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Listar por autor "Freund, Rudolf"
Mostrando ítems 1-20 de 56
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Ponencia
A Formal Framework for P Systems with Dynamic Structure
Freund, Rudolf; Pérez Hurtado de Mendoza, Ignacio; Riscos Núñez, Agustín; Verlan, Sergey (Fénix Editora, 2012)This article introduces a formalism/framework able to describe different variants of P systems having a dynamic structure. ...
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Artículo
A formalization of membrane systems with dynamically evolving structures
Freund, Rudolf; Pérez Hurtado de Mendoza, Ignacio; Riscos Núñez, Agustín; Verlan, Sergey (Taylor and Francis, 2013)This article introduces a general formalism/framework flexible enough to cover descriptions of different variants of P ...
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Ponencia
Asynchronous and Maximally Parallel Deterministic Controlled Non-Cooperative P Systems Characterize NFIN coNFIN
Alhazov, Artiom; Freund, Rudolf (Fénix Editora, 2012)Membrane systems (with symbol objects) are distributed controlled multiset processing systems. Non-cooperative P systems ...
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Ponencia
Beyond Generalized Multiplicities: Register Machines over Groups
Alhazov, Artiom; Freund, Rudolf; Ivanov, Sergiu (Escuela Técnica Superior de Ingeniería Informática, Universidad de Sevilla, 2019)Register machines are a classic model of computing, often seen as a canonical example of a device manipulating natural ...
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Ponencia
Catalytic P Systems with Weak Priority of Catalytic Over Non-catalytic Rules
Alhazov, Artiom; Freund, Rudolf; Ivanov, Sergiu (Escuela Técnica Superior de Ingeniería Informática, Universidad de Sevilla, 2020)Catalytic P systems are among the rst variants of membrane systems ever considered in this area. This variant of systems ...
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Ponencia
Complexity of Simulating R Systems by P Systems
Alhazov, Artiom; Aman, Bogdan; Freund, Rudolf; Ivanov, Sergiu (Fénix, 2016)We show multiple ways to simulate R systems by non-cooperative P systems with atomic control by promoters and/or inhibitors, ...
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Ponencia
Computational Completeness of P Systems Using Maximal Variants of the Set Derivation Mode
Alhazov, Artiom; Freund, Rudolf; Verlan, Sergey (Fénix, 2016)We consider P systems only allowing rules to be used in at most one copy in each derivation step, especially the variant ...
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Ponencia
Deterministic Non-cooperative P Systems with Strong Context Conditions
Alhazov, Artiom; Freund, Rudolf (Fénix Editora, 2015)We continue the line of research of deterministic parallel non-cooperative multiset rewriting with control. We here ...
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Ponencia
Event-Related Outputs of Computations in P Systems
Cavaliere, Matteo; Freund, Rudolf; Leitsch, Alexander; Paun, Gheorghe (Fénix Editora, 2005)We briefly investigate the idea to consider as the result of a computation in a P system the number of steps elapsed ...
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Ponencia
Extended SNP Systems with States
Alhazov, Artiom; Freund, Rudolf; Ivanov, Sergiu (Fénix, 2016)We consider (extended) spiking neural P systems with states, where the applicability of rules in a neuron not only depends ...
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Ponencia
Extended Spiking Neural P systems with Excitatory and Inhibitory Astrocytes
Binder, Aneta; Freund, Rudolf; Oswald, Marion; Vock, Lorenz (Fénix Editora, 2007)We investigate an extended model of spiking neural P systems incorporating astrocytes and their excitatory or inhibitory ...
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Ponencia
Extended Spiking Neural P Systems with White Hole Rules
Alhazov, Artiom; Freund, Rudolf; Ivanov, Sergiu; Oswald, Marion; Verlan, Sergey (Fénix Editora, 2015)We consider extended spiking neural P systems with the additional possibility of so-called \white hole rules", which send ...
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Ponencia
How to Go Beyond Turing with P Automata: Time Travels, Regular Observer !-Languages, and Partial Adult Halting
Freund, Rudolf; Ivanov, Sergiu; Staiger, Ludwig (Fénix Editora, 2015)In this paper we investigate several variants of P automata having in nite runs on nite inputs. By imposing speci c ...
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Ponencia
Input-Driven Tissue P Automata
Alhazov, Artiom; Freund, Rudolf; Ivanov, Sergiu; Oswald, Marion; Verlan, Sergey (Universidad de Sevilla, Escuela Técnica Superior de Ingeniería Informática, 2018)We introduce several variants of input-driven tissue P automata where the rules to be applied only depend on the input ...
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Ponencia
Introducing the Concept of Activation and Blocking of Rules in the General Framework for Regulated Rewriting in Sequential Grammars
Alhazov, Artiom; Freund, Rudolf; Ivanov, Sergiu (Universidad de Sevilla, Escuela Técnica Superior de Ingeniería Informática, 2018)We introduce new possibilities to control the application of rules based on the preceding application of rules which can ...
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Ponencia
Length P Systems with a Lone Traveler
Alhazov, Artiom; Freund, Rudolf; Ivanov, Sergiu (Fénix Editora, 2014)In this paper we consider P systems with linear membrane structures (only one membrane is elementary) with at most one ...
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Ponencia
Matrix Languages, Register Machines, Vector Addition Systems
Freund, Rudolf; Ibarra, Óscar H.; Paun, Gheorghe; Yen, Hsu-Chen (Fénix Editora, 2005)We give a direct and simple proof of the equality of Parikh images of lan- guages generated by matrix grammars with ...
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Ponencia
Matter and Anti-Matter in Membrane Systems
Alhazov, Artiom; Aman, Bogdan; Freund, Rudolf; Paun, Gheorghe (Fénix Editora, 2014)The concept of a matter object being annihilated when meeting its corresponding anti-matter object is investigated in the ...
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Artículo
Membrane division, restricted membrane creation and object complexity in P systems
Alhazov, Artiom; Freund, Rudolf; Riscos Núñez, Agustín (Taylor and Francis, 2006)We improve, by using register machines, some existing universality results for specific models of P systems. P systems ...
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Ponencia
Multiset Random Context Grammars, Checkers, and Transducers
Cavaliere, Matteo; Freund, Rudolf; Oswald, Marion; Sburlan, Dragos (Fénix Editora, 2006)We introduce a general model of random context multiset grammars as well as the concept of multiset random context checkers ...