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2005-03-01Konferenzveröffentlichung DOI: 10.18452/9200
Self-Extending Peer Data Management
dc.contributor.authorHeese, Ralf
dc.contributor.authorHerschel, Sven
dc.contributor.authorNaumann, Felix
dc.contributor.authorRoth, Armin
dc.date.accessioned2017-06-17T00:20:32Z
dc.date.available2017-06-17T00:20:32Z
dc.date.created2006-06-29
dc.date.issued2005-03-01
dc.identifier.isbn3-88579-394-6
dc.identifier.urihttp://edoc.hu-berlin.de/18452/9852
dc.description.abstractPeer data management systems (PDMS) are the natural extension of integrated information systems. Conventionally, a single integrating system manages an integrated schema, distributes queries to appropriate sources, and integrates incoming data to a common result. In contrast, a PDMS consists of a set of peers, each of which can play the role of an integrating component. A peer knows about its neighboring peers by mappings, which help to translate queries and transform data. Queries submitted to one peer are answered by data residing at that peer and by data that is reached along paths of mappings through the network of peers. The only restriction for PDMS to cover unbounded data is the need to formulate at least one mapping from some known peer to a new data source. We propose a Semantic Web based method that overcomes this restriction, albeit at a price. As sources are dynamically and automatically included in a PDMS, three factors diminish quality: The new source itself might store data of poor quality, the mapping to the PDMS might be incorrect, and the mapping to the PDMS might be incomplete. To compensate, we propose a quality model to measure this effect, a cost model to restrict query planning to the best paths through the PDMS, and techniques to answer queries in such Webscale PDMS efficiently.eng
dc.language.isoeng
dc.publisherHumboldt-Universität zu Berlin, Mathematisch-Naturwissenschaftliche Fakultät II
dc.rights.urihttp://rightsstatements.org/vocab/InC/1.0/
dc.subjectSchema Mappingeng
dc.subjectSemantic Webeng
dc.subjectP2Peng
dc.subjectQuery Planningeng
dc.subject.ddc004 Informatik
dc.titleSelf-Extending Peer Data Management
dc.typeconferenceObject
dc.identifier.urnurn:nbn:de:kobv:11-10065403
dc.identifier.doihttp://dx.doi.org/10.18452/9200
local.edoc.container-title11. BTW 2005
local.edoc.container-title11. BTW 2005
local.edoc.container-titleLecture Notes in Informatics (LNI)
local.edoc.fp-subtypepaper
local.edoc.type-nameKonferenzveröffentlichung
local.edoc.institutionMathematisch-Naturwissenschaftliche Fakultät II
local.edoc.container-typeconference
local.edoc.container-type-nameKonferenz
local.edoc.container-urlhttp://www.gi-ev.de/
local.edoc.container-publisher-nameGI
local.edoc.container-publisher-placeKarlsruhe
local.edoc.container-eventLecture Notes in Informatics (LNI), 65, 2005, pp 165-174, 11. BTW 2005, Karlsruhe, 02.03.2005 - 04.03.2005
local.edoc.container-volume65
local.edoc.container-year2005
local.edoc.container-firstpage165
local.edoc.container-lastpage174
dc.description.versionPeer Reviewed

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