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  • Open Access English
    Authors: 
    Milla, José Manuel; Toral, S. L.; Vargas Villanueva, Manuel; Barrero, Federico;
    Publisher: Institution of Engineering and Technology (IET)
    Country: Spain

    This study proposes traffic queue-parameter estimation based on background subtraction. An appropriate combination of two background models is used: a short-term model, very sensitive to moving vehicles, and a long-term model capable of retaining as foreground temporari...

  • Open Access
    Authors: 
    Sergio Toral; María del Rocío Martínez Torres; Federico Barrero; Manuel R. Arahal;
    Country: Spain

    Intelligent transportation systems (ITS) constitute today a multidisciplinary field of study involving a large number of different research areas. As a consequence, it is difficult to achieve a structured view of ITS, which is necessary to unify efforts and as guidance ...

  • Open Access English
    Authors: 
    Toral, S.L.; Martínez-Torres, M.R.; Barrero, F.;
    Country: Spain

    This paper analyses the behaviour of virtual communities for Open Source Software (OSS) projects. The development of OSS projects relies on virtual communities, which are built on relationships among members, being their final objective sharing knowledge and improving t...

  • Open Access
    Authors: 
    María del Rocío Martínez-Torres; María Del Carmen Díaz-Fernández; Sergio Toral; Federico Barrero;
    Country: Spain

    The evolution of electronics and the growing capabilities of in-vehicle and public infrastructure equipment make feasible the development of new value-added services in the field of intelligent transportation systems (ITS). However, initiatives in this sense frequently ...

  • Open Access
    Authors: 
    Sergio Toral; Federico Barrero; F. Cortes; Derlis Gregor;
    Publisher: Elsevier
    Country: Spain

    The increasing number of ITS (Intelligent Transportation Systems) equipment spread across cities offers tre- mendous possibilities in the development of distributed smart environments. A middleware layer located be- tween the operating system and the fi nal application ...

  • Open Access
    Authors: 
    Sergio Toral; María del Rocío Martínez-Torres; Federico Barrero;
    Country: Spain

    Open source software (OSS) projects represent a new paradigm of software creation and development based on hundreds or even thousands of developers and users organised in the form of a virtual community. The success of an OSS project is closely linked to the successful ...

  • Open Access
    Authors: 
    María del Rocío Martínez-Torres; Sergio Toral; B. Palacios; Federico Barrero;
    Country: Spain

    This paper explores website link structure considering websites as interconnected graphs and analyzing their features as a social network. Two networks have been extracted for representing websites: a domain network containing subdomains or external domains linked throu...

  • Open Access
    Authors: 
    Toral, S. L.; Martínez Torres, R.; Federico Barrero;
    Publisher: Verlag der Technischen Universität Graz
    Country: Spain

    One of the benefits firms can derive from using Open Source Software (OSS) is informal development collaboration, and the primary tool for collaboration and coordination are group mailing lists. The purpose of the paper is modelling mailing lists behaviour in OSS projec...