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VLDB
2005
ACM
103views Database» more  VLDB 2005»
14 years 1 months ago
Semantic Query Optimization for XQuery over XML Streams
We study XML stream-specific schema-based optimization. We assume a widely-adopted automata-based execution model for XQuery evaluation. Criteria are established regarding what s...
Hong Su, Elke A. Rundensteiner, Murali Mani
COOPIS
2004
IEEE
13 years 11 months ago
Analysis, Transformation, and Improvements of ebXML Choreographies Based on Workflow Patterns
In ebXML the choreography of a business process should be modeled by UMM (UN/CEFACT Modeling Methodology) and is finally expressed in BPSS (Business Process Specification Schema). ...
Ja-Hee Kim, Christian Huemer
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
EDBT
2010
ACM
208views Database» more  EDBT 2010»
14 years 2 months ago
Stream schema: providing and exploiting static metadata for data stream processing
Schemas, and more generally metadata specifying structural and semantic constraints, are invaluable in data management. They facilitate conceptual design and enable checking of da...
Peter M. Fischer, Kyumars Sheykh Esmaili, Ren&eacu...
DEXA
2009
Springer
127views Database» more  DEXA 2009»
14 years 2 months ago
The Real Performance Drivers behind XML Lock Protocols
Abstract. Fine-grained lock protocols should allow for highly concurrent transaction processing on XML document trees, which is addressed by the taDOM lock protocol family enabling...
Sebastian Bächle, Theo Härder