116 search results - page 3 / 24 » Testing Euclidean Spanners |
FOCS
2008
IEEE
14 years 21 days ago
2008
IEEE
We show that for every n-point metric space M and positive integer k, there exists a spanning tree T with unweighted diameter O(k) and weight w(T) = O(k · n1/k ) · w(MST(M)), an...
DCG
2010
13 years 6 months ago
2010
WADS
2007
Springer
14 years 10 days ago
2007
Springer
We present a polynomial-time approximation scheme (PTAS) for the Steiner tree problem with polygonal obstacles in the plane with running time O(n log2 n), where n denotes the numb...
COMPGEOM
2004
ACM
13 years 11 months ago
2004
ACM
For a set S of points in Rd, an s-spanner is a graph on S such that any pair of points is connected via some path in the spanner whose total length is at most s times the Euclidea...
WADS
2007
Springer
14 years 10 days ago
2007
Springer
A ball graph is an intersection graph of a set of balls with arbitrary radii. Given a real number t > 1, we say that a subgraph G′ of a graph G is a t-spanner of G, if for eve...