Now showing items 1-4 of 4

    • Algebraic Translation and Optimization of (Nested) XPath Expressions 

      Brantner, M; Kanne, CC; Helmer, S; Moerkotte, G (IEEE, 2006)
      The XPath language incorporates powerful primitives for formulating queries containing nested subexpressions which are existentially or universally quantified. However, even the best published approaches for evaluating ...
    • Anatomy of a native XML base management system 

      Fiebig, T; Helmer, S; Kanne, CC; Moerkotte, G; Neumann, J; Schiele, R; Westmann, T (Springer Verlag (Germany), 2002)
      Several alternatives to manage large XML document collections exist, ranging from file systems over relational or other database systems to specifically tailored XML base management systems. In this paper we give a tour ...
    • Evaluating lock-based protocols for cooperation on XML documents 

      Helmer, S; Kanne, CC; Moerkotte, G (Association for Computing Machinery; 1999, 2004)
      We discuss four different core protocols for synchronizing access to and modifications of XML document collections. These core protocols synchronize structure traversals and modifications. They are meant to be integrated ...
    • XML-Datenbanken und ihre Anwendung 

      Helmer, S; Kanne, CC; Moerkotte, G (2003)
      Due to its fast proliferation,the amount of XML data is steadily increasing and XML-based applications become more and more complex. This requires effective and efficient methods to manage large amounts of persistent XML. ...