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» Preprocessing of Intractable Problems
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ICCS
2007
Springer
14 years 1 months ago
Hessian-Based Model Reduction for Large-Scale Data Assimilation Problems
Assimilation of spatially- and temporally-distributed state observations into simulations of dynamical systems stemming from discretized PDEs leads to inverse problems with high-di...
Omar Bashir, Omar Ghattas, Judith Hill, Bart G. va...
AAAI
2006
13 years 9 months ago
Compilation of Query-Rewriting Problems into Tractable Fragments of Propositional Logic
We consider the problem of rewriting a query efficiently using materialized views. In the context of information integration, this problem has received significant attention in th...
Yolifé Arvelo, Blai Bonet, Maria-Esther Vid...
WCC
2005
Springer
117views Cryptology» more  WCC 2005»
14 years 1 months ago
Interpolation of Functions Related to the Integer Factoring Problem
The security of the RSA public key cryptosystem depends on the intractability of the integer factoring problem. This paper shall give some theoretical support to the assumption of ...
Clemens Adelmann, Arne Winterhof
EXTREME
2003
ACM
14 years 28 days ago
The difficulty of schema conformance problems
This paper examines the difficulty of the schema conformance problem for the following XML schema languages: • DTD • RELAX NG with W3C XML Schema Datatypes • Schematron • ...
Robert C. Lyons
STACS
2010
Springer
14 years 2 months ago
Reflections on Multivariate Algorithmics and Problem Parameterization
Research on parameterized algorithmics for NP-hard problems has steadily grown over the last years. We survey and discuss how parameterized complexity analysis naturally develops i...
Rolf Niedermeier