Results 41 to 50 of about 7,198 (311)

Who Decides Who Decides? [PDF]

open access: yesThe Hastings Center Report, 1977
Peer Reviewed ; http://deepblue.lib.umich.edu/bitstream/2027.42/90544/1/3561853 ...
openaire   +3 more sources

An analytical method for well-formed workflow/Petri net verification of classical soundness

open access: yesInternational Journal of Applied Mathematics and Computer Science, 2014
In this paper we consider workflow nets as dynamical systems governed by ordinary difference equations described by a particular class of Petri nets. Workflow nets are a formal model of business processes.
Clempner Julio
doaj   +1 more source

Completing the picture for the Skolem Problem on order-4 linear recurrence sequences [PDF]

open access: yesTheoretiCS
For almost a century, the decidability of the Skolem Problem - that is, the problem of finding whether a given linear recurrence sequence (LRS) has a zero term - has remained open. A breakthrough in the 1980s established that the Skolem Problem is indeed
Piotr Bacik
doaj   +1 more source

An Application of the Feferman-Vaught Theorem to Automata and Logics for Words over an Infinite Alphabet [PDF]

open access: yesLogical Methods in Computer Science, 2008
We show that a special case of the Feferman-Vaught composition theorem gives rise to a natural notion of automata for finite words over an infinite alphabet, with good closure and decidability properties, as well as several logical characterizations.
Alexis Bès
doaj   +1 more source

Towards a Notion of Distributed Time for Petri Nets

open access: yes, 2001
We set the ground for research on a timed extension of Petri nets where time parameters are associated with tokens and arcs carry constraints that qualify the age of tokens required for enabling. The novelty is that, rather than a single global clock, we
Srba, J.   +5 more
core   +1 more source

Recent Developments on Insertion-Deletion Systems [PDF]

open access: yesComputer Science Journal of Moldova, 2010
This article gives an overview of the recent developments in the study of the operations of insertion and deletion. It presents the origin of these operations, their formal definition and a series of results concerning language properties, decidability ...
Sergey Verlan
doaj  

The Complexity of Combinations of Qualitative Constraint Satisfaction Problems [PDF]

open access: yesLogical Methods in Computer Science, 2020
The CSP of a first-order theory $T$ is the problem of deciding for a given finite set $S$ of atomic formulas whether $T \cup S$ is satisfiable. Let $T_1$ and $T_2$ be two theories with countably infinite models and disjoint signatures.
Manuel Bodirsky, Johannes Greiner
doaj   +1 more source

Deciding equivalence-based properties using constraint solving [PDF]

open access: yes, 2013
Formal methods have proved their usefulness for analyzing the security of protocols. Most existing results focus on trace properties like secrecy or authentication.
Véronique Cortier   +5 more
core   +1 more source

Decidability of Intelligent Systems [PDF]

open access: yesحکمت و فلسفه, 2008
Intelligent systems are designed on the model of the operation of mind; but they come across, at least, the following problems: (a) Can IS solve every problem?
mohammad ali hijjati   +1 more
doaj   +1 more source

Recursive Concurrent Stochastic Games

open access: yes, 2006
. We study Recursive Concurrent Stochastic Games (RCSGs), extending our recent analysis of recursive simple stochastic games [14, 15] to a concurrent setting where the two players choose moves simultaneously and independently at each state.
Mihalis Yannakakis   +3 more
core   +1 more source

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