1071 search results - page 88 / 215 » A Data Model for Moving Objects Supporting Aggregation |
215
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DC
2008
15 years 4 months ago
2008
We study the problem of maintaining a sketch of recent elements of a data stream. Motivated by applications involving network data, we consider streams that are asynchronous, in wh...
135
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ER
1999
Springer
15 years 8 months ago
1999
Springer
Several federated database systems have been built in the past using the relational or the object model as federating model. This paper gives an overview of the XMLMedia system, a ...
130
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IJCV
1998
15 years 3 months ago
1998
Object localization using sensed data features and corresponding model features is a fundamental problem in machine vision. We reformulate object localization as a least squares p...
152
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ECMAST
1997
Springer
15 years 8 months ago
1997
Springer
This paper introduces a multicast based architecture for supporting large scale Collaborative Virtual Environments (CVEs). The paper begins by defining CVEs, discussing the motivat...
158
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TMC
2011
14 years 11 months ago
2011
We consider the problem of optimal channel access to provide quality of service (QoS) for data transmission in cognitive vehicular networks. In such a network the vehicular nodes ...