2217 search results - page 120 / 444 » Rank-aware Query Optimization |
169
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TKDE
2011
14 years 8 months ago
2011
Given a positive value r, a distance based range query returns the objects that lie within the distance r of the query location.
In this paper, we focus on the distance based rang...
143
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ADBIS
1998
Springer
15 years 9 months ago
1998
Springer
In order to answer efficiently range queries in 2-d R-trees, first we sort queries by means of a space filling curve, then we group them together, and finally pass them for process...
139
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VLDB
1999
ACM
15 years 9 months ago
1999
ACM
XML is an emerging standard for data representation and exchange on the World-Wide Web. Due to the nature of information on the Web and the inherent flexibility of XML, we expect...
168
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ICDE
2009
IEEE
15 years 12 months ago
2009
IEEE
— Existing stream processing systems are optimized for a specific metric, which may limit their applicability to diverse applications and environments. This paper presents XFlow...
138
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RTDB
1996
15 years 6 months ago
1996
We are developing an object-oriented real-time database system that includes a relationally complete query language. Unlike conventional query optimizers, our optimizer estimates ...