486 search results - page 20 / 98 » Evaluating Top-k Queries over Web-Accessible Databases |
138
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EDBT
2010
ACM
15 years 3 months ago
2010
ACM
The availability of indoor positioning renders it possible to deploy location-based services in indoor spaces. Many such services will benefit from the efficient support for k n...
136
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ICDE
2012
IEEE
13 years 3 months ago
2012
IEEE
— XML is commonly supported by SQL database systems. However, existing mappings of XML to tables can only deliver satisfactory query performance for limited use cases. In this pa...
108
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ICDE
2010
IEEE
16 years 1 months ago
2010
IEEE
Personalized database systems give users answers tailored to their personal preferences. While numerous preference evaluation methods for databases have been proposed (e.g., skylin...
197
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ICDE
2004
IEEE
16 years 2 months ago
2004
IEEE
We examine the problem of evaluating selection queries over imprecisely represented objects. Such objects are used either because they are much smaller in size than the precise on...
121
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ADC
2008
Springer
15 years 7 months ago
2008
Springer
With respect to current methods for query evaluation over XML data streams, adoption of certain types of buffering techniques is unavoidable. Under lots of circumstances, the buff...