Havana, Cuba

The University of Informatic science is a university research center based in Havana, Cuba, in the municipality of Boyeros. Born as a project of the Cuban Revolution called the "Future Project" which has two objectives: to computerize the country and develop the software industry to contribute to economic development the same. It is the first Cuban university to be established under the purposes of the Battle of Ideas. Wikipedia.


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Osorio K.,University of Information Sciences
2013 IEEE Congress on Evolutionary Computation, CEC 2013 | Year: 2013

In this paper we design a new distributed genetic algorithm, which is able to self-adapt the value of one of the most important parameter in this kind of techniques using the information provided by theoretical models. We study different alternative ways to use the mathematical results in our genetic algorithm. We test our technique on a wide set of instances of the well-known MAX-SAT problem. Experiments show that our self-* proposal is able to obtain similar, or even better, results when it is compared to traditional algorithms whose setting is made by hand. We also show the benefits in terms of saving time and complexity of migration policy settings for distributed genetic algorithms without reducing their efficiency. © 2013 IEEE.


Sanchez-Diaz G.,Autonomous University of San Luis Potosi | Lazo-Cortes M.,University of Information Sciences | Piza-Davila I.,Instituto Tecnologico Y Of Estudios Superiores Of Occidente
International Journal of Computational Intelligence Systems | Year: 2012

In this paper, we introduce a fast implementation of the CT EXT algorithm for testor property identification, that is based on an accumulative binary tuple. The fast implementation of the CT EXT algorithm (one of the fastest algorithms reported), is designed to generate all the typical testors from a training matrix, requiring a reduced number of operations. Experimental results using this fast implementation and the comparison with other state-of-the-art algorithms that generate typical testors are presented. © 2012 Copyright the authors.


Montesino R.,University of Information Sciences | Fenz S.,Vienna University of Technology
Proceedings of the 2011 6th International Conference on Availability, Reliability and Security, ARES 2011 | Year: 2011

Information security management is a very complex task which involves the implementation and monitoring of more than 130 security controls. To achieve greater efficiency in this process it is necessary to automate as many controls as possible. This paper provides an analysis of how many controls can be automated, based on the standards ISO 27001 and NIST SP800-53. Furthermore, we take the automation potential of controls included in the Consensus Audit Guidelines into account. Finally, we provide an overview of security applications that support automation in the operation of information security controls to increase the efficiency of information security management. © 2011 IEEE.


Montesino R.,University of Information Sciences | Fenz S.,Vienna University of Technology
Proceedings - 2011 European Intelligence and Security Informatics Conference, EISIC 2011 | Year: 2011

Information security management, as defined in ISO 27001, deals with establishing, implementing, operating, monitoring, reviewing, maintaining, and improving an information security management system. This paper provides an analysis about the automation possibilities in information security management. The analysis takes into account the potential of using (i) security ontologies in risk management, (ii) hard- and software systems for the automatic operation of certain security controls, and (iii) the Security Control Automation Protocol (SCAP) for automatically checking compliance and security configurations. The analysis results support organizations and security managers at identifying systems they can use to achieve greater efficiency in the information security management process. © 2011 IEEE.


Demontis P.,University of Sassari | Gulin-Gonzalez J.,University of Information Sciences | Suffritti G.B.,University of Sassari
Journal of Physical Chemistry C | Year: 2012

A computational molecular dynamics study about structural, vibrational, and dynamical properties of water adsorbed in AFI zeolite types, AlPO 4-5, using a newly extended potential model and its all-silica isomorph, SSZ-24, is reported. The investigation was performed at different temperatures and for different water coverage (loading). The results of our molecular dynamics simulations allow a better comprehension of the water's properties in these zeolites. The computed structural data agree very well with the experiments for AlPO 4-5, reproducing the presence of helicoidal chains of the adsorbed water molecules, but predict a different arrangement of water molecules for SSZ-24, namely linear chains running along the channel axis. The diffusion coefficient of water at different loadings and temperature for both AlPO 4-5 and SSZ-24 were computed. According to our results in the temperature range 230-300 K, the diffusivity at the highest considered loading is 1 order of magnitude smaller than in bulk water, in essential agreement with the experiment. The results of our molecular dynamics simulations allow a better comprehension of the water's properties in these zeolites. © 2012 American Chemical Society.


