Now showing items 1-2 of 2
Expressive approximations in DL-Lite ontologies
Ontology based data access (OBDA) is concerned with providing access to typically very large data sources through a mediating conceptual layer that allows one to improve answers to user queries by taking into account domain ...
Node selection query languages for trees
(AAAI Publications, 2010)
The study of node-selection query languages for (finite) trees has been a major topic in the recent research on query lan- guages for Web documents. On one hand, there has been an extensive study of XPath and its various ...