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» Conditional Term Rewriting as a Deductive Database Language
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CIKM
2008
Springer
13 years 10 months ago
Rewriting of visibly pushdown languages for xml data integration
In this paper, we focus on XML data integration by studying rewritings of XML target schemas in terms of source schemas. Rewriting is very important in data integration systems wh...
Alex Thomo, Srinivasan Venkatesh
IDEAS
2009
IEEE
142views Database» more  IDEAS 2009»
14 years 3 months ago
A magic approach to optimizing incremental relational expressions
This paper is concerned with a transformation-based approach to update propagation in an extended version of Codd’s relational algebra which allows for defining derived relatio...
Andreas Behrend
JIIS
2006
119views more  JIIS 2006»
13 years 8 months ago
Answering constraint-based mining queries on itemsets using previous materialized results
Abstract In recent years, researchers have begun to study inductive databases, a new generation of databases for leveraging decision support applications. In this context, the user...
Roberto Esposito, Rosa Meo, Marco Botta
POPL
2007
ACM
14 years 8 months ago
Semantics of static pointcuts in aspectJ
In aspect-oriented programming, one can intercept events by writing patterns called pointcuts. The pointcut language of the most popular aspect-oriented programming language, Aspe...
Pavel Avgustinov, Elnar Hajiyev, Neil Ongkingco, O...
SIGMOD
2004
ACM
160views Database» more  SIGMOD 2004»
14 years 8 months ago
Extending Query Rewriting Techniques for Fine-Grained Access Control
Current day database applications, with large numbers of users, require fine-grained access control mechanisms, at the level of individual tuples, not just entire relations/views,...
Shariq Rizvi, Alberto O. Mendelzon, S. Sudarshan, ...