A Cost-based Join Selection for XML Twig Content-based Queries
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61989100%3A27240%2F08%3A00019955" target="_blank" >RIV/61989100:27240/08:00019955 - isvavai.cz</a>
Result on the web
<a href="http://dl.acm.org/citation.cfm?id=1416696" target="_blank" >http://dl.acm.org/citation.cfm?id=1416696</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1145/1416691.1416696" target="_blank" >10.1145/1416691.1416696</a>
Alternative languages
Result language
angličtina
Original language name
A Cost-based Join Selection for XML Twig Content-based Queries
Original language description
XML (Extensible Mark-up Language) has been embraced as a new approach to data modeling. Nowadays, more and more information is formated as semi-structured data, e.g., articles in a digital library, documents on the web, and so on. Implementation of an efficient system enabling storage and querying of XML documents requires development of new techniques. Many different techniques of XML indexing have been proposed during recent years. If we consider some classes of indexing methods, we distinguish two kinds of joins for processing twig queries. Although authors propose improvements of their joins, there has not yet been a discussion about the advantages of applying various join operations. In this article, we propose a join selection based on the cost of a join. By choosing a more appropriate join operation, twig query processing efficiency is significantly improved.
Czech name
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Czech description
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Classification
Type
D - Article in proceedings
CEP classification
IN - Informatics
OECD FORD branch
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Result continuities
Project
Result was created during the realization of more than one project. More information in the Projects tab.
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)
Others
Publication year
2008
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Article name in the collection
DataX 08 Proceedings of the 2008 EDBT workshop on Database technologies for handling XML information on the web
ISBN
978-1-59593-966-1
ISSN
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e-ISSN
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Number of pages
8
Pages from-to
13-20
Publisher name
ACM
Place of publication
Seattle, WA
Event location
Nantes
Event date
Mar 25, 2008
Type of event by nationality
WRD - Celosvětová akce
UT code for WoS article
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