266 search results - page 51 / 54 » On first-order topological queries |
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WS
2005
ACM
15 years 5 months ago
2005
ACM
Traceback schemes are useful to identify the source of an attack. Existing traceback systems are not suitable for Mobile Ad Hoc Networks (MANET) because they rely on assumptions s...
SSD
2005
Springer
15 years 5 months ago
2005
Springer
Networks often form the core of many users’ spatial databases. Networks are used to support the rapid navigation and analysis of linearly connected data such as that found in tra...
PODS
2010
ACM
15 years 4 months ago
2010
ACM
We give the first optimal algorithm for estimating the number of distinct elements in a data stream, closing a long line of theoretical research on this problem begun by Flajolet...
IDA
2009
Springer
15 years 4 months ago
2009
Springer
Knowledge extraction from data volumes of ever increasing size requires ever more flexible tools to facilitate interactive query. Interactivity enables real-time hypothesis testin...
CCS
2006
ACM
15 years 3 months ago
2006
ACM
In-network aggregation is an essential primitive for performing queries on sensor network data. However, most aggregation algorithms assume that all intermediate nodes are trusted...