610 search results - page 51 / 122 » Efficient Query Evaluation on Probabilistic Databases |
100
Voted
TMC
2008
15 years 13 days ago
2008
Location-based spatial queries (LBSQs) refer to spatial queries whose answers rely on the location of the inquirer. Efficient processing of LBSQs is of critical importance with the...
124
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SIGMOD
2004
ACM
16 years 21 days ago
2004
ACM
Existing SQL aggregate functions present important limitations to compute percentages. This article proposes two SQL aggregate functions to compute percentages addressing such lim...
97
Voted
VLDB
1998
ACM
15 years 4 months ago
1998
ACM
We propose and evaluate two indexing schemes for improving the efficiency of data retrieval in high-dimensional databases that are incomplete. These schemes are novel in that the ...
104
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SIGMOD
2003
ACM
16 years 21 days ago
2003
ACM
Object-oriented and object-relational DBMS support setvalued attributes, which are a natural and concise way to model complex information. However, there has been limited research...
133
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DEXAW
2007
IEEE
15 years 4 months ago
2007
IEEE
The problem of efficiently evaluating XPath and XQuery queries has become increasingly significant since more and more XML data is stored in its native form. We propose a novel op...