Exploració per tema "Dades -- Compressió (Informàtica)"

Ara es mostren els items 21-28 de 28

    • 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 obert
      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 ...

    • Payload data handling, telemetry and data compression systems for Gaia. 

      Portell i de Mora, Jordi (Universitat Politècnica de Catalunya, 2005-09-26)
      Tesi
      Accés obert
      Gaia, la nova missió astromètrica de la ESA amb un llançament previst pel 2011, observarà més de mil milions d'estels i altres objectes amb una exactitud sense precedents. Els seus ambiciosos objectius desbanquen completament ...

    • Performance analysis of a new packet trace compressor based on TCP flow clustering 

      Holanda Filho, Raimir; Verdú Mulà, Javier; García Vidal, Jorge; Valero Cortés, Mateo (Institute of Electrical and Electronics Engineers (IEEE), 2005)
      Text en actes de congrés
      Accés obert
      In this paper we study the properties of a new packet trace compression method based on clustering of TCP flows. With our proposed method, the compression ratio that we achieve is around 3%, reducing the file size, for ...

    • 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. ...

    • Side channel attack on a partially encrypted MPEG-G file 

      Naro, Daniel; Delgado Mercè, Jaime; Llorente Viejo, Silvia (2021-05)
      Article
      Accés obert
      New genome sequencing technologies have decreased the cost of generating genomic data, thus increasing storage needs. The International Organization for Standardization (ISO) working group MPEG has developed a standard for ...

    • Software de gestió de dades per a nanosatèl·lits 

      Masip Vela, Albert (Universitat Politècnica de Catalunya, 2019-01-28)
      Treball Final de Grau
      Accés obert
      Tractament de les dades generades a bord d'un nanosatèl·lit perquè aquestes siguin enviades de manera robusta a terra.

    • Space compression algorithms acceleration on embedded multi-core and GPU platforms 

      Jover Álvarez, Álvaro; Rodríguez Ferrández, Iván; Kosmidis, Leonidas; Steenari, David (Association for Computing Machinery (ACM), 2022)
      Comunicació de congrés
      Accés obert
      Future space missions will require increased on-board computing power to process and compress massive amounts of data. Consequently, embedded multi-core and GPU platforms are considered, which have been shown beneficial ...