Incremental Validation of XML Documents

  • Yannis Papakonstantinou
  • Victor Vianu
Conference paper
Part of the Lecture Notes in Computer Science book series (LNCS, volume 2572)

Abstract

We investigate the incremental validation of XML documents with respect to DTDs and XML Schemas, under updates consisting of element tag renamings, insertions and deletions. DTDs are modeled as extended context-free grammars and XML Schemas are abstracted as “specialized DTDs”, allowing to decouple element types from element tags. For DTDs, we exhibit an O(m log n) incremental validation algorithm using an auxiliary structure of size O(n), where n is the size of the document and m the number of updates. For specialized DTDs, we provide an O(m log2 n) incremental algorithm, again using an auxiliary structure of size O(n). This is a significant improvement over brute-force re-validation from scratch.

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Copyright information

© Springer-Verlag Berlin Heidelberg 2003

Authors and Affiliations

  • Yannis Papakonstantinou
    • 1
  • Victor Vianu
    • 1
  1. 1.Computer Science and EngineeringUniversity of California at San DiegoUSA

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