Abstract
We consider the following problem: given a connected graph G = (V, εE) and an additional edge set E, find a minimum size subset of edges F ⊆E suchth at (V,ε ∪F) is 2-edge connected. This problem is NP-hard. For a long time, 2 was the best approximation ratio known. Recently, Nagamochi reported a (1.875 + ε)-approximation algorithm. We give a new algorithm with a better approximation ratio of 3/2 and a practical running time.
Original language | English |
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Title of host publication | Approximation, Randomization, and Combinatorial Optimization |
Subtitle of host publication | Algorithms and Techniques - 4th International Workshop on Approximation, Algorithms for Combinatorial Optimization Problems, APPROX 2001 and 5th International Workshop on Randomization and Approximation Techniques in Computer Science, RANDOM 2001, Proceedings |
Editors | Luca Trevisan, Klaus Jansen, Michel Goemans, Jose D. P. Rolim |
Publisher | Springer Verlag |
Pages | 90-101 |
Number of pages | 12 |
ISBN (Electronic) | 3540424709 |
State | Published - 2015 |
Event | 4th International Workshop on Approximation Algorithms for Combinatorial Optimization Problems, APPROX 2001 and 5th International Workshop on Randomization and Approximation Techniques in Computer Science, RANDOM 2001 - Berkeley, United States Duration: 18 Aug 2001 → 20 Aug 2001 |
Publication series
Name | Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics) |
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Volume | 2129 |
ISSN (Print) | 0302-9743 |
ISSN (Electronic) | 1611-3349 |
Conference
Conference | 4th International Workshop on Approximation Algorithms for Combinatorial Optimization Problems, APPROX 2001 and 5th International Workshop on Randomization and Approximation Techniques in Computer Science, RANDOM 2001 |
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Country/Territory | United States |
City | Berkeley |
Period | 18/08/01 → 20/08/01 |
Bibliographical note
Publisher Copyright:© Springer-Verlag Berlin Heidelberg 2001