392 search results - page 55 / 79 » Optimal location queries in road network databases |
115
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BTW
2005
Springer
15 years 3 months ago
2005
Springer
Abstract: Peer data management systems (PDMS) are the natural extension of integrated information systems. Conventionally, a single integrating system manages an integrated schema,...
KAIS
2000
14 years 9 months ago
2000
In a mobile environment, querying a database at a stationary server from a mobile client is expensive due to the limited bandwidth of a wireless channel and the instability of the ...
173
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ICDE
2000
IEEE
15 years 11 months ago
2000
IEEE
Optimizing queries that involve operations on spatial data requires estimating the selectivity and cost of these operations. In this paper, we focus on estimating the cost of spat...
AI
2005
Springer
14 years 11 months ago
2005
Springer
Abstract. In this paper, we propose that the select operator in relational databases be adopted for incorporating evidence in Bayesian networks. This approach does not involve the ...
VTC
2007
IEEE
2007
IEEE
Optimization Aspects for Cellular Service Performance and Mobile Positioning in WCDMA Radio Networks
15 years 3 months ago
— The aim of this paper is to evaluate the impact of selected topology planning aspects on performance of WCDMA cellular network and mobile positioning techniques. The assessment...