Exploració per tema "Àrees temàtiques de la UPC::Informàtica::Sistemes d'informació::Emmagatzematge i recuperació de la informació"

Ara es mostren els items 1-20 de 309

    • 3D hierarchical optimization for multi-view depth map coding 

      Maceira, Marc; Varas, David; Morros Rubió, Josep Ramon; Ruiz Hidalgo, Javier; Marqués Acosta, Fernando (2017-11-28)
      Article
      Accés obert
      Depth data has a widespread use since the popularity of high resolution 3D sensors. In multi-view sequences, depth information is used to supplement the color data of each view. This article proposes a joint encoding of ...

    • A cost-based storage format selector for materialized results in big data frameworks 

      Munir, Rana Faisal; Abelló Gamazo, Alberto; Romero Moral, Óscar; Thiele, Maik; Lehner, Wolfgang (2019-05-08)
      Article
      Accés obert
      Modern big data frameworks (such as Hadoop and Spark) allow multiple users to do large-scale analysis simultaneously, by deploying data-intensive workflows (DIWs). These DIWs of different users share many common tasks (i.e, ...

    • A holistic scalability strategy for time series databases following cascading polyglot persistence 

      García Calatrava, Carlos; Becerra Fontal, Yolanda; Cucchietti, Fernando (Multidisciplinary Digital Publishing Institute (MDPI), 2022-08-18)
      Article
      Accés obert
      Time series databases aim to handle big amounts of data in a fast way, both when introducing new data to the system, and when retrieving it later on. However, depending on the scenario in which these databases participate, ...

    • A Privacy-Preserving Architecture for the Semantic Web Based on Tag Suppression 

      Parra, Javier; Rebollo Monedero, David; Forné Muñoz, Jorge (2010-09)
      Article
      Accés restringit per política de l'editorial
      We propose an architecture that preserves user privacy in the semantic Web via tag suppression. In tag suppression, users may wish to tag some resources and refrain from tagging some others in order to hinder privacy ...

    • A resource identity management strategy for combined fog-to-cloud systems 

      Gómez Cárdenas, Alejandro; Masip Bruin, Xavier; Marín Tordera, Eva; Kahvazadeh, Sarang; García Almiñana, Jordi (2018)
      Text en actes de congrés
      Accés restringit per política de l'editorial
      Fog-to-Cloud (F2C) is an emerging architecture intended to manage the resources continuum from far datacenters up to the near edge, putting together the cloud and fog concepts. It aims to obtain both, an efficient utilization ...

    • A system of scripts to increase the efficiency of disk provisioning in a SAN 

      Ramadan Delgado, Malek Mahmud (Universitat Politècnica de Catalunya, 2012-05-18)
      Projecte Final de Màster Oficial
      Accés restringit per decisió de l'autor
      [ANGLÈS] To improve the process of provisioning in a storage subdivision of T-systems Iberia that deals with a large client, which will in turn improve their performance rates, enhance error detection and increase workflow.

    • A tool for task assigment with performance depending on the number of repetitions 

      Arreba Garcia-Abad, Andrea (Universitat Politècnica de Catalunya, 2008-02-04)
      Projecte/Treball Final de Carrera
      Accés obert
      This project is part of a research project of the Organization Department of Corporations of the Polytechnic University of Catalonia (UPC) about assignment of tasks and learning curves, taking into account the effect of ...

    • A view of the future of memory technologies and systems 

      Pawlowski, J. Thomas (Barcelona Supercomputing Center, 2019)
      Altres
      Accés obert

    • AbacusFS integrated storage and computational platform 

      Nuhic, Isak; Šterk, Marjan; Cortés, Toni (Institute of Electrical and Electronics Engineers (IEEE), 2012)
      Text en actes de congrés
      Accés obert
      Today's applications, especially those in the scientific community, deal with an ever growing amount of data. Among the problems that arise from this explosion of data are how to organize the data so that the information ...

    • Ad hoc file systems for high-performance computing 

      Brinkmann, Andre; Mohror, Kathryn; Yu, Weikuan; Carns, Philip; Cortés, Toni; Klasky, Scott A.; Miranda Bueno, Alberto; Pfreundt, Franz-Josef; Ross, Robert B.; Vef, Marc-André (2020-01-17)
      Article
      Accés obert
      Storage backends of parallel compute clusters are still based mostly on magnetic disks, while newer and faster storage technologies such as flash-based SSDs or non-volatile random access memory (NVRAM) are deployed within ...

