An Approach to Define Flexible Structural Constraints in XQuery

  • Emanuele Panzeri
  • Gabriella Pasi
Conference paper

DOI: 10.1007/978-3-642-35236-2_31

Part of the Lecture Notes in Computer Science book series (LNCS, volume 7669)
Cite this paper as:
Panzeri E., Pasi G. (2012) An Approach to Define Flexible Structural Constraints in XQuery. In: Huang R., Ghorbani A.A., Pasi G., Yamaguchi T., Yen N.Y., Jin B. (eds) Active Media Technology. AMT 2012. Lecture Notes in Computer Science, vol 7669. Springer, Berlin, Heidelberg

Abstract

This paper presents a formal definition of an extension of the XQuery Full-Text language: the proposed extension consists in adding two new flexible axes, named below and near, which express structural constraints that can be specified by the user. Both constraints are evaluated in an approximate way with respect to a considered path, and their evaluation produces a path relevance score for each retrieved element. The formal syntax and the semantics of the two new axis are presented and discussed.

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Copyright information

© Springer-Verlag Berlin Heidelberg 2012

Authors and Affiliations

  • Emanuele Panzeri
    • 1
  • Gabriella Pasi
    • 1
  1. 1.University of Milano-BicoccaMilanoItaly

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