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García Merayo, Mercedes ; Andrés Sánchez, César ; Maag, Stéphane ; Cavalli, Ana ; Núñez García, Manuel | IEEE Computer Society | 2009-12In this paper we apply a passive testing methodology to the analysis of a non-trivial system. In our framework, so-called invariants provide us with a formal representation of the requirements of the system. In order to precisely express new pro[...]texto impreso
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Martínez Herrero, Rosario ; Maluenda, David ; Juvells, Ignasi ; Carnicer, Artur | IEEE Computer Society | 2019-02-18According to intensity consideration along the propagation axis, we derived mathematical conditions for a family of modulating functions able to produce needles of arbitrary length, sub-wavelength width and almost constant irradiance. These func[...]texto impreso
One of the most important obstacles when porting an application to the Grid is its highly heterogeneous nature. This heterogeneity usually means an increase of the cost of both the application porting cycle and the operational cost of the infras[...]texto impreso
Vázquez Blanco, Constantino ; Huedo Cuesta, Eduardo ; Montero, Ruben S. ; Llorente, Ignacio M. | IEEE Computer Society | 2009Grid computing involves the ability to harness together the power of computing resources. In this paper we push forward this philosophy and show technologies enabling federation of grid infrastructures regardless of their interface. The aim is t[...]texto impreso
Rodríguez, Manuel ; Tapiador, Daniel ; Fontán, Javier ; Huedo Cuesta, Eduardo ; Montero, Ruben S. ; Llorente, Ignacio M. | IEEE Computer Society | 2009Virtual machines can greatly simplify grid computing by providing an isolated, well-known environment, while increasing security. Also, they can be used as the base technology to dynamically modify the computing elements of a grid, so providing [...]texto impreso
Binary extension (or Galois) fields GF(2^m) have been widely studied due to their use in several important applications, such as cryptography, error control codes and digital signal processing. These applications require efficient hardware imple[...]texto impreso
In this paper, a fast implementation of bit-parallel polynomial basis (PB) multipliers over the binary extension field GF(2^m) generated by type-I irreducible pentanomials is presented. Explicit expressions for the coordinates of the multipliers[...]texto impreso
Huedo Cuesta, Eduardo ; Montero, Ruben S. ; Moreno-Vozmediano, Rafael ; Llorente, Ignacio M. | IEEE Computer Society | 2017-09The BEACON framework enables the provision of federated cloud infrastructures, with special emphasis on inter-cloud networking and security issues, to support the automated deployment of applications and services across different clouds and data[...]texto impreso
Moreno-Vozmediano, Rafael ; Montero, Ruben S. ; Llorente, Ignacio M. | IEEE Computer Society | 2010-10-28Cloud computing is gaining acceptance in many IT organizations, as an elastic, flexible, and variable-cost way to deploy their service platforms using outsourced resources. Unlike traditional utilities where a single provider scheme is a common [...]texto impreso
Sotomayor, Borja ; Montero, Ruben S. ; Llorente, Ignacio M. ; Foster, Ian | IEEE Computer Society | 2009Using virtual machines as a resource provisioning mechanism offers multiple benefits, most recently exploited by “infrastructure-as-a-service” clouds, but also poses several scheduling challenges. More specifi- cally, although we can use the sus[...]texto impreso
Costero Valero, Luis María ; Iranfar, Arman ; Zapater, Marina ; Atienza, David ; Olcoz Herrero, Katzalin | IEEE Computer Society | 2020-12-01The advent of online video streaming applications and services along with the users' demand for high-quality contents require High Efficiency Video Coding (HEVC), which provides higher video quality and more compression at the cost of increased [...]texto impreso
Calderon-Vilca, Hugo D. ; Wun-Rafael, William I. ; Miranda-Loarte, Roberto | IEEE Computer Society | 2018-12-02T16:50:52ZEl texto completo de este trabajo no está disponible en el Repositorio Académico UPC por restricciones de la casa editorial donde ha sido publicado. Suicide is one of the most distinguished causes of death on the news worldwide. There are severa[...]texto impreso
Vega Zamora, Oswaldo Francisco ; Saquicela Galarza, Victor Hugo ; Medina Cartuche, Jose Luis ; Espinoza Mejia, Jorge Mauricio | IEEE Computer Society | 2020-05-22T22:31:32ZEl enfoque tradicional de las plataformas de e-learning basadas en sistemas de gestión del aprendizaje ha permitido que la educación sea accesible para un grupo más amplio de personas; sin embargo, su modelo pedagógico basado en la promoción de [...]
