1756 search results - page 65 / 352 » Directed scale-free graphs |
121
Voted
SODA
2010
ACM
15 years 10 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...
108
Voted
INFOCOM
2002
IEEE
15 years 5 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 ...
85
Voted
BMCBI
2008
15 years 22 days 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 ...
124
Voted
SODA
2003
ACM
15 years 1 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...
107
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CC
2008
Springer
15 years 21 days ago
2008
Springer
We prove a version of the derandomized Direct Product lemma for deterministic space-bounded algorithms. Suppose a Boolean function g : {0, 1}n {0, 1} cannot be computed on more th...