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XML Query Evaluation Using a –calculus Based Framework Pavel Loupal & Karel Richta, FEL ČVUT Praha

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Presentation on theme: "XML Query Evaluation Using a –calculus Based Framework Pavel Loupal & Karel Richta, FEL ČVUT Praha"— Presentation transcript:

1 XML Query Evaluation Using a –calculus Based Framework Pavel Loupal & Karel Richta, FEL ČVUT Praha SOFSEM 2009, Student Research Forum

2 The XML- Framework XML- = data model for XML + a query language Data model & type system – model an XML document with a set of functions – general enough to describe non-tree data as well The query language – based on the simply typed -calculus – easily extensible, specified with detailed semantics

3 XML- for XQuery Evaluation

4 The XML- Framework - Main Results Another formalism for modeling/querying XML Can describe the formal semantics of XPath/XQuery Two prototype (Java) applications: – XPath 1.0 Processor – ExDB – a native XML DBMS Expected project finalization: June 2009


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