2674 search results - page 411 / 535 » Data Models and Query Languages for Spatial Databases |
115
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MMS
2006
15 years 2 months ago
2006
: In order to reduce transmission costs and response time, mobile clients typically cache data locally. But, avoiding the usage of outdated data and maintaining the consistency of ...
199
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CIE
2011
Springer
14 years 2 months ago
2011
Springer
Automatic classes are classes of languages for which a finite automaton can decide whether a given element is in a set given by its index. The present work studies the learnabilit...
138
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ICDE
2010
IEEE
15 years 9 months ago
2010
IEEE
— In this paper we propose PARINET, a new access method to efficiently retrieve the trajectories of objects moving in networks. The structure of PARINET is based on a combination...
228
Voted
ICDE
2008
IEEE
16 years 3 months ago
2008
IEEE
ct The backbone of the XML data model, namely ordered, unranked trees, is inherently recursive and it is natural to equip the associated languages with constructs that can query su...
104
Voted
WWW
2003
ACM
16 years 3 months ago
2003
ACM
This paper focuses on the optimization of the navigation through voluminous subsumption hierarchies of topics employed by Portal Catalogs like Netscape Open Directory (ODP). We ad...