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Browsing by Author "Zandron, Claudio"
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Presentation
A Toolbox for Simpler Active Membrane Algorithms
Leporati, Alberto; Manzoni, Luca; Mauri, Giancarlo; Porreca, Antonio E.; Zandron, Claudio (Fénix, 2016)We show that recogniser P systems with active membranes can be augmented with a priority over their set of rules and any ...

Presentation
Alternative Space Definitions for P Systems with Active Membranes
Alhazov, Artiom; Leporati, Alberto; Manzoni, Luca; Mauri, Giancarlo; Zandron, Claudio (Escuela Técnica Superior de Ingeniería Informática, Universidad de Sevilla, 2020)The first definition of space complexity for P systems was based on an hypothetical real implementation by means of ...

Presentation
Characterizing PSPACE with Shallow NonConfluent P Systems
Leporati, Alberto; Manzoni, Luca; Mauri, Giancarlo; Porreca, Antonio E.; Zandron, Claudio (Universidad de Sevilla, Escuela Técnica Superior de Ingeniería Informática, 2018)In P systems with active membranes, the question of understanding the power of nonconfluence within a polynomial time ...

Presentation
Complete Problems for a Variant of P Systems with Active Membranes
Porreca, Antonio E.; Leporati, Alberto; Mauri, Giancarlo; Zandron, Claudio (Fénix Editora, 2010)We identify a family of decision problems that are hard for some complexity classes defined in terms of P systems with ...

Article
Complexity aspects of polarizationless membrane systems
Leporati, Alberto; Ferretti, Claudio; Mauri, Giancarlo; Pérez Jiménez, Mario de Jesús; Zandron, Claudio (Springer, 2009)We investigate polarizationless P systems with active membranes working in maximally parallel manner, which do not make ...

Presentation
ConstantSpace P Systems with Active Membranes
Leporati, Alberto; Manzoni, Luca; Mauri, Giancarlo; Porreca, Antonio E.; Zandron, Claudio (Fénix Editora, 2014)We continue the investigation of the computational power of space constrained P systems. We show that only a constant ...

Presentation
Converting Integer Numbers from Binary to Unary Notation with P Systems
Gutiérrez Naranjo, Miguel Ángel; Leporati, Alberto; Zandron, Claudio (Fénix Editora, 2005)Current P systems which solve NP–complete numerical problems represent instances in unary notation. In classical complexity ...

Presentation
Dynamical Probabilistic P Systems: Definitions and Applications
Pescini, Dario; Besozzi, Daniela; Zandron, Claudio; Mauri, Giancarlo (Fénix Editora, 2005)We introduce dynamical probabilistic P systems, a variant where probabilities associated to the rules change during the ...

Presentation
Elementary Active Membranes Have the Power of Counting
Porreca, Antonio E.; Leporati, Alberto; Mauri, Giancarlo; Zandron, Claudio (Fénix Editora, 2011)We prove that uniform families of P systems with active membranes operat ing in polynomial time can solve the whole class ...

Presentation
Improving Universality Results on Parallel Enzymatic Numerical P Systems
Leporati, Alberto; Porreca, Antonio E.; Zandron, Claudio; Mauri, Giancarlo (Fénix Editora, 2013)We improve previously known universality results on enzymatic numerical P systems (EN P systems, for short) working in ...

Presentation
Introducing a Space Complexity Measure for P Systems
Porreca, Antonio E.; Leporati, Alberto; Mauri, Giancarlo; Zandron, Claudio (Fénix Editora, 2009)We define space complexity classes in the framework of membrane computing, giving some initial results about their mutual ...

Presentation
Monodirectional P Systems
Leporati, Alberto; Manzoni, Luca; Mauri, Giancarlo; Porreca, Antonio E.; Zandron, Claudio (Fénix Editora, 2015)We investigate the in uence that the ow of information in membrane systems has on their computational complexity. In ...

Presentation
On a Paun’s Conjecture in Membrane Systems
Mauri, Giancarlo; Pérez Jiménez, Mario de Jesús; Zandron, Claudio (Springer, 2007)We study a P˘aun’s conjecture concerning the unsolvability of NP–complete problems by polarizationless P systems with ...

Presentation
On the Computational Efficiency of Polarizationless Recognizer P Systems with Strong Division and Dissolution
Zandron, Claudio; Leporati, Alberto; Ferretti, Claudio; Mauri, Giancarlo; Pérez Jiménez, Mario de Jesús (Fénix Editora, 2008)Recognizer P systems with active membranes have proven to be very powerful computing devices, being able to solve NPcomplete ...

Presentation
On the Computational Power of Spiking Neural P Systems
Leporati, Alberto; Zandron, Claudio; Ferretti, Claudio; Mauri, Giancarlo (Fénix Editora, 2007)In this paper we study some computational properties of spiking neural P systems. In particular, we show that by using ...

Article
P systems with input in binary form
Leporati, Alberto; Zandron, Claudio; Gutiérrez Naranjo, Miguel Ángel (WORLD SCIENTIFIC PUBL CO PTE LTD, 2006)Current P systems which solve NPcomplete numerical problems represent the instances of the problems in unary notation. ...

Presentation
Purely Catalytic P Systems over Integers and Their Generative Power
Alhazov, Artiom; Belingheri, Omar; Freund, Rudolf; Ivanov, Sergiu; Porreca, Antonio E.; Zandron, Claudio (Fénix, 2016)We further investigate the computing power of the recently introduced P systems with Zmultisets (also known as hybrid ...

Presentation
Semilinear Sets, Register Machines, and Integer Vector Addition (P) Systems
Alhazov, Artiom; Belingheri, Omar; Freund, Rudolf; Ivanov, Sergiu; Porreca, Antonio E.; Zandron, Claudio (Fénix, 2016)In this paper we consider P systems working with multisets with integer multiplicities. We focus on a model in which rule ...

Presentation
Sequential P Systems with Unit Rules and Energy Assigned to Membranes
Freund, Rudolf; Leporati, Alberto; Oswald, Marion; Zandron, Claudio (Fénix Editora, 2004)We introduce a new variant of membrane systems where the rules are directly assigned to membranes (and not to the regions ...

Presentation
Simulating counting oracles with cooperation
Leporati, Alberto; Manzoni, Luca; Mauri, Giancarlo; Porreca, Antonio E.; Zandron, Claudio (Escuela Técnica Superior de Ingeniería Informática, Universidad de Sevilla, 2019)We prove that monodirectional shallow chargeless P systems with active membranes and minimal cooperation working in ...