3969 search results - page 437 / 794 » Query Processing Using Ontologies |
294
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ICDE
2005
IEEE
16 years 7 months ago
2005
IEEE
Data warehousing and on-line analytical processing (OLAP) are essential for decision support applications. Common OLAP operations include for example drill down, roll up, pivot an...
287
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GIS
2009
ACM
16 years 7 months ago
2009
ACM
The k-anonymity technique is widely used to provide location privacy protection for accessing location-based services (LBS), i.e., the exact location of a query initiator is cloak...
133
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CIKM
2007
Springer
16 years 15 days ago
2007
Springer
The term frequency normalisation parameter sensitivity is an important issue in the probabilistic model for Information Retrieval. A high parameter sensitivity indicates that a sl...
178
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SIGMOD
2000
ACM
15 years 10 months ago
2000
ACM
We present MOCHA, a new self-extensible database middleware system designed to interconnect distributed data sources. MOCHA is designed to scale to large environments and is based...
163
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MOBIDE
2010
ACM
15 years 6 months ago
2010
ACM
Traditional location-based services recommend nearest objects to the user by considering their spatial proximity. However, an object not only has its distance but also has its dir...