7576 search results - page 203 / 1516 » On Querying Ontologies and Databases |
190
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ASWC
2009
Springer
15 years 10 months ago
2009
Springer
Many tasks within semantic web service discovery can be formalized as reasoning problems related to the partial ordering of subactivity occurrences in a complex activity. We show h...
266
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ICDT
2009
ACM
16 years 7 months ago
2009
ACM
We study the problem of incrementally maintaining an XPath query on an XML database under updates. The updates we consider are node insertion, node deletion, and node relabeling. ...
266
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SIGMOD
2008
ACM
16 years 6 months ago
2008
ACM
Reverse skyline queries over uncertain databases have many important applications such as sensor data monitoring and business planning. Due to the existence of uncertainty in many...
185
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ICDE
2008
IEEE
16 years 1 months ago
2008
IEEE
— The database research community has recently recognized the usefulness of skyline query. As an extension of existing database operator, the skyline query is valuable for multi-...
333
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ICDE
2009
IEEE
16 years 8 months ago
2009
IEEE
This work addresses a novel spatial keyword query called the m-closest keywords (mCK) query. Given a database of spatial objects, each tuple is associated with some descriptive inf...