Title
Local Search Yields Approximation Schemes for k-Means and k-Median in Euclidean and Minor-Free Metrics
Abstract
We give the first polynomial-time approximation schemes (PTASs) for the following problems: (1) uniform facility location in edge-weighted planar graphs, (2) k-median and k-means in edge-weighted planar graphs, (3) k-means in Euclidean space of bounded dimension. Our first and second results extend to minor-closed families of graphs. All our results extend to cost functions that are the pth power of the shortest-path distance. The algorithm is local search where the local neighborhood of a solution S consists of all solutions obtained from S by removing and adding 1/ε <sup xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">O(1)</sup> centers.
Year
DOI
Venue
2016
10.1109/FOCS.2016.46
2016 IEEE 57th Annual Symposium on Foundations of Computer Science (FOCS)
Keywords
Field
DocType
approximation schemes,k-means,k-median,facility location,Euclidean metric,planar graph,minor-free graphs
Discrete mathematics,Combinatorics,Chordal graph,Euclidean distance,Euclidean geometry,Local search (optimization),1-planar graph,Planar graph,Metric dimension,Mathematics,Bounded function
Conference
ISSN
ISBN
Citations 
0272-5428
978-1-5090-3934-0
4
PageRank 
References 
Authors
0.39
29
3
Name
Order
Citations
PageRank
Vincent Cohen-Addad18525.47
Philip N. Klein22681256.19
Claire Mathieu345225.78