Title
Robust recoverable and two-stage selection problems
Abstract
In this paper the following selection problem is discussed. A set of n items is given and we wish to choose a subset of exactly p items of the minimum total cost. This problem is a special case of 01 knapsack in which all the item weights are equal to1. Its deterministic version has an O(n)-time algorithm, which consists in choosing p items of the smallest costs. In this paper it is assumed that the item costs are uncertain. Two robust models, namely two-stage and recoverable ones, under discrete and interval uncertainty representations, are discussed. Several positive and negative complexity results for both of them are provided.
Year
DOI
Venue
2015
10.1016/j.dam.2017.08.014
Discrete Applied Mathematics
Keywords
Field
DocType
Robust optimization,Computational complexity,Approximation algorithms,Selection problem
Combinatorics,Mathematical optimization,Knapsack problem,Total cost,Mathematics,Special case
Journal
Volume
Issue
ISSN
abs/1505.06893
C
0166-218X
Citations 
PageRank 
References 
5
0.48
19
Authors
2
Name
Order
Citations
PageRank
Adam Kasperski135233.64
Paweł Zieliński222728.62