نتایج جستجو برای: petri
تعداد نتایج: 12879 فیلتر نتایج به سال:
This paper introduces a new method of empowering Logical Petri Nets (LPN) and Fuzzy Logical Petri Nets (FLPN) [1] using multiple logic. In this paper we proposed a Multi-Logical Petri Nets (MLPN) and Multi-Logical Fuzzy Petri Nets (MLFPN) based on Logical Petri Nets (LPN) and Fuzzy Logical Petri Nets (FLPN). Here we have showed that, how multiple logic is implemented in MLPN and MLFPN. The prop...
Petri nets are a formal, graphical and executable modeling technique for the specification and analysis of concurrent systems and have been widely applied in computer science and many other engineering disciplines. Low level Petri nets are simple and useful for modeling control flows; however, they are not powerful to define data and system functionality. High level Petri nets were developed to...
In this paper, a formal model for antivirus update agent system is presented based on mobile agent technology and predicate/transition Petri nets. The mobile agent system contains two mobile agents called DCA and UNA. It sends out agents to update antivirus on client computers in a network. Each agent takes on a specified responsibility. First, DCA roams through the network and check the last d...
The firing rule of Petri nets relies on a residuation operation for the commutative monoid of natural numbers. We identify a class of residuated commutative monoids, called Petri algebras, for which one can mimic the token game of Petri nets to define the behaviour of generalized Petri net whose flow relation and place contents are valued in such algebraic structures. We show that Petri algebra...
Petri nets, introduced by Carl Adam Petri [12] in 1962, provide a powerful mathematical formalism for describing and analyzing the flow of information and control in concurrent systems. Petri nets can successfully be used as control mechanisms for grammars, i.e., the generative devices of formal languages. In recent papers [4], [5], [9], [16] Petri net controlled grammars have been introduced a...
In the area of Petri nets, many diierent developments have taken place within the last 30 years, in academia as well as in practice. For an adequate use in practice, a coherent and application oriented combination of various types and techniques for Petri nets is necessary. In order to attain a formal basis for diierent classes of Petri nets we introduce the concept of abstract Petri nets. The ...
Petri nets are frequently used for modeling and analysis of discrete event systems. Similar to other modeling formalisms for discrete systems, it suffers from state explosion. Fluidification can be used to overcome this difficulty yielding fluid approximation of original Petri nets in the sense of behaviours and properties. This models are called continuous Petri nets. In this work, stochastic ...
Reset Petri nets extend Petri nets by allowing transitions to empty places, in addition with the usual adding of removing of constants. A Reset Petri net is normalized if the ow function over the Petri arcs (labeled with integers) and the initial state are valuated into f0; 1g. In this paper, we give an eecient method to turn a general Reset Petri net into a-bisimilar normalized Reset Petri net...
Petri nets are formal models of systems which exhibit concurrent activities. As formal models, Petri nets are bipartite directed graphs, in which the two types of vertices represent, in a very general sense, conditions and events. In order to study performance aspects of systems modeled by Petri nets, the durations of modeled activities must also be taken into account. This can be done in diffe...
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