Recent Submissions

  • Formation and deposition of stable silver nanoparticles encapsulated in solid spheres 

    Sue, S. H.; Popa, Monica Mihaela; Torres Padrosa, Víctor; Crespo Artiaga, Daniel; Shin, H. K.; Calderon Moreno, José Maria (2014-08-01)
    Article
    Restricted access - publisher's policy
    We prepared solid spheres, with diameters between 100 and 400 nm, encapsulating silver nanocrystallites (about 20 +/- 10 nm in diameter), by heating colloidal solutions of silver in methoxyethanol at 120 degrees C. Stable ...
  • Media contracts formalization using a standardized contract expression language 

    Rodríguez Luna, Eva; Delgado Mercè, Jaime; Boch, Laurent; Rodríguez-Doncel, Víctor (Institute of Electrical and Electronics Engineers (IEEE), 2014-04-11)
    Article
    Open Access
    Contract Expression Languages allow representing business contracts in a digital and structured form. Some examples are the Content Reference Forum format, the OASIS eContracts standard or a proposed extension for MPEG-21 ...
  • Assessment tasks: center of the learning process 

    Martínez Martínez, María del Rosario; Amante García, Beatriz; Cadenato Matia, Ana María; Gallego Fernández, María Isabel (2012-05-01)
    Article
    Restricted access - publisher's policy
    Assessment is at the centre of learning process, and is what therefore determinates the process of teaching-learning. It is because of this, the assessment tasks must be designed with several criteria which guarantee its ...
  • JPSearch: new international standard providing interoperable framework for image search and sharing 

    Yoon, Kyoungro; Kim, Youngseop; Park, Je-Ho; Delgado Mercè, Jaime; Yamada, Akio; Dufaux, Frederic; Tous Liesa, Rubén (2012-08)
    Article
    Restricted access - publisher's policy
    For the last 15 years, there have been various research and great advances in the field of content-based search and retrieval of images. In this paper, we present an overview of the JPSearch Standard, which is a recently ...
  • More hybrid and secure protection of statistical data sets 

    Herranz Sotoca, Javier; Nin Guerrero, Jordi; Solé Simó, Marc (IEEE Computer Society Publications, 2012-09)
    Article
    Restricted access - publisher's policy
    Different methods and paradigms to protect data sets containing sensitive statistical information have been proposed and studied. The idea is to publish a perturbed version of the data set that does not leak confidential ...
  • Kd-trees and the real disclosure risks of large statistical databases 

    Herranz Sotoca, Javier; Nin Guerrero, Jordi; Solé Simó, Marc (Elsevier, 2011)
    Article
    Restricted access - publisher's policy
    In data privacy, record linkage can be used as an estimator of the disclosure risk of protected data. To model the worst case scenario one normally attempts to link records from the original data to the protected data. ...
  • Architectures and technologies for adapting secured content in governed multimedia applications 

    Carreras, Anna; Rodríguez Luna, Eva; Dogan, Safak; Arachchi, Hemantha Kodikara; Perramon, Xavier; Delgado Mercè, Jaime; Kondoz, Ahmet M. (IEEE Computer Society Publications, 2011-11-15)
    Article
    Restricted access - publisher's policy
    This article analyzes existing initiatives and proposes new technologies for the governed adaptations of secured content in heterogeneous environments. These technologies are integrated into an architecture for the secure ...
  • Interoperable digital rights management based on the MPEG Extensible Middleware 

    Rodríguez Doncel, Víctor; Delgado Mercè, Jaime; Chiariglione, Filippo; Preda, Marius; Timmerer, Christian (2011)
    Article
    Restricted access - publisher's policy
    This paper describes an interoperable Digital Rights Management architecture promoted by the MPEG standardization group in its new standard known as MPEG-M or MPEG Extensible Middleware (MXM). The goal of this standard ...
  • The Impact of Context Information on User Privacy in Social Networks 

    Carreras Coch, Anna; Delgado Mercè, Jaime; Rodríguez Luna, Eva; Tous, Ruben (Universitat Autònoma de Barcelona (UAB). Servei de Publicacions, 2010)
    Article
    Open Access
    Context-aware applications are becoming very popular as they are a mean of enriching users' experiences in multimedia scenarios. Nevertheless, the acquisition, representation, and protection of contextual information are ...
  • Follow-up and feedback processes in the EHEA 

    Valero García, Miguel; Santamaria Barnadas, Eduard; Salamí San Juan, Esther; Canto Rodrigo, Pablo del; Gallego Fernández, María Isabel; López Canalda, José Manuel; Medina, Esunly; Mochón Duro, Francisco; Mora Serrano, Javier; Reyes Muñoz, María Angélica; Rodríguez Luna, Eva (2011-02-21)
    Article
    Open Access
    In the present paper, we describe the work being carried out by a group of professors so as to implement the follow-up and feedback processes of the activities students do throughout the first academic years in their ...

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