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» Maintaining Minimum Spanning Trees in Dynamic Graphs
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STOC
2003
ACM
171views Algorithms» more  STOC 2003»
14 years 8 months ago
Primal-dual meets local search: approximating MST's with nonuniform degree bounds
We present a new bicriteria approximation algorithm for the degree-bounded minimum-cost spanning tree problem: Given an undirected graph with nonnegative edge weights and degree b...
Jochen Könemann, R. Ravi
IPPS
2010
IEEE
13 years 5 months ago
A scalable algorithm for maintaining perpetual system connectivity in dynamic distributed systems
We investigate the problem of maintaining a topology with small degree as well as small diameter in a dynamic distributed system such that the system always stays connected and pr...
Tarun Bansal, Neeraj Mittal
ENTCS
2007
110views more  ENTCS 2007»
13 years 7 months ago
Algorithmic Techniques for Maintaining Shortest Routes in Dynamic Networks
In this paper, we survey algorithms for shortest paths in dynamic networks. Although research on this problem spans over more than three decades, in the last couple of years many ...
Camil Demetrescu, Giuseppe F. Italiano
JOIN
2007
91views more  JOIN 2007»
13 years 7 months ago
An Optimal Rebuilding Strategy for an Incremental Tree Problem
This paper is devoted to the following incremental problem. Initially, a graph and a distinguished subset of vertices, called initial group, are given. This group is connected by ...
Nicolas Thibault, Christian Laforest
PODS
1994
ACM
138views Database» more  PODS 1994»
14 years 10 hour ago
Dyn-FO: A Parallel, Dynamic Complexity Class
Traditionally, computational complexity has considered only static problems. Classical Complexity Classes such as NC, P, and NP are de ned in terms of the complexity of checking {...
Sushant Patnaik, Neil Immerman