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PODS
2006
ACM
88views Database» more  PODS 2006»
16 years 6 months ago
Structural characterizations of the semantics of XPath as navigation tool on a document
Given a document D in the form of an unordered labeled tree, we study the expressibility on D of various fragments of XPath, the core navigational language on XML documents. We gi...
Marc Gyssens, Jan Paredaens, Dirk Van Gucht, Georg...
DBPL
2005
Springer
135views Database» more  DBPL 2005»
16 years 6 days ago
Type-Based Optimization for Regular Patterns
Pattern matching mechanisms based on regular expressions feature in a number of recent languages for processing XML. The flexibility of these mechanisms demands novel approaches ...
Michael Y. Levin, Benjamin C. Pierce
DEXA
2004
Springer
180views Database» more  DEXA 2004»
16 years 2 days ago
Algebra-to-SQL Query Translation for Spatio-Temporal Databases
Although many spatio-temporal conceptual models has been proposed in the last years, users must express their queries on the underlying physical data structures. In the context of ...
Mohammed Minout, Esteban Zimányi
MOZ
2004
Springer
16 years 20 hour ago
Strasheela: Design and Usage of a Music Composition Environment Based on the Oz Programming Model
Strasheela provides a means for the composer to create a symbolic score by formally describing it in a rule-based way. The environment defines a rich music representation for comp...
Torsten Anders, Christina Anagnostopoulou, Michael...
ICDT
2003
ACM
139views Database» more  ICDT 2003»
15 years 12 months ago
New Rewritings and Optimizations for Regular Path Queries
All the languages for querying semistructured data and the web use as an integral part regular expressions. Based on practical observations, finding the paths that satisfy those r...
Gösta Grahne, Alex Thomo