A framework for semantic grouping in P2P databases

Kantere, V; Tsoumakos, D; Sellis, T

dc.contributor.author	Kantere, V	en
dc.contributor.author	Tsoumakos, D	en
dc.contributor.author	Sellis, T	en
dc.date.accessioned	2014-03-01T01:27:40Z
dc.date.available	2014-03-01T01:27:40Z
dc.date.issued	2008	en
dc.identifier.issn	0306-4379	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/18532
dc.subject	P2P databases	en
dc.subject	Semantic grouping	en
dc.subject	Semantic matching	en
dc.subject	Semantic query processing	en
dc.subject.classification	Computer Science, Information Systems	en
dc.subject.other	Chlorine compounds	en
dc.subject.other	Database systems	en
dc.subject.other	Health care	en
dc.subject.other	Joining	en
dc.subject.other	Semantics	en
dc.subject.other	Active nodes	en
dc.subject.other	Challenging problem	en
dc.subject.other	Creation process	en
dc.subject.other	Experimental evaluations	en
dc.subject.other	Global schema	en
dc.subject.other	Information exchanging	en
dc.subject.other	Mediated schema	en
dc.subject.other	Network links	en
dc.subject.other	P2P databases	en
dc.subject.other	Relational databases	en
dc.subject.other	Resource discovery	en
dc.subject.other	Schemas	en
dc.subject.other	Semantic clustering	en
dc.subject.other	Semantic grouping	en
dc.subject.other	Semantic matching	en
dc.subject.other	Semantic query processing	en
dc.subject.other	Semantic relations	en
dc.subject.other	Social network structures	en
dc.subject.other	Structured data	en
dc.subject.other	Information theory	en
dc.title	A framework for semantic grouping in P2P databases	en
heal.type	journalArticle	en
heal.identifier.primary	10.1016/j.is.2008.01.011	en
heal.identifier.secondary	http://dx.doi.org/10.1016/j.is.2008.01.011	en
heal.language	English	en
heal.publicationDate	2008	en
heal.abstract	Sharing of structured data in decentralized environments is a challenging problem, especially in the absence of a global schema. Social network structures map network links to semantic relations between participants in order to assist in efficient resource discovery and information exchange. In this work, we propose a scheme that automates the process of creating schema synopses from semantic clusters of peers which own autonomous relational databases. The resulting mediated schemas can be used as global interfaces for relevant queries. Active nodes are able to initiate the group schema creation process, which produces a mediated schema representative of nodes with similar semantics. Group schemas are then propagated in the overlay and used as a single interface for relevant queries. This increases both the quality and the quantity of the retrieved answers and allows for fast discovery of interest groups by joining peers. As our experimental evaluations show, this method increases both the quality and the quantity of the retrieved answers and allows for faster discovery of semantic groups by joining peers. (C) 2008 Elsevier B.V. All rights reserved.	en
heal.publisher	PERGAMON-ELSEVIER SCIENCE LTD	en
heal.journalName	Information Systems	en
dc.identifier.doi	10.1016/j.is.2008.01.011	en
dc.identifier.isi	ISI:000259654800003	en
dc.identifier.volume	33	en
dc.identifier.issue	7-8	en
dc.identifier.spage	611	en
dc.identifier.epage	636	en