily NP-hard remained an open question. In this paper we close this gap by providing pseudo-polynomial time algorithms for solving these problems.
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ISSN:0166-218X
1872-6771
DOI:10.1016/j.dam.2013.08.037