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ICDCN
2009
Springer
15 years 11 months ago
Optimizing Multi-hop Queries in ZigBee Based Multi-sink Sensor Networks
Wireless sensor networks with multiple users collecting data directly from the sensors have many potential applications. An important problem is to allocate for each user a query r...
Bing Han, Gwendal Simon
CONCUR
2001
Springer
15 years 11 months ago
A Static Analysis Technique for Graph Transformation Systems
In this paper we introduce a static analysis technique for graph transformation systems. We present an algorithm which, given a graph transformation system and a start graph, produ...
Paolo Baldan, Andrea Corradini, Barbara König
ICNP
2000
IEEE
15 years 11 months ago
A Topology-Independent Fair Queueing Model in Ad Hoc Wireless Networks
Fair queueing of rate and delay-sensitive packet flows in a shared-medium, multihop wireless network remains largely unaddressed because of the unique design issues such as locat...
Haiyun Luo, Songwu Lu
VLDB
1997
ACM
112views Database» more  VLDB 1997»
15 years 11 months ago
Selectivity Estimation Without the Attribute Value Independence Assumption
The result size of a query that involves multiple attributes from the same relation depends on these attributes’ joint data distribution,i.e., the frequencies of all combination...
Viswanath Poosala, Yannis E. Ioannidis
ICASSP
2009
IEEE
15 years 10 months ago
Principal component analysis in decomposable Gaussian graphical models
We consider principal component analysis (PCA) in decomposable Gaussian graphical models. We exploit the prior information in these models in order to distribute its computation. ...
Ami Wiesel, Alfred O. Hero III