A modification of the greedy algorithm for vertex cover
β Scribed by Kenneth L. Clarkson
- Book ID
- 113162520
- Publisher
- Elsevier Science
- Year
- 1983
- Tongue
- English
- Weight
- 195 KB
- Volume
- 16
- Category
- Article
- ISSN
- 0020-0190
No coin nor oath required. For personal study only.
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We establish significantly improved bounds on the performance of the greedy algorithm for approximating set co¨er. In particular, we provide the first substantial Ž . improvement of the 20-year-old classical harmonic upper bound, H m , of Johnson, Lovasz, and Chvatal, by showing that the performance
We prove that the classical bounds on the performance of the greedy algorithm for approximating MINIMUM COVER with costs are valid for PARTIAL. COVER as well, thus lowering, by more than a factor of two, the previously known estimate. In order to do so, we introduce a new simple technique that might