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VLDB
2005
ACM
113views Database» more  VLDB 2005»
16 years 6 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 6 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 28 days 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 22 days 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