Title
A combinatorial algorithm for the 1-median problem in Rd with the Chebyshev norm
Abstract
We consider the 1-median problem in R^d with the Chebyshev norm: given n points with non-negative weights, find a point that minimizes the sum of the weighted distances to the given points. We propose a combinatorial algorithm for this problem by reformulating it as a fractional b-matching problem. This graph-theoretical problem can be solved by a min-cost-flow algorithm. Moreover, we show that there is a 1-median, which is half-integral, provided that the points have integral coordinates.
Year
DOI
Venue
2010
10.1016/j.orl.2010.07.002
Oper. Res. Lett.
Keywords
Field
DocType
chebyshev norm,fractional b-matching problem,n point,1-median problem,graph-theoretical problem,weighted distance,combinatorial algorithm,fractional b -matching,non-negative weight,facility location,min-cost-flow algorithm
Chebyshev polynomials,Combinatorics,Mathematical optimization,Combinatorial algorithms,Matching (graph theory),Combinatorial optimization,Facility location problem,Chebyshev filter,Rational function,1-center problem,Mathematics
Journal
Volume
Issue
ISSN
38
5
Operations Research Letters
Citations 
PageRank 
References 
1
0.38
5
Authors
2
Name
Order
Citations
PageRank
Johannes Hatzl1597.96
Andreas Karrenbauer213320.21