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» Aggregation Transformation of XML Schemas to Object-Relation...
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PODS
2004
ACM
86views Database» more  PODS 2004»
14 years 7 months ago
Frontiers of Tractability for Typechecking Simple XML Transformations
Typechecking consists of statically verifying whether the output of an XML transformation is always conform to an output type for documents satisfying a given input type. We focus...
Wim Martens, Frank Neven
SIGMOD
2009
ACM
158views Database» more  SIGMOD 2009»
14 years 7 months ago
Simplifying XML schema: effortless handling of nondeterministic regular expressions
Whether beloved or despised, XML Schema is momentarily the only industrially accepted schema language for XML and is unlikely to become obsolete any time soon. Nevertheless, many ...
Geert Jan Bex, Wouter Gelade, Wim Martens, Frank N...
DOLAP
2003
ACM
14 years 22 days ago
Exploiting hierarchical clustering in evaluating multidimensional aggregation queries
Multidimensional aggregation queries constitute the single most important class of queries for data warehousing applications and decision support systems. The bottleneck in the ev...
Dimitri Theodoratos
ADC
2008
Springer
80views Database» more  ADC 2008»
14 years 1 months ago
An XML Document Transformation Algorithm Inferred from an Edit Script between DTDs
Finding an appropriate data transformation between two schemas has been an important problem. In this paper, assuming that an edit script between original and updated DTDs is avai...
Nobutaka Suzuki, Yuji Fukushima
ADBIS
2005
Springer
78views Database» more  ADBIS 2005»
14 years 1 months ago
Schema-based Query Optimization for XQuery Queries
XQuery is widely used for querying XML documents. Within this paper, we examine optimization rules for XQuery queries that exploit type information of the input XML document given ...
Sven Groppe, Stefan Böttcher