2067 search results - page 39 / 414 » Modeling and exploiting query interactions in database syste... |
152
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SSDBM
2008
IEEE
15 years 10 months ago
2008
IEEE
Abstract. Existing approaches to the management of streaming positional updates generally assume that all active user requests have equal importance, ignoring the possibility of an...
160
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CORR
2002
Springer
15 years 3 months ago
2002
Springer
Recommender systems learn about user preferences over time, automatically finding things of similar interest. This reduces the burden of creating explicit queries. Recommender sys...
149
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ICDE
2006
IEEE
15 years 10 months ago
2006
IEEE
The window query model is widely used in data stream management systems where the focus of a continuous query is limited to a set of the most recent tuples. In this dissertation, ...
126
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BTW
2005
Springer
15 years 9 months ago
2005
Springer
: Optimizers in modern DBMSs utilize a cost model to choose an efficient query execution plan (QEP) among all possible ones for a given query. The accuracy of the cost estimates de...
138
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SAC
2010
ACM
15 years 11 months ago
2010
ACM
In GIS and spatial databases, cardinal directions are frequently used as selection and join criteria in query languages. However, most cardinal direction models are only able to h...