2043 search results - page 20 / 409 » The Limits of Querying Ontologies |
130
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AAAI
2007
15 years 3 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...
125
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ER
2008
Springer
15 years 3 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 ...
114
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COLT
2004
Springer
15 years 6 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...
110
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CORR
2012
Springer
13 years 9 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...
192
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ICDE
2007
IEEE
16 years 2 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...