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ICDT
2012
ACM
226views Database» more  ICDT 2012»
13 years 5 months ago
Factorised representations of query results: size bounds and readability
We introduce a representation system for relational data based on algebraic factorisation using distributivity of product over union and commutativity of product and union. We giv...
Dan Olteanu, Jakub Zavodny
ICDE
2007
IEEE
126views Database» more  ICDE 2007»
16 years 4 months ago
QPIAD: Query Processing over Incomplete Autonomous Databases
Incompleteness due to missing attribute values (aka "null values") is very common in autonomous web databases, on which user accesses are usually supported through media...
Hemal Khatri, Jianchun Fan, Yi Chen, Subbarao Kamb...
ICDE
2008
IEEE
118views Database» more  ICDE 2008»
16 years 4 months ago
XML processing in DHT networks
We study the scalable management of XML data in P2P networks based on distributed hash tables (DHTs). We identify performance limitations in this context, and propose an array of t...
Serge Abiteboul, Ioana Manolescu, Neoklis Polyzoti...
EDBT
2010
ACM
200views Database» more  EDBT 2010»
15 years 10 months ago
Rewrite techniques for performance optimization of schema matching processes
A recurring manual task in data integration, ontology alignment or model management is finding mappings between complex meta data structures. In order to reduce the manual effor...
Eric Peukert, Henrike Berthold, Erhard Rahm
162
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WEBDB
2010
Springer
208views Database» more  WEBDB 2010»
15 years 1 months ago
XML-Based RDF Data Management for Efficient Query Processing
The Semantic Web, which represents a web of knowledge, offers new opportunities to search for knowledge and information. To harvest such search power requires robust and scalable ...
Mo Zhou, Yuqing Wu