2514 search results - page 217 / 503 » On the Computation of Approximations of Database Queries |
169
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CIKM
2010
Springer
15 years 5 months ago
2010
Springer
Most database systems allow query processing over attributes that are derived at query runtime (e.g., user-defined functions and remote data calls to web services), making them e...
176
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SAC
2011
ACM
14 years 9 months ago
2011
ACM
Semantic caching augments cached data with a semantic description of the data. These semantic descriptions can be used to improve execution time for similar queries by retrieving ...
180
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SIGMOD
1996
ACM
15 years 10 months ago
1996
ACM
Object-Relational and Object-Oriented DBMSs allow users to invoke time-consuming ("expensive") methods in their queries. When queries containing these expensive methods a...
188
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ICS
2005
Tsinghua U.
16 years 4 days ago
2005
Tsinghua U.
We consider a cluster architecture in which dynamic content is generated by a database back-end and a collection of Web and application server front-ends. We study the effect of t...
171
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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...