Matches in SemOpenAlex for { <https://semopenalex.org/work/W2918223026> ?p ?o ?g. }
Showing items 1 to 94 of
94
with 100 items per page.
- W2918223026 abstract "Regular path queries (RPQs) are an essential component of graph query languages. Such queries consider a regular expression r and a directed edge-labeled graph G and search for paths in G for which the sequence of labels is in the language of r. In order to avoid having to consider infinitely many paths, some database engines restrict such paths to be trails, that is, they only consider paths without repeated edges. In this paper we consider the evaluation problem for RPQs under trail semantics, in the case where the expression is fixed. We show that, in this setting, there exists a trichotomy. More precisely, the complexity of RPQ evaluation divides the regular languages into the finite languages, the class Ttract (for which the problem is tractable), and the rest. Interestingly, the tractable class in the trichotomy is larger than for the trichotomy for simple paths, discovered by Bagan, Bonifati, and Groz [PODS 2013]. In addition to this trichotomy result, we also study characterizations of the tractable class, its expressivity, the recognition problem, closure properties, and show how the decision problem can be extended to the enumeration problem, which is relevant to practice." @default.
- W2918223026 created "2019-03-11" @default.
- W2918223026 creator A5009133355 @default.
- W2918223026 creator A5016412428 @default.
- W2918223026 creator A5037413059 @default.
- W2918223026 date "2019-03-01" @default.
- W2918223026 modified "2023-09-27" @default.
- W2918223026 title "A Trichotomy for Regular Trail Queries" @default.
- W2918223026 cites W1967565181 @default.
- W2918223026 cites W1982139456 @default.
- W2918223026 cites W2002326865 @default.
- W2918223026 cites W2007804392 @default.
- W2918223026 cites W2011282943 @default.
- W2918223026 cites W2019522567 @default.
- W2918223026 cites W2026713735 @default.
- W2918223026 cites W2039934838 @default.
- W2918223026 cites W2041340246 @default.
- W2918223026 cites W2043360684 @default.
- W2918223026 cites W2045426033 @default.
- W2918223026 cites W2045978585 @default.
- W2918223026 cites W2053229198 @default.
- W2918223026 cites W2059052871 @default.
- W2918223026 cites W2063985934 @default.
- W2918223026 cites W2076872551 @default.
- W2918223026 cites W2094518278 @default.
- W2918223026 cites W2100580582 @default.
- W2918223026 cites W2116250539 @default.
- W2918223026 cites W2135282325 @default.
- W2918223026 cites W2154682196 @default.
- W2918223026 cites W2415256127 @default.
- W2918223026 cites W2569646339 @default.
- W2918223026 cites W2740400026 @default.
- W2918223026 cites W2771362234 @default.
- W2918223026 cites W2798483562 @default.
- W2918223026 cites W2799059383 @default.
- W2918223026 cites W2912226968 @default.
- W2918223026 cites W2913970915 @default.
- W2918223026 cites W2974304695 @default.
- W2918223026 cites W2998210606 @default.
- W2918223026 hasPublicationYear "2019" @default.
- W2918223026 type Work @default.
- W2918223026 sameAs 2918223026 @default.
- W2918223026 citedByCount "0" @default.
- W2918223026 crossrefType "posted-content" @default.
- W2918223026 hasAuthorship W2918223026A5009133355 @default.
- W2918223026 hasAuthorship W2918223026A5016412428 @default.
- W2918223026 hasAuthorship W2918223026A5037413059 @default.
- W2918223026 hasConcept C118615104 @default.
- W2918223026 hasConcept C132525143 @default.
- W2918223026 hasConcept C138885662 @default.
- W2918223026 hasConcept C154945302 @default.
- W2918223026 hasConcept C2777212361 @default.
- W2918223026 hasConcept C2780233049 @default.
- W2918223026 hasConcept C33923547 @default.
- W2918223026 hasConcept C41008148 @default.
- W2918223026 hasConcept C41895202 @default.
- W2918223026 hasConcept C80444323 @default.
- W2918223026 hasConceptScore W2918223026C118615104 @default.
- W2918223026 hasConceptScore W2918223026C132525143 @default.
- W2918223026 hasConceptScore W2918223026C138885662 @default.
- W2918223026 hasConceptScore W2918223026C154945302 @default.
- W2918223026 hasConceptScore W2918223026C2777212361 @default.
- W2918223026 hasConceptScore W2918223026C2780233049 @default.
- W2918223026 hasConceptScore W2918223026C33923547 @default.
- W2918223026 hasConceptScore W2918223026C41008148 @default.
- W2918223026 hasConceptScore W2918223026C41895202 @default.
- W2918223026 hasConceptScore W2918223026C80444323 @default.
- W2918223026 hasLocation W29182230261 @default.
- W2918223026 hasOpenAccess W2918223026 @default.
- W2918223026 hasPrimaryLocation W29182230261 @default.
- W2918223026 hasRelatedWork W12202036 @default.
- W2918223026 hasRelatedWork W1781739513 @default.
- W2918223026 hasRelatedWork W1905052678 @default.
- W2918223026 hasRelatedWork W1988466532 @default.
- W2918223026 hasRelatedWork W2030827911 @default.
- W2918223026 hasRelatedWork W2058844036 @default.
- W2918223026 hasRelatedWork W2067253808 @default.
- W2918223026 hasRelatedWork W2090557973 @default.
- W2918223026 hasRelatedWork W2109671695 @default.
- W2918223026 hasRelatedWork W2120436863 @default.
- W2918223026 hasRelatedWork W2165864074 @default.
- W2918223026 hasRelatedWork W2401514316 @default.
- W2918223026 hasRelatedWork W2734482964 @default.
- W2918223026 hasRelatedWork W2914595612 @default.
- W2918223026 hasRelatedWork W2950314640 @default.
- W2918223026 hasRelatedWork W2953951489 @default.
- W2918223026 hasRelatedWork W3166830313 @default.
- W2918223026 hasRelatedWork W49821000 @default.
- W2918223026 hasRelatedWork W1754725800 @default.
- W2918223026 hasRelatedWork W3170665465 @default.
- W2918223026 isParatext "false" @default.
- W2918223026 isRetracted "false" @default.
- W2918223026 magId "2918223026" @default.
- W2918223026 workType "article" @default.