817 search results - page 91 / 164 » Generating Efficient Plans for Queries Using Views |
136
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WWW
2009
ACM
16 years 3 months ago
2009
ACM
To deal with the problem of empty or too little answers returned from a Web database in response to a user query, this paper proposes a novel approach to provide relevant and rank...
116
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ECOOP
2006
Springer
15 years 7 months ago
2006
Springer
Object persistence architectures support transparent access to persistent objects. For efficiency, many of these architectures support queries that can prefetch associated objects ...
179
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DCOSS
2008
Springer
15 years 5 months ago
2008
Springer
We consider a mobile sensor network monitoring a spatio-temporal field. Given limited caches at the sensor nodes, the goal is to develop a distributed cache management algorithm to...
235
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GIS
2008
ACM
16 years 4 months ago
2008
ACM
Existing techniques for autonomous indoor navigation are often environment-specific and thus limited in terms of their applicability. In this paper, we take a fundamentally differ...
148
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EDBTW
2004
Springer
15 years 8 months ago
2004
Springer
Many users and applications require the integration of semi-structured data from autonomous, heterogeneous Web sources. Over the last years mediator systems have emerged that use d...