801 search results - page 149 / 161 » Minimal Locked Trees |
157
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VLDB
2004
ACM
15 years 9 months ago
2004
ACM
In-network aggregation has been proposed as one method for reducing energy consumption in sensor networks. In this paper, we explore two ideas related to further reducing energy co...
150
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SIGMOD
2009
ACM
15 years 9 months ago
2009
ACM
Reachability queries on large directed graphs have attracted much attention recently. The existing work either uses spanning structures, such as chains or trees, to compress the c...
145
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SIGMOD
2007
ACM
15 years 9 months ago
2007
ACM
We consider in this paper a class of Publish-Subscribe (pub-sub) systems called topic-based systems, where users subscribe to topics and are notified on events that belong to thos...
78
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EDBT
2004
ACM
15 years 9 months ago
2004
ACM
This paper presents a framework for understanding and constructing access methods for versioned data. Records are associated with version ranges in a version tree. A minimal repre...
MOBIHOC
2006
ACM
15 years 9 months ago
2006
ACM
We study a novel hierarchical wireless networking approach in which some of the nodes are more capable than others. In such networks, the more capable nodes can serve as Mobile Ba...