9683 search results - page 393 / 1937 » Query performance prediction |
148
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EDBTW
2006
Springer
15 years 8 months ago
2006
Springer
Querying live media streams is a challenging problem that becomes an essential requirement in a growing number of applications. We address the problem of evaluating continuous quer...
185
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EDBT
2009
ACM
15 years 8 months ago
2009
ACM
Range queries for querying the current and future positions of the moving objects have received growing interests in the research community. Existing methods, however, assume that...
140
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EVOW
2008
Springer
15 years 6 months ago
2008
Springer
Nowadays, searching information in the web or in any kind of document collection has become one of the most frequent activities. However, user queries can be formulated in a way th...
158
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AMW
2010
15 years 6 months ago
2010
In this work we present in-network techniques to improve the efficiency of spatial aggregate queries. Such queries are very common in a sensornet setting, demanding more targeted t...
153
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BDA
2007
15 years 6 months ago
2007
Query personalization was introduced as an advanced mechanism to allow the reformulation of database queries and adapt them to the user's domain of interest and preferences. ...