2463 search results - page 133 / 493 » Rankings of Directed Graphs |
CORR
2010
Springer
13 years 9 months ago
2010
Springer
The oriented chromatic number of an oriented graph G is the minimum order of an oriented graph H such that G admits a homomorphism to H. The oriented chromatic number of an undire...
EDBT
2009
ACM
14 years 1 months ago
2009
ACM
Structured data including sets, sequences, trees and graphs, pose significant challenges to fundamental aspects of data management such as efficient storage, indexing, and simila...
SODA
2010
ACM
14 years 6 months ago
2010
ACM
We study integrality gaps and approximability of two closely related problems on directed graphs. Given a set V of n nodes in an underlying asymmetric metric and two specified nod...
INFOCOM
2002
IEEE
14 years 2 months ago
2002
IEEE
— Directional antennas can be useful in significantly increasing node and network lifetime in wireless ad hoc networks. In order to utilize directional antennas, an algorithm is ...
BMCBI
2008
13 years 9 months ago
2008
Background: Relationships between entities such as genes, chemicals, metabolites, phenotypes and diseases in MEDLINE are often directional. That is, one may affect the other in a ...