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APPROX
2004
Springer
135views Algorithms» more  APPROX 2004»
14 years 1 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
STACS
2007
Springer
14 years 1 months ago
New Approximation Algorithms for Minimum Cycle Bases of Graphs
We consider the problem of computing an approximate minimum cycle basis of an undirected non-negative edge-weighted graph G with m edges and n vertices; the extension to directed ...
Telikepalli Kavitha, Kurt Mehlhorn, Dimitrios Mich...
SPAA
2010
ACM
14 years 14 days ago
Basic network creation games
We study a natural network creation game, in which each node locally tries to minimize its local diameter or its local average distance to other nodes, by swapping one incident ed...
Noga Alon, Erik D. Demaine, MohammadTaghi Hajiagha...
SPAA
2006
ACM
14 years 1 months ago
Semi-oblivious routing
We initiate the study of semi-oblivious routing, a relaxation of oblivious routing which is first introduced by R¨acke and led to many subsequent improvements and applications. ...
Mohammad Taghi Hajiaghayi, Robert D. Kleinberg, To...
CVPR
2007
IEEE
14 years 2 months ago
A Graph Reduction Method for 2D Snake Problems
Energy-minimizing active contour models (snakes) have been proposed for solving many computer vision problems such as object segmentation, surface reconstruction, and object track...
Jianhua Yan, Keqi Zhang, Chengcui Zhang, Shu-Ching...