    • Adaptació de l’eina Trac a la gestió de projectes acadèmics 

      Lapuente Ferran, Raimon (Universitat Politècnica de Catalunya, 2010-06-30)
      Projecte/Treball Final de Carrera
      Accés obert
      Aquest projecte descriu la tasca realitzada per mitjà de la qual, s'han obtingut la integració de dos sistemes: un d'ensenyament i un de gestió de projectes. S'han generat un conjunt de Web Services sobre una aplicació de ...

    • Advanced pattern based memory controller for FPGA based HPC applications 

      Hussain, Tassadaq; Palomar Pérez, Óscar; Unsal, Osman Sabri; Cristal Kestelman, Adrián; Ayguadé Parra, Eduard; Valero Cortés, Mateo (Institute of Electrical and Electronics Engineers (IEEE), 2014)
      Text en actes de congrés
      Accés restringit per política de l'editorial
      The ever-increasing complexity of high-performance computing applications limits performance due to memory constraints in FPGAs. To address this issue, we propose the Advanced Pattern based Memory Controller (APMC), which ...

    • AETAS: A system for semanticizing temporal expressions from unstructured contents 

      Ardalan, Zagros; Martín Escofet, Carme; Padró, Lluís (Springer, 2015)
      Text en actes de congrés
      Accés restringit per política de l'editorial
      AETAS is an online tool for converting text into RDF linked data with resolution of temporal expressions. AETAS follows fully SOA architecture and is accessible via web-service. It implements a novel approach for semantic ...

    • AMMC: advance multi-core memory controller 

      Hussain, Tassadaq; Palomar Pérez, Óscar; Unsal, Osman Sabri; Cristal Kestelman, Adrián; Ayguadé Parra, Eduard; Valero Cortés, Mateo (Institute of Electrical and Electronics Engineers (IEEE), 2014)
      Comunicació de congrés
      Accés obert
      In this work, we propose an efficient scheduler and intelligent memory manager known as AMMC (Advanced Multi-Core Memory Controller), which proficiently handles data movement and computational tasks. The proposed AMMC ...

    • Ampliación del sistema de información fiscal de una gran empresa del sector energético 

      Duarte Diez, Octavi (Universitat Politècnica de Catalunya, 2013-02-17)
      Projecte/Treball Final de Carrera
      Accés restringit per acord de confidencialitat

    • An analysis of factors used in search engine ranking 

      Bifet Figuerol, Albert Carles; Castillo, Carlos; Chirita, Paul-Alexandru; Weber, Ingmar (2005-09)
      Report de recerca
      Accés obert
      This paper investigates the influence of different page features on the ranking of search engine results. We use Google (via its API) as our testbed and analyze the result rankings for several queries of different categories ...

    • An automatic song annotation system 

      Zeller Sancho, Irene (Universitat Politècnica de Catalunya, 2009)
      Projecte/Treball Final de Carrera
      Accés obert
      The amount of multimedia content in the audiovisual sector, as well as on the Internet, is increasing a lot, and Music is one of the most outstanding forms of multimedia content requested by users. Every year, new songs, ...

    • An input and output Excel file for a material supply assignment model 

      Fabregat Corominas, Sergi (Universitat Politècnica de Catalunya / Universiteit Gent, 2011)
      Projecte/Treball Final de Carrera
      Accés obert
      Objective 1: To develop a work tool for companies that are using the mathematical model designed by dr. Veronique Limère. This tool has to targets: On the one hand, it has to be able to obtain different results depending ...

    • An IR-based strategy for supporting Chinese-Portuguese translation services in off-line model 

      Centelles, Jordi; Ruiz Costa-Jussà, Marta; Banchs Martínez, Rafael Enrique; Gelbukh, Alexander (2014-04-01)
      Article
      Accés restringit per política de l'editorial
      This paper describes an Information Retrieval engine that is used to support our Chinese-Portuguese machine translation services when no internet connection is available. Our mobile translation app, which is deployed on ...

    • Analysis and comparison of text similarity measures 

      Gómez Sánchez, Joaquim (Universitat Politècnica de Catalunya, 2021-01-25)
      Treball Final de Grau
      Accés obert
      Hoy en día la generación de información en formato textual tiene un crecimiento exponencial. Todos los días se escriben informes, se hacen posts en blogs, se publican entradas rápidas en redes sociales o se genera información ...