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» Prefix-Like Complexities and Computability in the Limit
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STOC
2002
ACM
91views Algorithms» more  STOC 2002»
15 years 10 months ago
New results on monotone dualization and generating hypergraph transversals
This paper considers the problem of dualizing a monotone CNF (equivalently, computing all minimal transversals of a hypergraph), whose associated decision problem is a prominent o...
Thomas Eiter, Georg Gottlob, Kazuhisa Makino
RTSS
2009
IEEE
15 years 4 months ago
Rapid Early-Phase Virtual Integration
In complex hard real-time systems with tight constraints on system resources, small changes in one component of a system can cause a cascade of adverse effects on other parts of t...
Sibin Mohan, Min-Young Nam, Rodolfo Pellizzoni, Lu...
EDBT
2009
ACM
135views Database» more  EDBT 2009»
15 years 2 months ago
Provenance for nested subqueries
Data provenance is essential in applications such as scientific computing, curated databases, and data warehouses. Several systems have been developed that provide provenance fun...
Boris Glavic, Gustavo Alonso
SIGMOD
2003
ACM
196views Database» more  SIGMOD 2003»
15 years 10 months ago
Spreadsheets in RDBMS for OLAP
One of the critical deficiencies of SQL is lack of support for ndimensional array-based computations which are frequent in OLAP environments. Relational OLAP (ROLAP) applications ...
Andrew Witkowski, Srikanth Bellamkonda, Tolga Bozk...
ISVC
2010
Springer
14 years 8 months ago
Image Enhancement by Median Filters in Algebraic Reconstruction Methods: An Experimental Study
Algebraic methods for image reconstruction provide good solutions even if only few projections are available. However, they can create noisy images if the number of iterations or t...
Norbert Hantos, Péter Balázs