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» Stability for Effective Algebras
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DATE
2007
IEEE
114views Hardware» more  DATE 2007»
15 years 6 months ago
Fast positive-real balanced truncation of symmetric systems using cross Riccati equations
We present a computationally efficient implementation of positive-real balanced truncation (PRBT) for symmetric multiple-input multiple-output (MIMO) systems. The solution of a p...
Ngai Wong
DGCI
2005
Springer
15 years 5 months ago
Computation of Homology Groups and Generators
Topological invariants are extremely useful in many applications related to digital imaging and geometric modeling, and homology is a classical one, which has not yet been fully e...
Samuel Peltier, Sylvie Alayrangues, Laurent Fuchs,...
VLDB
2004
ACM
113views Database» more  VLDB 2004»
15 years 5 months ago
Resource Sharing in Continuous Sliding-Window Aggregates
We consider the problem of resource sharing when processing large numbers of continuous queries. We specifically address sliding-window aggregates over data streams, an important...
Arvind Arasu, Jennifer Widom
VLDB
1997
ACM
112views Database» more  VLDB 1997»
15 years 4 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
ICFEM
2007
Springer
15 years 3 months ago
Testing for Refinement in CSP
Abstract. CSP is a well-established formalism for modelling and verification of concurrent reactive systems based on refinement. Consolidated denotational models and an effective t...
Ana Cavalcanti, Marie-Claude Gaudel