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  • Publication . Conference object . 2009
    Open Access
    Authors: 
    Paun, Gheorghe;
    Publisher: Fénix Editora
    Country: Spain

    A few open problems and research topics collected during the 7th Brain- storming Week on Membrane Computing are briefly presented; further details can be found in the papers included in the volume. Junta de Andalucía P08 – TIC 04200

  • Open Access English
    Authors: 
    Paun, Gheorghe; Pérez Jiménez, Mario de Jesús;
    Publisher: Taylor and Francis
    Country: Spain

    Ministerio de Ciencia e Innovación TIN2009–13192 Junta de Andalucía P08-TIC-04200

  • Publication . Conference object . 2009
    Open Access
    Authors: 
    Pan, Linqiang; Paun, Gheorghe; Pérez Jiménez, Mario de Jesús;
    Publisher: Fénix Editora
    Country: Spain

    In order to enhance the e±ciency of spiking neural P systems, we introduce the features of neuron division and neuron budding, which are processes inspired by neural stem cell division. As expected (as it is the case for P systems with active membranes), in this way we ...

  • Open Access English
    Authors: 
    Paun, Gheorghe;
    Publisher: Fénix Editora
    Country: Spain

    P systems are computing models inspired by the structure and the function- ing of the living cells; they are the basic computing devices of membrane computing, a branch of natural computing. The present note is an overview of results and open prob- lems related to the b...

  • Publication . Conference object . 2011
    Open Access
    Authors: 
    Gutiérrez Naranjo, Miguel Ángel; Pérez Jiménez, Mario de Jesús;
    Publisher: Fénix Editora
    Country: Spain

    Local search is currently one of the most used methods for finding solution in real-life problems. In this paper we present an implementation of local search with Membrane Computing techniques applied to the N-queens problem as a case study. A CLIPS program inspired in ...

  • Publication . Conference object . 2009
    Open Access English
    Authors: 
    Gutiérrez Naranjo, Miguel Ángel; Pérez Jiménez, Mario de Jesús;
    Publisher: Fénix Editora
    Country: Spain

    Searching all the configurations C′ such that produce a given configuration C, or, in other words, computing backwards in Membrane Computing is an extremely hard task. The current approximations are based in heavy hand-made calculus by considering the specific features ...

  • Publication . Conference object . 2009
    Open Access English
    Authors: 
    Gutiérrez Naranjo, Miguel Ángel; Martínez del Amor, Miguel Ángel; Pérez Hurtado de Mendoza, Ignacio; Pérez Jiménez, Mario de Jesús;
    Publisher: Fénix Editora
    Country: Spain

    The N-queens puzzle consists on placing N queens on an N x Ngrid in such way that no two queens are on the same row, column or diagonal line. In this paper we present a family of P systems with active membranes (one P system for each value of N) that provides all the po...

  • Publication . Conference object . 2010
    Open Access
    Authors: 
    Christinal, Hepzibah A.; Díaz Pernil, Daniel; Gutiérrez Naranjo, Miguel Ángel; Pérez Jiménez, Mario de Jesús;
    Publisher: Fénix Editora
    Country: Spain

    Array grammars have been studied in the framework of Membrane Comput- ing by using rewriting rules from transition P systems. In this paper we present a new approach to dealing with array grammars by using tissue-like P systems and present an application to the segmenta...

  • Open Access
    Authors: 
    Christinal, H. A.; Diaz-Pernil, D.; Miguel A. Gutiérrez-Naranjo; Perez-Jimenez, M. J.;

    Thresholding is the process of splitting a digital image into sets of pixels in order to make it easier to analyze. Pixels are ordered according to a scale of one of their features as brightness or color and the ¯nal image is obtained by comparing the measure of the fea...

  • Open Access
    Authors: 
    Ardelean, Ioan I.; Díaz Pernil, Daniel; Gutiérrez Naranjo, Miguel Ángel; Peña Cantillana, Francisco; Sarchizian, Iris;
    Publisher: Fénix Editora
    Country: Spain

    In this paper, we report a pioneer study of the decrease in chlorophyll uorescence produced by the reduction of MTT (a dimethyl thiazolyl diphenyl tetrazolium salt) monitored using an epi uorescence microscope coupled to automate image analysis in the framework of P sys...