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Authors: Nicolas Travers 1 ; Tuyêt-Trâm Dang-Ngoc 2 and Tianxiao Liu 2

Affiliations: 1 PRiSM Laboratory, University of Versailles, France ; 2 ETIS Laboratory, University of Cergy-Pontoise, France

Keyword(s): XQuery evaluation, Extensible Optimization.

Related Ontology Subjects/Areas/Topics: Internet Technology ; System Integration ; Web Information Systems and Technologies ; XML and Data Management

Abstract: This paper presents an efficient evaluation of XQuery in a heterogeneous distributed system. XQuery(W3C, 2005) is a rich and so a complex language. Its syntax allows us to express a large scale of queries over XML documents. We have extended (Chen et al., 2003) proposal to rewrite XQuery expressions in ”canonical XQuery” in order to support the full XQuery specification. The XQuery expressiveness makes difficulties to obtain an exclusive internal representation within a system. Models based on Tree Patterns have been proposed, and we have extended the tree pattern model to a model called TGV that (a) integrates the whole functionalities of XQuery (b) uses an intuitive representation that provides a global visualization of the request in a mediation context and (c) provides a support for optimization and for cost information. Our paper is based on the XLive mediation system. XLive integrates sources in a uniform view. It is a running research vehicle designed at PRiSM Laboratory for a ssessing the integration system at every stage of the process starting from sources extraction to the user interface and is already used in several projects. (More)

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Paper citation in several formats:
Travers, N.; Dang-Ngoc, T. and Liu, T. (2007). XLIVE: INTEGRATING SOURCES WITH XQUERY - An Efficient XQuery Evaluation Prototype with TGV. In Proceedings of the Third International Conference on Web Information Systems and Technologies - Volume 2: WEBIST; ISBN 978-972-8865-77-1; ISSN 2184-3252, SciTePress, pages 378-381. DOI: 10.5220/0001275203780381

@conference{webist07,
author={Nicolas Travers. and Tuyêt{-}Trâm Dang{-}Ngoc. and Tianxiao Liu.},
title={XLIVE: INTEGRATING SOURCES WITH XQUERY - An Efficient XQuery Evaluation Prototype with TGV},
booktitle={Proceedings of the Third International Conference on Web Information Systems and Technologies - Volume 2: WEBIST},
year={2007},
pages={378-381},
publisher={SciTePress},
organization={INSTICC},
doi={10.5220/0001275203780381},
isbn={978-972-8865-77-1},
issn={2184-3252},
}

TY - CONF

JO - Proceedings of the Third International Conference on Web Information Systems and Technologies - Volume 2: WEBIST
TI - XLIVE: INTEGRATING SOURCES WITH XQUERY - An Efficient XQuery Evaluation Prototype with TGV
SN - 978-972-8865-77-1
IS - 2184-3252
AU - Travers, N.
AU - Dang-Ngoc, T.
AU - Liu, T.
PY - 2007
SP - 378
EP - 381
DO - 10.5220/0001275203780381
PB - SciTePress

- Science and Technology Publications, Lda.
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