53 search results - page 11 / 11 » Leveraging the Expressivity of Grounded Conjunctive Query La... |
DILS
2009
Springer
14 years 2 months ago
2009
Springer
Abstract. Data integration plays a major role in modern Life Sciences research primarily because required resources are geographically distributed across continents and experts dep...
ICDT
2010
ACM
14 years 8 months ago
2010
ACM
It is known that the composition of schema mappings, each specified by source-to-target tgds (st-tgds), can be specified by a secondorder tgd (SO tgd). We consider the question of...
WISE
2005
Springer
14 years 4 months ago
2005
Springer
Abstract. Approximation has been identified as a potential way of reducing the complexity of logical reasoning. Here we explore approximation for speeding up instance retrieval in...