565 search results - page 68 / 113 » Multiple Range Query Optimization in Spatial Databases |
JSAC
2007
14 years 9 months ago
2007
Abstract— In this paper we study the effects of practical pilotassisted channel state estimation on the achievable information theoretic data rates (uplink and downlink) in a mul...
CLOUD
2010
ACM
15 years 2 months ago
2010
ACM
Failures of any type are common in current datacenters, partly due to the higher scales of the data stored. As data scales up, its availability becomes more complex, while differe...
161
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PODS
2009
ACM
15 years 10 months ago
2009
ACM
Let be a finite, ordered alphabet, and consider a string x = x1x2 . . . xn n . A secondary index for x answers alphabet range queries of the form: Given a range [al, ar] , retu...
DATAMINE
1998
14 years 9 months ago
1998
Many applications of knowledge discovery and data mining such as rule discovery for semantic query optimization, database integration and decision support, require the knowledge t...
150
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ICDE
2005
IEEE
15 years 11 months ago
2005
IEEE
The SQL queries produced in XML-to-SQL query translation are often unnecessarily complex, even for simple input XML queries. In this paper we argue that relational systems can do ...