Sciweavers

1736 search results - page 75 / 348
» The rank-width of Directed Graphs
Sort
View
ECCC
2007
147views more  ECCC 2007»
15 years 3 months ago
Inapproximability of edge-disjoint paths and low congestion routing on undirected graphs
In the undirected Edge-Disjoint Paths problem with Congestion (EDPwC), we are given an undirected graph with V nodes, a set of terminal pairs and an integer c. The objective is to...
Matthew Andrews, Julia Chuzhoy, Venkatesan Guruswa...
EDBT
2008
ACM
160views Database» more  EDBT 2008»
15 years 5 months ago
Taxonomy-superimposed graph mining
New graph structures where node labels are members of hierarchically organized ontologies or taxonomies have become commonplace in different domains, e.g., life sciences. It is a ...
Ali Cakmak, Gultekin Özsoyoglu
SODA
2012
ACM
225views Algorithms» more  SODA 2012»
13 years 6 months ago
Approximating rooted Steiner networks
The Directed Steiner Tree (DST) problem is a cornerstone problem in network design. We focus on the generalization of the problem with higher connectivity requirements. The proble...
Joseph Cheriyan, Bundit Laekhanukit, Guyslain Nave...
EDBT
2010
ACM
138views Database» more  EDBT 2010»
15 years 9 months ago
How to authenticate graphs without leaking
Secure data sharing in multi-party environments requires that both authenticity and confidentiality of the data be assured. Digital signature schemes are commonly employed for au...
Ashish Kundu, Elisa Bertino
COMBINATORICS
2000
114views more  COMBINATORICS 2000»
15 years 3 months ago
Trees and Matchings
In this article, Temperley's bijection between spanning trees of the square grid on the one hand, and perfect matchings (also known as dimer coverings) of the square grid on ...
Richard Kenyon, James Gary Propp, David Bruce Wils...