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IPL
2010
107views more  IPL 2010»
15 years 4 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
15 years 11 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»
15 years 11 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»
15 years 26 days 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
16 years 8 days 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