Matches in SemOpenAlex for { <https://semopenalex.org/work/W2143706788> ?p ?o ?g. }
Showing items 1 to 74 of
74
with 100 items per page.
- W2143706788 abstract "The notion of representation systems describes structures that are algebraically closed under queries. It has recently been realized that representation systems are highly relevant also in the context of data exchange. We extend the notion of representation system to encompass data exchange mappings and their composition. Seen through this lens, two major classes of representation systems emerge, namely homomorphic data exchange systems and strong data exchange systems. The homomorphic OWA systems encompass the classical part of data exchange. Reasoning is modulo homomorphic equivalence (CQ-equivalence), and only unions of conjunctive queries and monotone data exchange mappings are supported.We then develop some new technical tools that allow us to prove that there is a class of 'CWA strong representation systems in which reasoning is modulo isomorphic equivalence. These systems are based on conditional tables, and they support first order queries and non-monotonic data exchange mappings specified by a large class of second order dependencies. We achieve this by showing that, under a CWA-interpretation, conditional tables are chaseable with the aforementioned class of second order dependencies, and that the class is closed under composition in the CWA-setting.We also introduce a stricter notion of composability, and show that the class of (first order) source-to-target tuple generating dependencies is closed under the stricter notion of composability." @default.
- W2143706788 created "2016-06-24" @default.
- W2143706788 creator A5005714968 @default.
- W2143706788 creator A5015178495 @default.
- W2143706788 date "2012-03-26" @default.
- W2143706788 modified "2023-09-24" @default.
- W2143706788 title "Representation systems for data exchange" @default.
- W2143706788 cites W1965776893 @default.
- W2143706788 cites W1968327952 @default.
- W2143706788 cites W1974717772 @default.
- W2143706788 cites W1990391007 @default.
- W2143706788 cites W1993268751 @default.
- W2143706788 cites W2019720483 @default.
- W2143706788 cites W2020228538 @default.
- W2143706788 cites W2046619512 @default.
- W2143706788 cites W2050171146 @default.
- W2143706788 cites W2050265418 @default.
- W2143706788 cites W2057069578 @default.
- W2143706788 cites W2066579853 @default.
- W2143706788 cites W2090958287 @default.
- W2143706788 cites W2095609152 @default.
- W2143706788 cites W2102702756 @default.
- W2143706788 cites W2126225192 @default.
- W2143706788 cites W2137208394 @default.
- W2143706788 cites W2142864156 @default.
- W2143706788 cites W2146067979 @default.
- W2143706788 cites W2147495866 @default.
- W2143706788 cites W2163009148 @default.
- W2143706788 cites W2171094216 @default.
- W2143706788 cites W4252098605 @default.
- W2143706788 doi "https://doi.org/10.1145/2274576.2274599" @default.
- W2143706788 hasPublicationYear "2012" @default.
- W2143706788 type Work @default.
- W2143706788 sameAs 2143706788 @default.
- W2143706788 citedByCount "5" @default.
- W2143706788 countsByYear W21437067882014 @default.
- W2143706788 countsByYear W21437067882015 @default.
- W2143706788 countsByYear W21437067882016 @default.
- W2143706788 crossrefType "proceedings-article" @default.
- W2143706788 hasAuthorship W2143706788A5005714968 @default.
- W2143706788 hasAuthorship W2143706788A5015178495 @default.
- W2143706788 hasConcept C15845906 @default.
- W2143706788 hasConcept C17744445 @default.
- W2143706788 hasConcept C199539241 @default.
- W2143706788 hasConcept C2776359362 @default.
- W2143706788 hasConcept C41008148 @default.
- W2143706788 hasConcept C77088390 @default.
- W2143706788 hasConcept C80444323 @default.
- W2143706788 hasConcept C94625758 @default.
- W2143706788 hasConceptScore W2143706788C15845906 @default.
- W2143706788 hasConceptScore W2143706788C17744445 @default.
- W2143706788 hasConceptScore W2143706788C199539241 @default.
- W2143706788 hasConceptScore W2143706788C2776359362 @default.
- W2143706788 hasConceptScore W2143706788C41008148 @default.
- W2143706788 hasConceptScore W2143706788C77088390 @default.
- W2143706788 hasConceptScore W2143706788C80444323 @default.
- W2143706788 hasConceptScore W2143706788C94625758 @default.
- W2143706788 hasLocation W21437067881 @default.
- W2143706788 hasOpenAccess W2143706788 @default.
- W2143706788 hasPrimaryLocation W21437067881 @default.
- W2143706788 hasRelatedWork W1889934247 @default.
- W2143706788 hasRelatedWork W2174625778 @default.
- W2143706788 hasRelatedWork W2347608685 @default.
- W2143706788 hasRelatedWork W2381679763 @default.
- W2143706788 hasRelatedWork W2386176528 @default.
- W2143706788 hasRelatedWork W2386412206 @default.
- W2143706788 hasRelatedWork W2390681365 @default.
- W2143706788 hasRelatedWork W2392953011 @default.
- W2143706788 hasRelatedWork W2800642321 @default.
- W2143706788 hasRelatedWork W86891159 @default.
- W2143706788 isParatext "false" @default.
- W2143706788 isRetracted "false" @default.
- W2143706788 magId "2143706788" @default.
- W2143706788 workType "article" @default.