Searching Multi-hierarchical XML Documents: The Case of Fragmentation

  • Alex Dekhtyar
  • Ionut E. Iacob
  • Srikanth Methuku
Conference paper
Part of the Lecture Notes in Computer Science book series (LNCS, volume 3588)

Abstract

To properly encode properties of textual documents using XML, multiple markup hierarchies must be used, often leading to conflicting markup in encodings. Text Encoding Initiative (TEI) Guidelines [1] recognize this problem and suggest a number of ways to incorporate multiple hierarchies in a single well-formed XML document. In this paper, we present a framework for processing XPath queries over multi-hierarchical XML documents represented using fragmentation, one of the TEI-suggested techniques. We define the semantics of XPath over DOM trees of fragmented XML, extend the path expression language to cover overlap in markup, and describe FragXPath, our implementation of the proposed XPath semantics over fragmented markup.

Preview

Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.

References

  1. 1.
    Sperberg-McQueen, C.M., Burnard, L. (eds.): Guidelines for Text Encoding and Interchange, P4 (2001) The TEI Consortium, http://www.tei-c.org/P4X/index.html
  2. 2.
    Renear, A., Mylonas, E., Durand, D.: Refining our notion of what text really is: The prob lem of overlapping hierarchies. In: Ide, N., Hockey, S. (eds.) Research in Humanities Computing (1993)Google Scholar
  3. 3.
    Boethius, A.M.S.: Consolation of philosophy (Alfred The Great (translator), British Library MS Cotton Otho A. vi) (Manuscript, folio 36v)Google Scholar
  4. 4.
    Champion, M., Byrne, S., Nicol, G., Wood, L. (eds.): Document Object Model (DOM) Level 1 Specification (1998) World Wide Web Consortium Recommendation, REC-DOM-Level-1-19981001, http://www.w3.org/TR/REC-DOM-Level-1/
  5. 5.
    Bray, T., Paoli, J., Sperberg-McQueen, C.M., Maler, E., Yergeau, F., Cowan, J. (eds.): Extensible Markup Language (XML) 1.1 (2004) W3C Recommendation 2004 (February 2004), http://www.w3.org/TR/2004/REC-xml11-20040204
  6. 6.
    Clark, J., DeRose, S.: XML Path Language (XPath), Version 1.0 (1999) W3C, REC-xpath-19991116, http://www.w3.org/TR/xpath
  7. 7.
    Dekhtyar, A., Iacob, I.E., Methuku, S.: Searching Multi-Hierarchical XML Documents: the Case of Fragmentation. Technical Report TR 439-05, University of Kentucky, Department of Computer Science (2005), http://www.cs.uky.edu/~dekhtyar/publications/TR439-05.ps
  8. 8.
    Gottlob, G., Koch, C., Pichler, R.: XPath query evaluation: Improving time and space eficiency. In: Proceedings of the ICDE, Bangalore, India, pp. 379–390 (2003)Google Scholar
  9. 9.
    Gottlob, G., Koch, C., Pichler, R.: Efficient algorithms for processing XPath queries. In: Proc. of VLDB, Hong Kong (2002)Google Scholar
  10. 10.
    Dekhtyar, A., Iacob, I.E.: A Framework for Management of Concurrent XML Markup. Data and Knowledge Engineering 52, 185–208 (2005)CrossRefGoogle Scholar
  11. 11.
    Jagadish, H.V., Lakshmanan, L.V.S., Scannapieco, M., Srivastava, D., Wiwatwattana, N.: Colorful XML: One Hierarchy Isn’t Enough. In: Proc., ACM SIGMOD, pp. 251–262 (2004)Google Scholar

Copyright information

© Springer-Verlag Berlin Heidelberg 2005

Authors and Affiliations

  • Alex Dekhtyar
    • 1
  • Ionut E. Iacob
    • 1
  • Srikanth Methuku
    • 1
  1. 1.Department of Computer ScienceUniversity of Kentucky 

Personalised recommendations