Those independence systems on finite partially ordered sets are characterized for which the greedy algorithm always works. 'Fhe greedy ulgsrithm far gtartIally ordered fete
An analysis of the greedy algorithm for partially ordered sets
β Scribed by Cornelius Croitoru
- Publisher
- Elsevier Science
- Year
- 1982
- Tongue
- English
- Weight
- 260 KB
- Volume
- 4
- Category
- Article
- ISSN
- 0166-218X
No coin nor oath required. For personal study only.
π SIMILAR VOLUMES
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