Now showing items 1-20 of 69

    • A discussion on the design of graph database benchmarks 

      Domínguez Sal, David; Martínez Bazán, Norbert; Muntés Mulero, Víctor; Baleta Ferrer, Pedro; Larriba Pey, Josep (2011)
      Article
      Open Access
      Graph Database Management systems (GDBs) are gaining popularity. They are used to analyze huge graph datasets that are naturally appearing in many application areas to model interrelated data. The objective of this paper ...
    • A framework for building OLAP cubes on graphs 

      Ghrab, Amine; Romero Moral, Óscar; Skhiri, Sabri; Vaisman, Alejandro; Zimányi, Esteban (Springer, 2015)
      Conference report
      Open Access
      Graphs are widespread structures providing a powerful abstraction for modeling networked data. Large and complex graphs have emerged in various domains such as social networks, bioinformatics, and chemical data. However, ...
    • A model for a multiresolution time series database system 

      Llusà Serra, Aleix; Escobet Canal, Teresa; Vila Marta, Sebastià (WSEAS Press, 2013)
      Conference report
      Open Access
      In this paper we propose a model for multiresolution time series database management systems. Thismodel stores compactly a time series and manages consistently its temporal dimension. This is achieved byextracting different ...
    • Algorithms for Process Conformance and Process Refinement 

      Muñoz-Gama, Jorge (Universitat Politècnica de Catalunya, 2010-09)
      Master thesis
      Open Access
      Process Conformance is a crucial step in the area of Process Mining: the adequacy of a model derived from applying a discovery algorithm to a log must be certified before making further decisions that affect the system ...
    • ALOJA: A benchmarking and predictive platform for big data performance analysis 

      Poggi, Nicolas; Berral García, Josep Lluís; Carrera Pérez, David (Springer, 2016)
      Conference report
      Open Access
      The main goals of the ALOJA research project from BSC-MSR, are to explore and automate the characterization of cost-effectivenessof Big Data deployments. The development of the project over its first year, has resulted in ...
    • An empirical evaluation of High-Level Synthesis languages and tools for database acceleration 

      Arcas Abella, Oriol; Ndu, Geoffrey; Sönmez, Nehir; Ghasempour, Mohsen; Armejach, Adrià; Navaridas, Javier; Song, Wei; Mawer, John; Cristal Kestelman, Adrián; Lujan, Mikel (Institute of Electrical and Electronics Engineers (IEEE), 2014)
      Conference report
      Open Access
      High Level Synthesis (HLS) languages and tools are emerging as the most promising technique to make FPGAs more accessible to software developers. Nevertheless, picking the most suitable HLS for a certain class of algorithms ...
    • Análisis y optimización del modelo de negocio de una web de tráfico consolidado 

      Òliva Martínez, Pol (Universitat Politècnica de Catalunya, 2015-06)
      Bachelor thesis
      Open Access
      El presente trabajo cubre el proceso de revisión y análisis de un negocio electrónico (e-Business), cuyo objetivo es la creación de contactos de compra-venta al por mayor, para determinar un conjunto de acciones ...
    • Aplicació de tècniques de gestió de processos de negoci per resoldre processos de migració de dades 

      Sanchez Ojeda, Natalia (Universitat Politècnica de Catalunya, 2012-01-20)
      Master thesis (pre-Bologna period)
      Open Access
      Català: En aquest projecte es pretèn estudiar la metodologia de gestió de processos de negoci i la seva possible aplicabilitat per resoldre satisfactòriament tasques de migració de dades. Consta de dues parts, una d'estudi ...
    • Aplicación Web de la bolsa de trabajo del Tecnocampus 

      Castillo Sánchez, Víctor (Universitat Politècnica de Catalunya, 2011)
      Master thesis (pre-Bologna period)
      Open Access
      Este proyecto es la segunda fase de la aplicación web de la Bolsa de Trabajo del Tecnocampus. En esta segunda fase se ha mejorado el código y se ha ampliado de forma que se pueda gestionar completamente, desde que un ...
    • Asignación de recursos de mantenimiento y reparación a puntos de incidencia: un caso real 

