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CN
2006
74views more  CN 2006»
15 years 3 months ago
Measurement-based optimal routing on overlay architectures for unicast sessions
We propose a measurement-based routing algorithm to load-balance intradomain traffic along multiple paths for multiple unicast sources. Multiple paths are established using overla...
Tuna Güven, Richard J. La, Mark A. Shayman, B...
SIAMSC
2010
141views more  SIAMSC 2010»
15 years 1 months ago
An Iterative Method for Edge-Preserving MAP Estimation When Data-Noise Is Poisson
In numerous applications of image processing, e.g. astronomical and medical imaging, data-noise is well-modeled by a Poisson distribution. This motivates the use of the negative-lo...
Johnathan M. Bardsley, John Goldes
VLDB
2007
ACM
130views Database» more  VLDB 2007»
16 years 3 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
131
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TSP
2008
179views more  TSP 2008»
15 years 2 months ago
Estimation in Gaussian Graphical Models Using Tractable Subgraphs: A Walk-Sum Analysis
Graphical models provide a powerful formalism for statistical signal processing. Due to their sophisticated modeling capabilities, they have found applications in a variety of fie...
V. Chandrasekaran, Jason K. Johnson, Alan S. Wills...
SIGMOD
2004
ACM
142views Database» more  SIGMOD 2004»
16 years 3 months ago
Conditional Selectivity for Statistics on Query Expressions
Cardinality estimation during query optimization relies on simplifying assumptions that usually do not hold in practice. To diminish the impact of inaccurate estimates during opti...
Nicolas Bruno, Surajit Chaudhuri