Now showing items 1-20 of 64

  • 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, ...
  • 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 ...
  • 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 ...
  • 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 ...
  • 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
  • Database Engineer tasks to certify a consistent and healthy Data Base 

    Garcia-luengo Lluch, Laia; Ferreyra Soriano, Stella Maris (Universitat Politècnica de Catalunya, 2018-02-23)
    Bachelor thesis
    Restricted access - author's decision
    Covenantee:  HERE Technologies
    The goal of this “Trabajo final de Grado” is to highlight part of the responsibilities and daily tasks a Database Engineer is in charge to support the permanent update/expansion of a database with global specifications ...
  • Database Integrated Analytics Using R: Initial Experiences with SQL-Server + R 

    Berrall, Josep Ll.; Poggi, Nicolas (Institute of Electrical and Electronics Engineers (IEEE), 2017-02-02)
    Conference lecture
    Open Access
    Most data scientists use nowadays functional or semi-functional languages like SQL, Scala or R to treat data, obtained directly from databases. Such process requires to fetch data, process it, then store again, and such ...