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SIAMSC
2008
148views more  SIAMSC 2008»
15 years 6 months ago
Multilevel Adaptive Aggregation for Markov Chains, with Application to Web Ranking
A multilevel adaptive aggregation method for calculating the stationary probability vector of an irreducible stochastic matrix is described. The method is a special case of the ada...
Hans De Sterck, Thomas A. Manteuffel, Stephen F. M...
ASPLOS
2009
ACM
16 years 7 months ago
QR decomposition on GPUs
QR decomposition is a computationally intensive linear algebra operation that factors a matrix A into the product of a unitary matrix Q and upper triangular matrix R. Adaptive sys...
Andrew Kerr, Dan Campbell, Mark Richards
SIGMOD
2006
ACM
159views Database» more  SIGMOD 2006»
16 years 6 months ago
Flexible and efficient XML search with complex full-text predicates
Recently, there has been extensive research that generated a wealth of new XML full-text query languages, ranging from simple Boolean search to combining sophisticated proximity a...
Sihem Amer-Yahia, Emiran Curtmola, Alin Deutsch
FM
2009
Springer
155views Formal Methods» more  FM 2009»
16 years 27 days ago
Towards an Operational Semantics for Alloy
Abstract. The Alloy modeling language has a mathematically rigorous denotational semantics based on relational algebra. Alloy specifications often represent operations on a state,...
Theophilos Giannakopoulos, Daniel J. Dougherty, Ka...
WOSP
2004
ACM
15 years 11 months ago
Software performance modelling using PEPA nets
Modelling and analysing distributed and mobile software systems is a challenging task. PEPA nets—coloured stochastic Petri nets—are a recently introduced modelling formalism w...
Stephen Gilmore, Jane Hillston, Leïla Kloul, ...