392 search results - page 47 / 79 » Optimal location queries in road network databases |
175
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VLDB
2007
ACM
16 years 20 days ago
2007
ACM
A "plan diagram" is a pictorial enumeration of the execution plan choices of a database query optimizer over the relational selectivity space. We have shown recently tha...
119
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JCST
2007
15 years 10 days ago
2007
Abstract Advances in wireless sensor networks and positioning technologies enable new applications monitoring moving objects. Some of these applications, such as traffic managemen...
87
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AINA
2008
IEEE
15 years 7 months ago
2008
IEEE
This paper shows that the performance of peer-to-peer resource discovery algorithms is upper bounded by a k-Steiner minimum tree and proposes an algorithm locating near-optimal qu...
149
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ICDE
1994
IEEE
15 years 4 months ago
1994
IEEE
We describe the design of Mariposa, an experimental distributed data management system that provides high performance in an environment of high data mobility and heterogeneous hos...
121
Voted
SIGMOD
2003
ACM
16 years 17 days ago
2003
ACM
Many applications employ sensors for monitoring entities such as temperature and wind speed. A centralized database tracks these entities to enable query processing. Due to contin...