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CAI
2005
Springer
14 years 10 months ago
Behavioural Equivalences on Finite-State Systems are PTIME-hard
The paper shows a logspace-reduction from the boolean circuit value problem which demonstrates that any relation subsuming bisimilarity and being subsumed by trace preorder (i.e.,...
Zdenek Sawa, Petr Jancar
FOIKS
2010
Springer
15 years 1 months ago
Towards a Unified Model of Preference-Based Argumentation
Abstract. Argumentation is a reasoning model based on the construction and the evaluation of arguments. In his seminal paper, Dung has proe most abstract argumentation framework. I...
Jean-Rémi Bourguet, Leila Amgoud, Rallou Th...
ENTCS
2008
81views more  ENTCS 2008»
14 years 10 months ago
Presenting Dcpos and Dcpo Algebras
Dcpos can be presented by a preorder of generators and inequational relations expressed as covers. Algebraic operations on the generators (possibly with their results being ideals...
Achim Jung, M. Andrew Moshier, Steven J. Vickers
DLT
2003
14 years 11 months ago
NFA Reduction Algorithms by Means of Regular Inequalities
We present different techniques for reducing the number of states and transitions in nondeterministic automata. These techniques are based on the two preorders over the set of st...
Jean-Marc Champarnaud, Fabien Coulon
EDBT
2008
ACM
122views Database» more  EDBT 2008»
15 years 10 months ago
Mining all frequent projection-selection queries from a relational table
In this paper we study the problem of mining all frequent queries in a given database table, a problem known to be intractable even for conjunctive queries. We restrict our attent...
Tao-Yuan Jen, Dominique Laurent, Nicolas Spyratos