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DAM
1999
169views more  DAM 1999»
15 years 3 months ago
Approximating the Weight of Shallow Steiner Trees
This paper deals with the problem of constructing Steiner trees of minimum weight with diameter bounded by d, spanning a given set of vertices in a graph. Exact solutions or logar...
Guy Kortsarz, David Peleg
COLING
2010
14 years 11 months ago
Automatic analysis of semantic similarity in comparable text through syntactic tree matching
We propose to analyse semantic similarity in comparable text by matching syntactic trees and labeling the alignments according to one of five semantic similarity relations. We pre...
Erwin Marsi, Emiel Krahmer
GECCO
2007
Springer
162views Optimization» more  GECCO 2007»
15 years 10 months ago
Some novel locality results for the blob code spanning tree representation
The Blob Code is a bijective tree code that represents each tree on n labelled vertices as a string of n − 2 vertex labels. In recent years, several researchers have deployed th...
Tim Paulden, David K. Smith
STOC
2007
ACM
239views Algorithms» more  STOC 2007»
16 years 4 months ago
Approximating minimum bounded degree spanning trees to within one of optimal
In the MINIMUM BOUNDED DEGREE SPANNING TREE problem, we are given an undirected graph with a degree upper bound Bv on each vertex v, and the task is to find a spanning tree of min...
Mohit Singh, Lap Chi Lau
SPAA
2010
ACM
15 years 9 months ago
Delays induce an exponential memory gap for rendezvous in trees
The aim of rendezvous in a graph is meeting of two mobile agents at some node of an unknown anonymous connected graph. The two identical agents start from arbitrary nodes in the g...
Pierre Fraigniaud, Andrzej Pelc