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» Linear Constraint Query Languages: Expressive Power and Comp...
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CIKM
1993
Springer
13 years 11 months ago
Collection Oriented Match
match algorithms that can efficiently handleAbstract complex tests in the presence of large amounts of data. Match algorithms that are capable of handling large amounts of On the o...
Anurag Acharya, Milind Tambe
PEPM
2010
ACM
14 years 4 months ago
Optimizing relational algebra operations using generic equivalence discriminators and lazy products
We show how to efficiently evaluate generic map-filter-product queries, generalizations of select-project-join (SPJ) queries in relational algebra, based on a combination of two...
Fritz Henglein
LACL
1998
Springer
13 years 11 months ago
Strict Compositionality and Literal Movement Grammars
Abstract. The principle of compositionality, as standardly defined, regards grammars as compositional that are not compositional in an intuitive sense of the word. There is, for ex...
Marcus Kracht
PODS
2008
ACM
165views Database» more  PODS 2008»
14 years 7 months ago
Data exchange and schema mappings in open and closed worlds
In the study of data exchange one usually assumes an openworld semantics, making it possible to extend instances of target schemas. An alternative closed-world semantics only move...
Leonid Libkin, Cristina Sirangelo
WWW
2006
ACM
14 years 8 months ago
Relaxed: on the way towards true validation of compound documents
To maintain interoperability in the Web environment it is necessary to comply with Web standards. Current specifications of HTML and XHTML languages define conformance conditions ...
Jirka Kosek, Petr Nálevka