565 search results - page 78 / 113 » Multiple Range Query Optimization in Spatial Databases |
COMAD
2009
14 years 10 months ago
2009
The problem of information integration is discussed in the context of answering a query over the web. Querying the web requires that information from different web and other sourc...
65
Voted
PODS
2010
ACM
15 years 2 months ago
2010
ACM
A fundamental problem in data management is to draw a sample of a large data set, for approximate query answering, selectivity estimation, and query planning. With large, streamin...
173
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ICDE
2003
IEEE
15 years 11 months ago
2003
IEEE
Expressing complex OLAP queries using group-by, aggregation, and joins can be extremely difficult. As a result of this, many alternate ways of expressing such queries have been de...
157
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ICDE
2008
IEEE
15 years 11 months ago
2008
IEEE
Applications that monitor functions over rapidly and unpredictably changing data, express their needs as continuous queries. Our focus is on a rich class of queries, expressed as p...
71
Voted
SSD
2005
Springer
15 years 3 months ago
2005
Springer
Many web documents refer to specific geographic localities and many people include geographic context in queries to web search engines. Standard web search engines treat the geogra...