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SCN
2008
Springer
128views Communications» more  SCN 2008»
13 years 7 months ago
On Linear Secret Sharing for Connectivity in Directed Graphs
In this work we study linear secret sharing schemes for s-t connectivity in directed graphs. In such schemes the parties are edges of a complete directed graph, and a set of partie...
Amos Beimel, Anat Paskin
PRL
1998
91views more  PRL 1998»
13 years 7 months ago
Genetic operators for hierarchical graph clustering
In this paper we propose an encoding scheme and ad hoc operators for a genetic approach to hierarchical graph clustering. Given a connected graph whose vertices correspond to poin...
Stefano Rizzi
CLUSTER
2000
IEEE
14 years 1 days ago
Contention-free Complete Exchange Algorithm on Clusters
To construct a large commodity clustec a hierarchical network is generally adopted for connecting the host muchines, where a Gigabit backbone switch connects a few commodity switc...
Anthony T. C. Tam, Cho-Li Wang
STOC
2010
ACM
295views Algorithms» more  STOC 2010»
14 years 14 days ago
Approximation Schemes for Steiner Forest on Planar Graphs and Graphs of Bounded Treewidth
We give the first polynomial-time approximation scheme (PTAS) for the Steiner forest problem on planar graphs and, more generally, on graphs of bounded genus. As a first step, w...
MohammadHossein Bateni, MohammadTaghi Hajiaghayi a...
ENDM
2007
114views more  ENDM 2007»
13 years 7 months ago
The Connectivity of addition Cayley graphs
For any finite abelian group G and any subset S ⊆ G, we determine the connectivity of the addition Cayley graph induced by S on G. Moreover, we show that if this graph is not c...
David J. Grynkiewicz, Vsevolod F. Lev, Oriol Serra