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» Lower Bounds for Dynamic Algorithms
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VLDB
2007
ACM
130views Database» more  VLDB 2007»
16 years 2 months ago
A Simple and Efficient Estimation Method for Stream Expression Cardinalities
Estimating the cardinality (i.e. number of distinct elements) of an arbitrary set expression defined over multiple distributed streams is one of the most fundamental queries of in...
Aiyou Chen, Jin Cao, Tian Bu
141
Voted
SDM
2009
SIAM
164views Data Mining» more  SDM 2009»
15 years 12 months ago
Time-Decayed Correlated Aggregates over Data Streams.
Data stream analysis frequently relies on identifying correlations and posing conditional queries on the data after it has been seen. Correlated aggregates form an important examp...
Graham Cormode, Srikanta Tirthapura, Bojian Xu
115
Voted
ALT
2008
Springer
15 years 11 months ago
Optimally Learning Social Networks with Activations and Suppressions
In this paper we consider the problem of learning hidden independent cascade social networks using exact value injection queries. These queries involve activating and suppressing a...
Dana Angluin, James Aspnes, Lev Reyzin
GLOBECOM
2009
IEEE
15 years 9 months ago
On the Connectivity of Key-Distribution Strategies in Wireless Sensor Networks
Abstract—Wireless sensor networks (WSNs) are usually missioned to gather critical information in hostile and adversarial environments, which make them susceptible to compromise a...
Hosein Shafiei, Ahmad Khonsari, Mohammad Sadegh Ta...
121
Voted
INFOCOM
2009
IEEE
15 years 9 months ago
Visibility-Graph-Based Shortest-Path Geographic Routing in Sensor Networks
— We study the problem of shortest-path geographic routing in a static sensor network. Existing algorithms often make routing decisions based on node information in local neighbo...
Guang Tan, Marin Bertier, Anne-Marie Kermarrec