FRINK Linked Data Fragments server

Matches in SemOpenAlex for { <https://semopenalex.org/work/W3125961574> ?p ?o ?g. }

• W3125961574 abstract "The topology of the Internet has initially been modelled as an undirected graph, where vertices correspond to so-called Autonomous Systems (ASs), and edges correspond to physical links between pairs of ASs. However, in order to capture the impact of routing policies, it has recently become apparent that one needs to classify the edges according to the existing economic relationships (customer-provider, peer-to-peer or siblings) between the ASs. This leads to a directed graph model in which traffic can be sent only along so-called valley-free paths. Four different algorithms have been proposed in the literature for inferring AS relationships using publicly available data from routing tables. We investigate the differences in the graph models produced by these algorithms, focussing on connectivity measures. To this aim, we compute the maximum number of vertex-disjoint valley-free paths between ASs as well as the size of a minimum cut separating a pair of ASs. Although these problems are solvable in polynomial time for ordinary graphs, they are NP-hard in our setting. We formulate the two problems as integer programs, and we propose a number of exact algorithms for solving them. For the problem of finding the maximum number of vertex-disjoint paths, we discuss two algorithms; the first one is a branch-and-price algorithm based on the IP formulation, and the second algorithm is a non LP based branch-and-bound algorithm. For the problem of finding minimum cuts we use a branch-and-cut algorithm, based on the IP formulation of this problem. Using these algorithms, we obtain exact solutions for both problems in reasonable time. It turns out that there is a large gap in terms of the connectivity measures between the undirected and directed models. This finding supports our conclusion that economic relationships need to be taken into account when building a topology of the Internet." @default.
• W3125961574 created "2021-02-01" @default.
• W3125961574 creator A5015881910 @default.
• W3125961574 creator A5049579750 @default.
• W3125961574 creator A5052356379 @default.
• W3125961574 creator A5063153364 @default.
• W3125961574 date "2005-01-01" @default.
• W3125961574 modified "2023-09-23" @default.
• W3125961574 title "Connectivity measures for internet topologies" @default.
• W3125961574 cites W1509593767 @default.
• W3125961574 cites W1522559342 @default.
• W3125961574 cites W1536968729 @default.
• W3125961574 cites W1583982697 @default.
• W3125961574 cites W1595451540 @default.
• W3125961574 cites W1977545325 @default.
• W3125961574 cites W1982814022 @default.
• W3125961574 cites W2013479503 @default.
• W3125961574 cites W2050353626 @default.
• W3125961574 cites W2070024382 @default.
• W3125961574 cites W2083154761 @default.
• W3125961574 cites W2100440346 @default.
• W3125961574 cites W2103440894 @default.
• W3125961574 cites W2130725804 @default.
• W3125961574 cites W2145343762 @default.
• W3125961574 cites W2146164879 @default.
• W3125961574 cites W2151972741 @default.
• W3125961574 cites W2167580124 @default.
• W3125961574 cites W2170373413 @default.
• W3125961574 cites W2799004609 @default.
• W3125961574 cites W90432960 @default.
• W3125961574 hasPublicationYear "2005" @default.
• W3125961574 type Work @default.
• W3125961574 sameAs 3125961574 @default.
• W3125961574 citedByCount "0" @default.
• W3125961574 crossrefType "journal-article" @default.
• W3125961574 hasAuthorship W3125961574A5015881910 @default.
• W3125961574 hasAuthorship W3125961574A5049579750 @default.
• W3125961574 hasAuthorship W3125961574A5052356379 @default.
• W3125961574 hasAuthorship W3125961574A5063153364 @default.
• W3125961574 hasConcept C111919701 @default.
• W3125961574 hasConcept C11413529 @default.
• W3125961574 hasConcept C114614502 @default.
• W3125961574 hasConcept C118615104 @default.
• W3125961574 hasConcept C132525143 @default.
• W3125961574 hasConcept C199845137 @default.
• W3125961574 hasConcept C311688 @default.
• W3125961574 hasConcept C33923547 @default.
• W3125961574 hasConcept C41008148 @default.
• W3125961574 hasConcept C45340560 @default.
• W3125961574 hasConcept C80444323 @default.
• W3125961574 hasConcept C80899671 @default.
• W3125961574 hasConceptScore W3125961574C111919701 @default.
• W3125961574 hasConceptScore W3125961574C11413529 @default.
• W3125961574 hasConceptScore W3125961574C114614502 @default.
• W3125961574 hasConceptScore W3125961574C118615104 @default.
• W3125961574 hasConceptScore W3125961574C132525143 @default.
• W3125961574 hasConceptScore W3125961574C199845137 @default.
• W3125961574 hasConceptScore W3125961574C311688 @default.
• W3125961574 hasConceptScore W3125961574C33923547 @default.
• W3125961574 hasConceptScore W3125961574C41008148 @default.
• W3125961574 hasConceptScore W3125961574C45340560 @default.
• W3125961574 hasConceptScore W3125961574C80444323 @default.
• W3125961574 hasConceptScore W3125961574C80899671 @default.
• W3125961574 hasOpenAccess W3125961574 @default.
• W3125961574 hasRelatedWork W1490453162 @default.
• W3125961574 hasRelatedWork W1598432679 @default.
• W3125961574 hasRelatedWork W1964419312 @default.
• W3125961574 hasRelatedWork W1988680180 @default.
• W3125961574 hasRelatedWork W2034939140 @default.
• W3125961574 hasRelatedWork W2090983143 @default.
• W3125961574 hasRelatedWork W2157759636 @default.
• W3125961574 hasRelatedWork W2175273167 @default.
• W3125961574 hasRelatedWork W2525186157 @default.
• W3125961574 hasRelatedWork W2543320042 @default.
• W3125961574 hasRelatedWork W2565761069 @default.
• W3125961574 hasRelatedWork W2583267641 @default.
• W3125961574 hasRelatedWork W2742303955 @default.
• W3125961574 hasRelatedWork W2767579966 @default.
• W3125961574 hasRelatedWork W2998789694 @default.
• W3125961574 hasRelatedWork W3021643245 @default.
• W3125961574 hasRelatedWork W3146698804 @default.
• W3125961574 hasRelatedWork W3163544270 @default.
• W3125961574 hasRelatedWork W3204120034 @default.
• W3125961574 hasRelatedWork W2247768113 @default.
• W3125961574 isParatext "false" @default.
• W3125961574 isRetracted "false" @default.
• W3125961574 magId "3125961574" @default.
• W3125961574 workType "article" @default.