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VLDB
2005
ACM
113views Database» more  VLDB 2005»
16 years 7 months ago
Mediators over taxonomy-based information sources
Abstract. We propose a mediator model for providing integrated and unified access to multiple taxonomy-based sources. Each source comprises a taxonomy and a database that indexes o...
Yannis Tzitzikas, Nicolas Spyratos, Panos Constant...
ICFP
2008
ACM
16 years 7 months ago
Pattern minimization problems over recursive data types
In the context of program verification in an interactive theorem prover, we study the problem of transforming function definitions with ML-style (possibly overlapping) pattern mat...
Alexander Krauss
FQAS
2009
Springer
202views Database» more  FQAS 2009»
16 years 1 months ago
Controlled Aggregate Tree Shaped Questions over Ontologies
Abstract. Controlled languages (CLs) are ambiguity-free subsets of natural languages such as English offering a good trade-off between the formal rigor of ontology and query langua...
Camilo Thorne, Diego Calvanese
HT
2009
ACM
16 years 1 months ago
ArsMeteo: artworks and tags floating over the planet art
In this paper we present ArsMeteo◦ , a Web 2.0 portal for collecting and sharing digital (or digitalized) artworks, like videos, pictures, poems and music. The ArsMeteo◦ conte...
Edoardo Acotto, Matteo Baldoni, Cristina Baroglio,...
IDEAS
2007
IEEE
146views Database» more  IDEAS 2007»
16 years 1 months ago
Approximate Structural Matching over Ordered XML Documents
There is an increasing need for an XML query engine that not only searches for exact matches to a query but also returns “query-like” structures. We have designed and develope...
Nitin Agarwal, Magdiel Galan Oliveras, Yi Chen