5856 search results - page 480 / 1172 » Developing Query Patterns |
250
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ICDE
2005
IEEE
16 years 6 months ago
2005
IEEE
Index structures are designed to optimize search performance, while at the same time supporting efficient data updates. Although not explicit, existing index structures are typica...
241
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ICDE
1998
IEEE
16 years 6 months ago
1998
IEEE
?Past R-tree studies have focused on the number of nodes visited as a metric of query performance. Since database systems usually include a buffering mechanism, we propose that the...
256
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GIS
2007
ACM
16 years 6 months ago
2007
ACM
The development of areas such as remote and airborne sensing, location based services, and geosensor networks enables the collection of large volumes of spatial data. These datase...
136
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WWW
2009
ACM
16 years 5 months ago
2009
ACM
Capturing the context of a user's query from the previous queries and clicks in the same session may help understand the user's information need. A context-aware approac...
243
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VLDB
2008
ACM
16 years 5 months ago
2008
ACM
Abstract Existing spatiotemporal indexes suffer from either large update cost or poor query performance, except for the Bx -tree (the state-of-the-art), which consists of multiple ...