BWMC2011. Brainstorming Week On Membrane Computing (9th. 2011. Sevilla)

URI permanente para esta colecciónhttps://hdl.handle.net/11441/34361

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Examinando BWMC2011. Brainstorming Week On Membrane Computing (9th. 2011. Sevilla) por Autor "Ionescu, Mihai"

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    Notes About Spiking Neural P Systems
    (Fénix Editora, 2011) Ionescu, Mihai; Paun, Gheorghe; Universidad de Sevilla. Departamento de Ciencias de la Computación e Inteligencia Artificial; Junta de Andalucía; Universidad de Sevilla. TIC193: Computación Natural
    Spiking neural P systems (SN P systems, for short) are much investigated in the last years in membrane computing, but still many open problems and research topics are open in this area. Here, we first recall two such problems (both related to neural biology) from. One of them asks to build an SN P system able to store a number, and to provide it to a reader without losing it, so that the number is available for a further reading. We build here such a memory module and we discuss its extension to model/implement more general operations, specific to (simple) data bases. Then, we formulate another research issue, concerning pattern recognition in terms of SN P systems. In the context, we define a recent version of SN P systems, enlarged with rules able to request spikes from the environment; based on this version, so-called SN dP systems were recently introduced, extending to neural P systems the idea of a distributed dP automaton. Some details about such devices are also given, as a further invitation to the reader to this area of research.
  • Miniatura
    Acceso AbiertoPonencia
    Spiking Neural dP Systems
    (Fénix Editora, 2011) Ionescu, Mihai; Paun, Gheorghe; Pérez Jiménez, Mario de Jesús; Yokomori, Takashi; Universidad de Sevilla. Departamento de Ciencias de la Computación e Inteligencia Artificial; Junta de Andalucía; Universidad de Sevilla. TIC193: Computación Natural
    We bring together two topics recently introduced in membrane computing, the much investigated spiking neural P systems (in short, SN P systems), inspired from the way the neurons communicate through spikes, and the dP systems (distributed P systems, with components which "read" strings from the environment and then cooperate in accepting their concatenation). The goal is to introduce SN dP systems, and to this aim we first introduce SN P systems with the possibility to input, at their request, spikes from the environment; this is done by so-called request rules. A preliminary investigation of the obtained SN dP systems (they can also be called automata) is carried out. As expected, request rules are useful, while the distribution in terms of dP systems can handle languages which cannot be generated by usual SN P systems. We always work with extended SN P systems; the non-extended case, as well as several other natural questions remain open.
  • Miniatura
    Acceso AbiertoPonencia
    Spiking Neural P Systems with Several Types of Spikes
    (Fénix Editora, 2011) Ionescu, Mihai; Paun, Gheorghe; Pérez Jiménez, Mario de Jesús; Rodríguez Patón, Alfonso; Universidad de Sevilla. Departamento de Ciencias de la Computación e Inteligencia Artificial; Junta de Andalucía; Universidad de Sevilla. TIC193: Computación Natural
    With a motivation related to gene expression, where enzymes act in series, somewhat similar to the train spikes traveling along the axons of neurons, we consider an extension of spiking neural P systems, where several types of "spikes" are allowed. The power of the obtained spiking neural P systems is investigated and the modeling of gene expression in these terms is discussed. Some further extensions are mentioned, such as considering a process of decay in time of the spikes.