Matches in SemOpenAlex for { <https://semopenalex.org/work/W4302520171> ?p ?o ?g. }
Showing items 1 to 70 of
70
with 100 items per page.
- W4302520171 abstract "We obtain a 1.5-approximation algorithm for the metric uncapacitated facility location problem (UFL), which improves on the previously best known 1.52-approximation algorithm by Mahdian, Ye and Zhang. Note, that the approximability lower bound by Guha and Khuller is 1.463. An algorithm is a {em ($lambda_f$,$lambda_c$)-approximation algorithm} if the solution it produces has total cost at most $lambda_f cdot F^* + lambda_c cdot C^*$, where $F^*$ and $C^*$ are the facility and the connection cost of an optimal solution. Our new algorithm, which is a modification of the $(1+2/e)$-approximation algorithm of Chudak and Shmoys, is a (1.6774,1.3738)-approximation algorithm for the UFL problem and is the first one that touches the approximability limit curve $(gamma_f, 1+2e^{-gamma_f})$ established by Jain, Mahdian and Saberi. As a consequence, we obtain the first optimal approximation algorithm for instances dominated by connection costs. When combined with a (1.11,1.7764)-approximation algorithm proposed by Jain et al., and later analyzed by Mahdian et al., we obtain the overall approximation guarantee of 1.5 for the metric UFL problem. We also describe how to use our algorithm to improve the approximation ratio for the 3-level version of UFL." @default.
- W4302520171 created "2022-10-06" @default.
- W4302520171 creator A5023591555 @default.
- W4302520171 creator A5023942331 @default.
- W4302520171 date "2007-03-02" @default.
- W4302520171 modified "2023-09-29" @default.
- W4302520171 title "An optimal bifactor approximation algorithm for the metric uncapacitated facility location problem" @default.
- W4302520171 doi "https://doi.org/10.48550/arxiv.cs/0703010" @default.
- W4302520171 hasPublicationYear "2007" @default.
- W4302520171 type Work @default.
- W4302520171 citedByCount "0" @default.
- W4302520171 crossrefType "posted-content" @default.
- W4302520171 hasAuthorship W4302520171A5023591555 @default.
- W4302520171 hasAuthorship W4302520171A5023942331 @default.
- W4302520171 hasBestOaLocation W43025201711 @default.
- W4302520171 hasConcept C108005400 @default.
- W4302520171 hasConcept C11413529 @default.
- W4302520171 hasConcept C114614502 @default.
- W4302520171 hasConcept C121332964 @default.
- W4302520171 hasConcept C122383733 @default.
- W4302520171 hasConcept C126255220 @default.
- W4302520171 hasConcept C13355873 @default.
- W4302520171 hasConcept C134306372 @default.
- W4302520171 hasConcept C148764684 @default.
- W4302520171 hasConcept C151201525 @default.
- W4302520171 hasConcept C162324750 @default.
- W4302520171 hasConcept C176217482 @default.
- W4302520171 hasConcept C21547014 @default.
- W4302520171 hasConcept C2524010 @default.
- W4302520171 hasConcept C2778113609 @default.
- W4302520171 hasConcept C33923547 @default.
- W4302520171 hasConcept C62520636 @default.
- W4302520171 hasConceptScore W4302520171C108005400 @default.
- W4302520171 hasConceptScore W4302520171C11413529 @default.
- W4302520171 hasConceptScore W4302520171C114614502 @default.
- W4302520171 hasConceptScore W4302520171C121332964 @default.
- W4302520171 hasConceptScore W4302520171C122383733 @default.
- W4302520171 hasConceptScore W4302520171C126255220 @default.
- W4302520171 hasConceptScore W4302520171C13355873 @default.
- W4302520171 hasConceptScore W4302520171C134306372 @default.
- W4302520171 hasConceptScore W4302520171C148764684 @default.
- W4302520171 hasConceptScore W4302520171C151201525 @default.
- W4302520171 hasConceptScore W4302520171C162324750 @default.
- W4302520171 hasConceptScore W4302520171C176217482 @default.
- W4302520171 hasConceptScore W4302520171C21547014 @default.
- W4302520171 hasConceptScore W4302520171C2524010 @default.
- W4302520171 hasConceptScore W4302520171C2778113609 @default.
- W4302520171 hasConceptScore W4302520171C33923547 @default.
- W4302520171 hasConceptScore W4302520171C62520636 @default.
- W4302520171 hasLocation W43025201711 @default.
- W4302520171 hasLocation W43025201712 @default.
- W4302520171 hasLocation W43025201713 @default.
- W4302520171 hasLocation W43025201714 @default.
- W4302520171 hasLocation W43025201715 @default.
- W4302520171 hasLocation W43025201716 @default.
- W4302520171 hasOpenAccess W4302520171 @default.
- W4302520171 hasPrimaryLocation W43025201711 @default.
- W4302520171 hasRelatedWork W1556407051 @default.
- W4302520171 hasRelatedWork W1973529814 @default.
- W4302520171 hasRelatedWork W2160082102 @default.
- W4302520171 hasRelatedWork W2548110883 @default.
- W4302520171 hasRelatedWork W2762633139 @default.
- W4302520171 hasRelatedWork W2766741168 @default.
- W4302520171 hasRelatedWork W2935647112 @default.
- W4302520171 hasRelatedWork W2949839236 @default.
- W4302520171 hasRelatedWork W3136436047 @default.
- W4302520171 hasRelatedWork W4302520171 @default.
- W4302520171 isParatext "false" @default.
- W4302520171 isRetracted "false" @default.
- W4302520171 workType "article" @default.