226 search results - page 37 / 46 » Lower bounds on the obstacle number of graphs |
IJMC
2006
13 years 7 months ago
2006
: The Channel Assignment Problem is an NP-complete problem to assign a minimum number of channels under certain constraints to requested calls in a cellular radio system. Examples ...
SODA
2003
ACM
13 years 9 months ago
2003
ACM
The natural relaxation for the Group Steiner Tree problem, as well as for its generalization, the Directed Steiner Tree problem, is a flow-based linear programming relaxation. We...
SODA
2012
ACM
11 years 10 months ago
2012
ACM
The Densest k-subgraph problem (i.e. find a size k subgraph with maximum number of edges), is one of the notorious problems in approximation algorithms. There is a significant g...
ICDCS
2009
IEEE
14 years 5 months ago
2009
IEEE
We consider the distributed complexity of the stable marriage problem. In this problem, the communication graph is undirected and bipartite, and each node ranks its neighbors. Giv...
INFOCOM
2006
IEEE
14 years 1 months ago
2006
IEEE
Abstract— Sensors typically use wireless transmitters to communicate with each other. However, sensors may be located in a way that they cannot even form a connected network (e.g...