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» Minimal Partitions of a Graph
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155
Voted
ICDE
2010
IEEE
209views Database» more  ICDE 2010»
15 years 9 months ago
Overlapping Community Search for social networks
— Finding decompositions of a graph into a family of clusters is crucial to understanding its underlying structure. While most existing approaches focus on partitioning the nodes...
Arnau Padrol-Sureda, Guillem Perarnau-Llobet, Juli...
136
Voted
ARSCOM
2007
191views more  ARSCOM 2007»
15 years 3 months ago
Binomial Identities Generated by Counting Spanning Trees
We partition the set of spanning trees contained in the complete graph Kn into spanning trees contained in the complete bipartite graph Ks,t. This relation will show that any prop...
Thomas Dale Porter
144
Voted
CPC
2004
136views more  CPC 2004»
15 years 3 months ago
On the Strong Chromatic Number
The strong chromatic number, S(G), of an n-vertex graph G is the smallest number k such that after adding kn/k-n isolated vertices to G and considering any partition of the vertic...
Penny E. Haxell
131
Voted
STOC
2006
ACM
113views Algorithms» more  STOC 2006»
15 years 9 months ago
Logarithmic hardness of the directed congestion minimization problem
We show that for any constant ε > 0, there is no Ω(log1−ε M)approximation algorithm for the directed congestion minimization problem on networks of size M unless NP ⊆ Z...
Matthew Andrews, Lisa Zhang
EOR
2008
90views more  EOR 2008»
15 years 3 months ago
An improved simulated annealing algorithm for bandwidth minimization
In this paper, a simulated annealing algorithm is presented for the Bandwidth Minimization Problem for Graphs. This algorithm is based on three distinguished features including an...
Eduardo Rodriguez-Tello, Jin-Kao Hao, Jose Torres-...