Browsing by Subject "Data warehousing"

Now showing items 1-20 of 69

    • 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 framework for multidimensional indexes on distributed and highly-available data stores 

      Cugnasco, Cesare; Becerra Fontal, Yolanda (Barcelona Supercomputing Center, 2015-05-05)
      Conference report
      Open Access
      No-relational databases are nowadays a common solution when dealing with a huge data set and massive query workload. These systems have been redesigned from scratch in order to achieve scalability and availability at ...

    • A modularization proposal for goal-oriented analysis of data warehouses using I-star 

      Maté Morga, Alejandro; Trujillo Mondéjar, Juan Carlos; Franch Gutiérrez, Javier (Springer, 2011)
      Conference report
      Restricted access - publisher's policy
      The success rate of Data Warehouse (DW) development is improved by performing a requirements elicitation stage in which the users’ needs to be fulfilled by the DW are modeled. Currently, among the different proposals for ...

    • A new machine learning approach to support asset management in water distribution networks 

      Brucia, Paolo Gioele (Universitat Politècnica de Catalunya, 2022-01-31)
      Master thesis
      Open Access
      One of the main causes of the widespread problem of freshwater scarcity lies in unfruitful maintenance of distribution infrastructure, leading to failures with consequent waste of precious resources. It is estimated that ...

    • A requirement-driven approach to the design and evolution of data warehouses 

      Jovanovic, Petar; Romero Moral, Óscar; Simitsis, Alkis; Abelló Gamazo, Alberto; Mayorova, Daria (2014-08-01)
      Article
      Restricted access - publisher's policy
      Designing data warehouse (DW) systems in highly dynamic enterprise environments is not an easy task. At each moment, the multidimensional (MD) schema needs to satisfy the set of information requirements posed by the business ...

    • A Tool for integrating dynamic healthcare data sources 

      Zamani Forooshani, Meysam (Universitat Politècnica de Catalunya, 2020-06-22)
      Master thesis
      Open Access
      Currently, there is a growing interest in finding a comprehensive method in ETL process technology that can deal with healthcare data formats. Healthcare centers are very concerned about their sensitive information which ...

    • A unified view of data-intensive flows in business intelligence systems : a survey 

      Jovanovic, Petar; Romero Moral, Óscar; Abelló Gamazo, Alberto (2016-12)
      Article
      Open Access
      Data-intensive flows are central processes in today’s business intelligence (BI) systems, deploying different technologies to deliver data, from a multitude of data sources, in user-preferred and analysis-ready formats. ...

    • Adding semantic modules to improve goal-oriented analysis of data warehouses using I-star 

      Mate, Alejandro; Trujillo Mondejar, Juan Carlos; Franch Gutiérrez, Javier (2014-02-01)
      Article
      Open Access
      The success rate of data warehouse (DW) development is improved by performing a requirements elicitation stage in which the users' needs are modeled. Currently, among the different proposals for modeling requirements, there ...

    • An approach for alert raising in real-time data warehouses 

      López, Maximiliano Ariel; Nadal Francesch, Sergi; Djedaini, Mahfoud; Marcel, Patrick; Peralta, Verónika; Furtado, Pedro (2015)
      Conference report
      Open Access
      This work proposes an approach for alert raising within a real-time data warehouse environment. It is based on the calculation of confidence intervals for measures from historical facts. As new facts arrive to the data ...

    • Anàlisi d’ordres de treball 

      Ribalta Bargallò, Ricard (Universitat Politècnica de Catalunya, 2019-01-10)
      Bachelor thesis
      Restricted access - author's decision

    • Aplicació de gestió (ERP) de contactes i esdeveniments per l’EPSEVG 

      Escribano Gómez, Jesús Manuel (Universitat Politècnica de Catalunya, 2010-06-28)
      Master thesis (pre-Bologna period)
      Open Access
      Amb aquest projecte final de carrera es vol millorar la gestió dels contactes dels diferents usuaris de l’EPSEVG, així com facilitar la gestió i creació d’esdeveniments i campanyes Els treballadors de l’EPSEVG es relacionen ...

    • Bijoux : data generator for evaluating ETL process quality 

      Nakuçi, Emona; Theodorou, Vasileios; Jovanovic, Petar; Abelló Gamazo, Alberto (2014)
      Conference report
      Restricted access - publisher's policy
      Obtaining the right set of data for evaluating the fulfillment of different quality standards in the extract-transform-load (ETL) process design is rather challenging. First, the real data might be out of reach due to ...

    • Building a Data Warehouse for the global WHO information and surveillance system to control/eliminate Chagas disease 

      Viñas Navas, Jaume (Universitat Politècnica de Catalunya, 2014-01-17)
      Master thesis (pre-Bologna period)
      Open Access
      The objective of the project is to document the software requirements to build the Data Warehouse of the global Chagas disease. The main tasks under the project are the definition of the software requirements specification ...

    • Cronometraje y clasificación de rallies slot 

      De Haro Ruiz, Pablo; Llinàs Gea, Roger; Mazariegos Canellas, Salvador (Universitat Politècnica de Catalunya, 2005-04)
      Master thesis (pre-Bologna period)
      Restricted access - author's decision
      La finalidad de este proyecto final de carrera ha sido la de diseñar e implementar un sistema de gestión y medición de tiempos para los campeonatos de Rally Slot. El diseño de dicho sistema se realiza con el fin de ser ...

    • Current/historical: An efficient bitemporal storage structure for data warehousing 

      Martín Escofet, Carme; Montero, O; Surroca, C (2005-11)
      Research report
      Open Access
      A Data Warehouse is defined as a time variant set of non-volatile data. This can be easily related to temporal database concepts (i.e. a database supporting Valid Time and Transaction Time is known as a bitemporal database). ...

    • Data engineering for cost reduction, efficiency improvement, and business intelligence for an e-commerce company 

      Carrillo Alza, Alex (Universitat Politècnica de Catalunya, 2021-06-30)
      Bachelor thesis
      Restricted access - confidentiality agreement

    • Data setup for water distribution system supervision 

      Pérez Magrané, Ramon; Grau Torrent, Sergi; Jimenez, Victor; Martínez, Xavier; Tomas, Ricard (2017)
      Conference report
      Open Access
      The availability of on-line data coming from the water distribution systems (WDS) allows the monitoring of such critical infrastructures. Nevertheless the huge amount of data that come to the control centre implies an ...

    • Data warehousing & business intelligence to enhance the analysis of a worldwide IT consulting project. 

      Galdón Muñoz, Pablo (Universitat Politècnica de Catalunya, 2015-09-15)
      Bachelor thesis
      Restricted access - author's decision
      Covenantee:   Everis
      This project has been set in an IT Consulting atmosphere. It has been developed an agile application that provides a global overview from any point of view. This has contributed to enhance internal analysis and has become ...

    • Desarrollo de una aplicación para el control de la productividad planificado contra real 

      Hernando Puerta, Enric (Universitat Politècnica de Catalunya, 2021-06-30)
      Bachelor thesis
      Restricted access - confidentiality agreement

    • Development of a data monitoring platform for low emission zones 

      Esquina Muñoz, Daniel (Universitat Politècnica de Catalunya, 2023-06-29)
      Master thesis
      Open Access
      Covenantee:   DOYMO
      The detrimental effects of pollution on human health and the environment have escalated in recent years, prompting urgent action. Concerns surrounding air quality and emissions have led to the establishment of low emission ...