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IPL
2010
107views more  IPL 2010»
13 years 8 months ago
Disjoint pattern matching and implication in strings
We deal with the problem of deciding whether a given set of string patterns implies the presence of a fixed pattern. While checking whether a set of patterns occurs in a string i...
Leonid Libkin, Cristina Sirangelo
PDCAT
2005
Springer
14 years 3 months ago
A New Algorithm to Solve Synchronous Consensus for Dependent Failures
Fault tolerant algorithms are often designed under the t-out-of-n assumption, which is based on the assumption that all processes or components fail independently with equal proba...
Jun Wang, Min Song
ISSAC
2004
Springer
98views Mathematics» more  ISSAC 2004»
14 years 3 months ago
Symbolic summation with single-nested sum extensions
We present a streamlined and refined version of Karr’s summation algorithm. Karr’s original approach constructively decides the telescoping problem in ΠΣ-fields, a very ge...
Carsten Schneider
JUCS
2010
115views more  JUCS 2010»
13 years 4 months ago
Redundant Relations in Relational Databases: A Model Theoretic Perspective
: We initiate in this work the study of a sort of redundancy problem revealed by what we call redundant relations. Roughly, we define a redundant relation in a database instance (d...
Flavio Antonio Ferrarotti, Alejandra Lorena Paolet...
CSCLP
2007
Springer
14 years 4 months ago
Temporal Reasoning in Nested Temporal Networks with Alternatives
Temporal networks play a crucial role in modeling temporal relations in planning and scheduling applications. Temporal Networks with Alternatives (TNAs) were proposed to model alte...
Roman Barták, Ondrej Cepek, Martin Hejna