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Combining fast, linear and slow diffusion [Article]
(Juliusz Schauder Center for Nonlinear Studies, 2004)
Although the pioneering studies of G. I. Barenblatt ([8] G. I. Barenblatt, On some unsteady motions of a liquid or a gas in a porous medium, Prikl. Mat. Mekh. 16 (1952), 67–68) and A. G. Aronson and L. A. Peletier ([7] ...
An Efficient Cellular Solution for the Partition Problem [Presentation]
(Fénix Editora, 2004)
Numerical problems are not very frequently addressed in the P sys- tems literature. In this paper we present an e®ective solution to the Partition problem via a family of deterministic P systems with active membranes ...
A Note on Complexity Measures for Probabilistic P Systems [Presentation]
(Fénix Editora, 2004)
In this paper we present a first approach to the definition of different entropy measures for probabilistic P systems in order to obtain some quantitative parameters showing how complex the evolution of a P system is. To ...
P Systems with Tables of Rules [Presentation]
(Fénix Editora, 2004)
In the last time, several e®orts were made in order to remove the polarization of membranes from P systems with active membranes; the present paper is a contribution in this respect. In order to compensate the loss of ...
Simulating Avascular Tumors with Membrane Systems [Presentation]
(Fénix Editora, 2005)
Tumor growth has received a considerable attention by the scientific community. In the earliest stages of development, tumor growth seems to be regulated by direct diffusion of nutrients and wastes from and to surrounding ...
Solving the BINPACKING Problem by Recognizer P Systems with Active Membranes [Presentation]
(Fénix Editora, 2004)
In this paper we present an e®ective solution to the BINPACKING problem using a family of recognizer P systems with active membranes, input membrane and external output. The analysis of the solution presented here will ...
Deductive Databases and P Systems [Presentation]
(Fénix Editora, 2004)
In computational processes based on backwards chaining, a rule of the type A Ã B1; : : : ;Bn is seen as a procedure which points that the problem A can be split into the problems B1; : : : ;Bn. In classical devices, the ...
On selections of the metric projection and best proximity pairs in hyperconvex spaces [Article]
(Maria Curie-Skłodowska University, 2005)
In this work we present new results on nonexpansive retractions and best proximity pairs in hyperconvex metric spaces. We sharpen the main results of R. Esp´ınola et al. in [3] (Nonexpansive retracts in hyperconvex spaces, ...
Analysis of Measures of Quantitative Association Rules [Chapter of Book]
(Springer, 2011)
This paper presents the analysis of relationships among different interestingness measures of quality of association rules as first step to select the best objectives in order to develop a multi-objective algorithm. For ...
An Approach to Temporal-Aware Procurement of Web Services [Article]
(Springer Verlag, 2005)
In the context of web service procurement (WSP), temporal–awareness refers to managing service demands and offers which are subject to validity periods, i.e. their evaluation depends not only on quality of service (QoS) ...