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TPDS
2010
98views more  TPDS 2010»
15 years 2 months ago
Minimum Latency Gossiping in Radio Networks
—We studied the minimum latency gossiping (all-to-all broadcast) problem in multihop radio networks defined as follows: Each node in the network is preloaded with a message and t...
Scott C.-H. Huang, Peng-Jun Wan, Hongwei Du, E. K....
APPROX
2004
Springer
135views Algorithms» more  APPROX 2004»
15 years 9 months ago
The Diameter of Randomly Perturbed Digraphs and Some Applications.
The central observation of this paper is that if ǫn random arcs are added to any n-node strongly connected digraph with bounded degree then the resulting graph has diameter O(ln ...
Abraham Flaxman, Alan M. Frieze
STOC
2010
ACM
211views Algorithms» more  STOC 2010»
16 years 1 months ago
Maintaining a Large Matching or a Small Vertex Cover
We consider the problem of maintaining a large matching or a small vertex cover in a dynamically changing graph. Each update to the graph is either an edge deletion or an edge ins...
Krzysztof Onak and Ronitt Rubinfeld
ICALP
2007
Springer
15 years 10 months ago
Parameterized Approximability of the Disjoint Cycle Problem
Abstract. We give an fpt approximation algorithm for the directed vertex disjoint cycle problem. Given a directed graph G with n vertices and a positive integer k, the algorithm co...
Martin Grohe, Magdalena Grüber
WADS
2007
Springer
91views Algorithms» more  WADS 2007»
15 years 10 months ago
Kernelization and Complexity Results for Connectivity Augmentation Problems
Connectivity augmentation problems ask for adding a set of at most k edges whose insertion makes a given graph satisfy a specified connectivity property, such as bridge-connectivi...
Jiong Guo, Johannes Uhlmann