      García Cervilla, Inmaculada (Universitat Politècnica de Catalunya, 2013-06)
      Master thesis (pre-Bologna period)
      Restricted access - author's decision
      En el presente proyecto se diseña un procedimiento de asignación de técnicos de cajeros automáticos a puntos que necesitan de asistencia. A lo largo del tiempo se produce una gran cantidad de avisos de cajeros que deben ...
    • Automatic query driven data modelling in Cassandra 

      Hernandez, Roger; Becerra Fontal, Yolanda; Torres Viñals, Jordi; Ayguadé Parra, Eduard (Barcelona Supercomputing Center, 2015-05-05)
      Conference report
      Open Access
      Non-relational databases have recently been the preferred choice when it comes to dealing with Big Data challenges, but their performance is very sensitive to the chosen data organisations. We have seen differences of ...
    • Bases de datos en dispositivos móviles: API de SQL para J2ME 

      Vigil Díaz, Yolanda (Universitat Politècnica de Catalunya, 2007-01-30)
      Master thesis (pre-Bologna period)
      Open Access
    • Características de los SGBD del mercado 

      Camps Paré, Rafael (Asociación de Técnicos de Informática, 1976-09)
      Article
      Open Access
    • characterization of order-like dependencies with formal concept analysis 

      Baixeries i Juvillà, Jaume; Napoli, Amedeo; Kaytoue, Mehdi; Codecedo, Victor (2016)
      Conference report
      Open Access
      Functional Dependencies (FDs) play a key role in many fields of the relational database model, one of the most widely used database systems. FDs have also been applied in data analysis, data quality, knowledge discovery ...
    • Characterizing approximate-matching dependencies in formal concept analysis with pattern structures 

      Baixeries i Juvillà, Jaume; Codocedo, Victor; Kaytoue, Mehdi; Napoli, Amedeo (2018-04-26)
      Article
      Open Access
      Functional dependencies (FDs) provide valuable knowledge on the relations between attributes of a data table. A functional dependency holds when the values of an attribute can be determined by another. It has been shown ...
    • Characterizing functional dependencies in formal concept analysis with pattern structures 

      Baixeries i Juvillà, Jaume; Kaytoue, Mehdi; Napoli, Amedeo (2014-01-29)
      Article
      Restricted access - publisher's policy
      Computing functional dependencies from a relation is an important database topic, with many applications in database management, reverse engineering and query optimization. Whereas it has been deeply investigated in those ...
    • Computational improvements in parallelized k-anonymous microaggregation of large databases 

      Mezher, Ahmad Mohamad; Garcia Alvarez, Alejandro; Rebollo Monedero, David; Forné Muñoz, Jorge (2017)
      Conference report
      Restricted access - publisher's policy
      The technical contents of this paper fall within the field of statistical disclosure control (SDC), which concerns the postprocessing of the demographic portion of the statistical results of surveys containing sensitive ...
    • Coupling databases and advanced analytic tools (R) 

      Seakomo, Saviour Sedem Kofi (Universitat Politècnica de Catalunya, 2014-07)
      Master thesis
      Open Access
      Today, several contemporary organizations collect various kinds of data, creating large data repositories. But the capacity to perform advanced analytics over these large amount of data stored in databases remains a ...
    • Creació d'una pàgina web i aplicació mòbil 

      Vilardell González, Joel (Universitat Politècnica de Catalunya, 2012)
      Master thesis (pre-Bologna period)
      Restricted access - confidentiality agreement
    • Data engineering for data science: two sides of the same coin 

      Romero Moral, Óscar; Wrembel, Robert (Springer, 2020)
      Conference report
      Open Access
      A de facto technological standard of data science is based on notebooks (e.g., Jupyter), which provide an integrated environment to execute data workflows in different languages. However, from a data engineering point of ...