Advances in Databases and Information Systems: 10th East by Serge Abiteboul, Neoklis Polyzotis (auth.), Yannis PDF

By Serge Abiteboul, Neoklis Polyzotis (auth.), Yannis Manolopoulos, Jaroslav Pokorný, Timos K. Sellis (eds.)

ISBN-10: 3540378995

ISBN-13: 9783540378990

This booklet constitutes the refereed complaints of the tenth East ecu convention on Advances in Databases and data platforms, ADBIS 2006, held in Thessaloniki, Greece, in September 2006.

The 29 top of the range papers have been chosen in a rigorous reviewing technique out of 126 submissions. The papers deal with a variety of sizzling learn concerns and are geared up in topical sections on: XML databases and semantic internet, materialized perspectives, database modelling, net details platforms and middleware, question processing and indexing, info mining and clustering, and modelling and layout issues.

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Extra resources for Advances in Databases and Information Systems: 10th East European Conference, ADBIS 2006, Thessaloniki, Greece, September 3-7, 2006. Proceedings

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E. these nodes are not logged into any schema path and will be filtered when XP is evaluated. Acording to the XPath language, the result of an XPath query does not contain any duplicates. Therefore, the total mapped XPath expressions using either M or Mr return the same node set for all possible XML documents. 2 Optimizing Mapped (Regular) XPath Expressions The mapped XPath query can be furthered optimized by eliminating redundant location steps, which are mainly the location steps containing the reverse axis parent.

S. Amer-Uahis, S. S. Laksmanan, D. Srivastava: Minimization of tree pattern queries. In SIGMOD 2001. 2. M. Benedikt, W. Fan, F. Geerts: XPath Satisfiability in the presence of DTDs. In PODS 2005. 3. A. Brown, M. Fuchs, J. Robie, P. Wadler: MSL: A model for W3C XML Schema. In Proceedings International WWW Conference, Hong-Kong, 2001. 4. Y. Chan, W. Fan, Y. Zeng: Taming XPath Queries by Minimizing Wildcard Steps. In VLDB 2004. 5. W. Fan, C. Chan, M. Garofalakis: Secure XML querying with security views.

If we use the function Mr[], we get a regular XPath expression with loop patterns using the Kleene star *, which is not a standard XPath operator, and if we use the function M[], we get a standard XPath expression, which conforms to the XPath specification ([21], [22]), without loop patterns. Since loop patterns are not supported by the XPath language, instead of computing loop patterns, M[] computes a desc or ances axis from a path record containing loop schema paths.

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Advances in Databases and Information Systems: 10th East European Conference, ADBIS 2006, Thessaloniki, Greece, September 3-7, 2006. Proceedings by Serge Abiteboul, Neoklis Polyzotis (auth.), Yannis Manolopoulos, Jaroslav Pokorný, Timos K. Sellis (eds.)


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