412 search results - page 46 / 83 » Aggregate queries over ontologies |
ICDE
2009
IEEE
14 years 12 months ago
2009
IEEE
XML streams, such as RSS feeds or complex event streams, are becoming increasingly pervasive as they provide the foundation for a wide range of emerging applications. An important...
PERCOM
2005
ACM
14 years 9 months ago
2005
ACM
Topographic querying is the process of extracting data from a sensor network for understanding the graphic delineation of features of interest in a terrain. Query processing techn...
AI
2010
Springer
13 years 10 months ago
2010
Springer
We develop a formal framework for comparing different versions of ontologies, and apply it to ontologies formulated in terms of DL-Lite, a family of `lightweight' description...
SEMWEB
2009
Springer
14 years 4 months ago
2009
Springer
Traditional object-oriented programming languages can be difficult to use when working with ontologies, leading to the creation of domain-specific languages designed specifically...
DATAMINE
2002
13 years 10 months ago
2002
Cubegrades are generalization of association rules which represent how a set of measures (aggregates) is affected by modifying a cube through specialization (rolldown), generaliza...