2043 search results - page 20 / 409 » The Limits of Querying Ontologies |
AAAI
2007
13 years 11 months ago
2007
Efficient query answering over ontologies is one of the most useful and important services to support Semantic Web applications. Approximation has been identified as a potential...
ER
2008
Springer
13 years 10 months ago
2008
Springer
Access limitations may occur when querying data sources over the web or heterogeneous data sources presented as relational tables: this happens, for instance, in Data Exchange and ...
COLT
2004
Springer
14 years 2 months ago
2004
Springer
Different formal learning models address different aspects of human learning. Below we compare Gold-style learning—interpreting learning as a limiting process in which the lear...
CORR
2012
Springer
12 years 4 months ago
2012
Springer
We consider the problem of recovering items matching a partially specified pattern in multidimensional trees (quad trees and k-d trees). We assume the classical model where the d...
ICDE
2007
IEEE
14 years 10 months ago
2007
IEEE
Traditional approaches for efficiently processing historical queries, where a history is a multidimensional timeseries, employ a two step filter-and-refine scheme. In the filter s...