Ara es mostren els items 4-14 de 14

  • Data compression of natural signals based on discrete wavelet transform analysis 

    Reig Bolano, Ramon; Marti Puig, Pere; Solé-Casals, Jordi; Parisi Baradad, Vicenç (2009)
    Text en actes de congrés
    Accés restringit per política de l'editorial
    In this paper we explore the use of the discrete wavelet transform analysis of an arbitrary signal in order to improve the data compression capability of data coders. Wavelet analysis is widespread used in image codifiers, ...
  • Evaluación de un algoritmo de compresión de datos en arquitectura Cell 

    García Fernández, Alberto (Universitat Politècnica de Catalunya, 2010-05-21)
    Projecte/Treball Final de Carrera
    Accés obert
    La finalidad de este proyecto es estudiar y experimentar con la arquitectura Cell BE comercializada por IBM. Actualmente existen muchos fabricantes de procesadores, que a su vez presentan multiples arquitecturas al ...
  • Feasibility study of the PEC compressor in HDFS file format 

    Estepa Sánchez, Carlos (Universitat Politècnica de Catalunya, 2011-11-15)
    Projecte/Treball Final de Carrera
    Accés obert
    English: Improvement of the astrometric format GBIN using HFG5+ PEC.
  • Formalism for a multiresolution time series database model 

    Llusa Serra, Aleix; Vila Marta, Sebastià; Escobet Canal, Teresa (2016-03)
    Article
    Accés restringit per política de l'editorial
    We formalise a specialised database management system model for time series using a multiresolution approach. These special purpose database systems store time series lossy compressed in a space-bounded storage. Time series ...
  • Immersive data comprehension: visualizing uncertainty in measurable models 

    Brunet Crosa, Pere; Andújar Gran, Carlos Antonio (2015-09-29)
    Article
    Accés obert
    Recent advances in 3D scanning technologies have opened new possibilities in a broad range of applications including cultural heritage, medicine, civil engineering, and urban planning. Virtual Reality systems can provide ...
  • (La imposibilidad de) el compresor infinito 

    García Quiles, Pau (Escola Tècnica Superior d'Enginyers de Telecomunicació de Barcelona, 2003)
    Article
    Accés obert
  • Improving web server performance through main memory compression 

    Beltran Querol, Vicenç; Torres Viñals, Jordi; Ayguadé Parra, Eduard (IEEE Computer Society, 2008)
    Comunicació de congrés
    Accés obert
    Current web servers are highly multithreaded applications whose scalability benefits from the current multicore/multiprocessor trend. However, some workloads can not capitalize on this because their performance is limited by ...
  • Modulo compresor/encriptador para datacenters 

    Martínez Pérez, Ivan (Universitat Politècnica de Catalunya, 2014-06-26)
    Treball Final de Grau
    Accés obert
    Propuesta de diseño hardware y software de un módulo compresor/encriptador de datos. La solución software viene acompañada de una implementación en C++.
  • Optimal data compression for lifetime maximization in wireless sensor networks operating in stealth mode 

    Incebacak, Davut; Zilan, Ruken; Tavli, Bulent; Barceló Ordinas, José María; García Vidal, Jorge (Elsevier, 2015-01)
    Article
    Accés restringit per política de l'editorial
    Contextual privacy in Wireless Sensor Networks (WSNs) is concerned with protecting contextual information such as whether, when, and where the data is collected. In this context, hiding the existence of a WSN from adversaries ...
  • Progressive encoding with non-linear source codes for compression of low-entropy sources 

    Ramírez Javega, Francisco; Lamarca Orozco, M. Meritxell; García Frías, Javier (2010)
    Text en actes de congrés
    Accés obert
    We propose a novel scheme for source coding of non-uniform memoryless binary sources based on progressively encoding the input sequence with non-linear encoders. At each stage, a number of source bits is perfectly recovered, ...
  • S3Dc: a 3Dc-based volume compression algorithm 

    Yela Reneses, Héctor; Navazo Álvaro, Isabel; Vázquez Alcocer, Pere Pau (Eurographics association, 2008)
    Text en actes de congrés
    Accés restringit per política de l'editorial
    Volumes acquired for medical purposes are continuously increasing in size, faster than graphic cards memory capacity. Large volumetric datasets do not fit into GPU memory and therefore direct rendering is not possible. ...