Demontis P.,University of Sassari | Gulin-Gonzalez J.,University of Information Sciences | Masia M.,University of Sassari | Suffritti G.B.,University of Sassari
Journal of Physics Condensed Matter | Year: 2010

In order to study the behaviour of water adsorbed in zeolites, which are microporous crystalline aluminosilicates, whose channels and cavities of nanometric dimensions can host many different molecules, we developed a sophisticated empirical potential for water, including the full flexibility of the molecule and the correct response to the electric field generated by the cations and by the charged atoms of the aluminosilicate framework. The reproduction of experimental data by our potential model is similar or even better than that obtained from the first principles methods. The results of molecular dynamics simulations of water confined in a variety of zeolites (worm-like clusters in silicalite, spherical nanoclusters in zeolite A and ice-like nanotubes in AlPO4-5 and SSZ-24) at different temperatures and coverage (loading) are discussed in connection with the experimental data, whose overall good reproduction encourages the attempt of an atomic-scale description of structural and dynamical phenomena occurring in confined water, in particular in the supercooled regime. The results are also compared with simulations and experimental data on bulk water. © 2010 IOP Publishing Ltd.


Suffritti G.B.,University of Sassari | Demontis P.,University of Sassari | Gulin-Gonzlez J.,University of Information Sciences | Masia M.,University of Sassari
Journal of Physics Condensed Matter | Year: 2012

In order to study dynamic crossover phenomena in nanoconfined water we performed a series of molecular dynamics (MD) computer simulations of water clusters adsorbed in zeolites, which are microporous crystalline aluminosilicates containing channels and cavities of nanometric dimensions. We used a sophisticated empirical potential for water, including the full flexibility of the molecule and the correct response to the electric field generated by the cations and by the charged atoms of the aluminosilicate framework. In addition, the full flexibility of the aluminosilicate framework was included in the calculations. Previously reported and new simulations of water confined in a number of different types of zeolites in the temperature range 100300K and at various coverage are discussed in connection with the experimental data. Dynamic crossover phenomena are found in all the considered cases, in spite of the different shape and size of the clusters, even when the confinement hinders the formation of tetrahedral hydrogen bonds for water molecules. Hypotheses about the possible dynamic crossover mechanisms are proposed. © 2012 IOP Publishing Ltd.


Demontis P.,University of Sassari | Gulin-Gonzalez J.,University of Information Sciences | Jobic H.,CNRS Research on Catalysis and Environment in Lyon | Suffritti G.B.,University of Sassari
Journal of Physical Chemistry C | Year: 2010

The behavior of water confined in nanoporous materials and, in particular, in zeolites is an important clue for understanding many various phenomena in geophysics, catalysis, and environmental science fields. In this study, the diffusion of water in zeolites Na A and NaCa A at three different loadings is studied by a classical molecular dynamics simulation technique. The results are in semiquantitative agreement with PFG NMR and QENS data, despite the good reproduction of structural and vibrational properties of the considered systems. Activation energies are in the range of those derived by the two experimental techniques. A detailed analysis of the simulated trajectories allows furnishing suggestions about the diffusion mechanism, involving a coordinated motion of water molecules and cations. Finally, the mobility of the cations, which depends strongly on the number of adsorbed water molecules and the nature of cations themselves, is investigated. The activation energies for the diffusion of the cations are too high to obtain quantitative results from MD simulations, but the observed motions can be of interest in view of the simulation of cation exchange in zeolites. © 2010 American Chemical Society.


Leyva-Vazquez M.,University of Information Sciences | Perez-Teruel K.,University of Information Sciences | John R.I.,University of Nottingham
CONIELECOMP 2014 - 24th International Conference on Electronics, Communications and Computers | Year: 2014

Enterprise architecture makes the connection between enterprise goals, processes and IT systems. These connections represented in causal models can be used to enhance decision making on enterprise-wide issues. This paper describes a new framework for enterprise architecture decision making based on enterprise modeling, fuzzy cognitive mapping and the ordered weighted averaging (OWA) operators. The proposal makes use of causal relations modeling using fuzzy cognitive maps. An OWA operator based on distance are used to rank the scenarios dependent upon the decision makers risk preferences. The model aims to extend the enterprise architecture analysis toolbox, enabling more powerful tools for scenario analysis. A case study showing information systems selection is provided in conjunction with future research directions. © 2014 IEEE.


Alonso-Sierra L.E.,University of Information Sciences | Hidalgo-Delgado Y.,University of Information Sciences
CEUR Workshop Proceedings | Year: 2014

The problem of the ambiguity of the names of the authors is the real chance to find names written syntactically different but that refer to the same author in a collection of bibliographic metadata. Due to this, names of authors published following the linked data principles are repeated in a same RDF graph. This paper presents an approach to address this problem based in clustering techniques. The proposal uses available elements related to authors in scientific papers, such as: co-authors, affiliation, metadata sources and titles of papers. Although the proposal is under development, there have been some encouraging results. Results are contrasted with existing similar approaches in the literature.

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