185 search results - page 20 / 37 » Precise complexity analysis for efficient datalog queries |
TVCG
2002
14 years 9 months ago
2002
Image databases are nowadays widely exploited in a number of different contexts, ranging from history of art, through medicine, to education. Existing querying paradigms are based ...
174
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ICDE
2006
IEEE
15 years 11 months ago
2006
IEEE
Aggregate monitoring over data streams is attracting more and more attention in research community due to its broad potential applications. Existing methods suffer two problems, 1...
108
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NDQA
2003
14 years 11 months ago
2003
Growth in government investment, academic research, and commercial question answering (QA) systems is motivating a need for increased planning and coordination. The internationali...
182
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ICDE
2000
IEEE
15 years 11 months ago
2000
IEEE
In high-dimensional and complex metric spaces, determining the nearest neighbor (NN) of a query object ? can be a very expensive task, because of the poor partitioning operated by...
101
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PVLDB
2008
14 years 9 months ago
2008
This paper studies, for the first time, the management of type information for an important class of semi-structured data: nested DAGs (Directed Acyclic Graphs) that describe exec...