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» Database Query Languages and Functional Logic Programming
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VLDB
1987
ACM
108views Database» more  VLDB 1987»
15 years 6 months ago
Translating and Optimizing SQL Queries Having Aggregates
is at least ae powerful as SQL. Two well known relational query languages that have a sound theoretical foundation are relational algebra and relational calculus. As SQL is more cl...
Günter von Bültzingsloewen
AGP
1994
IEEE
15 years 6 months ago
A Compositional Semantics for Conditional Term Rewriting Systems
This paper considers compositions of conditional term rewriting systems as a basis for a modular approach to the design and analysis of equational logic programs. In this context,...
María Alpuente, Moreno Falaschi, Marí...
LREC
2008
114views Education» more  LREC 2008»
15 years 3 months ago
UFRA: a UIMA-based Approach to Federated Language Resource Architecture
In this paper we address the issue of developing an interoperable infrastructure for language resources and technologies. In our approach, called UFRA, we extend the Federate Data...
Riccardo Del Gratta, Roberto Bartolini, Tommaso Ca...
ICFP
2009
ACM
16 years 3 months ago
Identifying query incompatibilities with evolving XML schemas
During the life cycle of an XML application, both schemas and queries may change from one version to another. Schema evolutions may affect query results and potentially the validi...
Nabil Layaïda, Pierre Genevès, Vincent...
CADE
2009
Springer
16 years 3 months ago
Complexity of Fractran and Productivity
Abstract. In functional programming languages the use of infinite structures is common practice. For total correctness of programs dealing with infinite structures one must guarant...
Clemens Grabmayer, Dimitri Hendriks, Jörg End...