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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

  • Czech description

Classification

  • Type

    D - Article in proceedings

  • CEP classification

    IN - Informatics

  • OECD FORD branch

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

  • e-ISSN

  • 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