Now showing items 21-40 of 210

  • An edge-stream computing infrastructure for real-time analysis of wearable sensors data 

    Greco, Luca; Ritrovato, Pierluigi; Xhafa Xhafa, Fatos (Elsevier, 2019-04)
    Article
    Restricted access - publisher's policy
    The fast development of IoT in general and wearable smart sensors in particular in the context of wellness and healthcare are demanding for definition of specific infrastructure supporting real time data analysis for anomaly ...
  • A new reliability-based data-driven approach to simulation-based models 

    Ayensa Jiménez, Jacobo; Doweidar, Mohamed Hamdy; Doblaré Castellano, Manuel (Barcelona Supercomputing Center, 2017-05-04)
    Conference report
    Open Access
    Data Science has burst into simulation-based en-gineering sciences with an impressive impulse. However, data are never uncertainty-free and a suitable approach is needed to face data measurement errors and their intrinsic ...
  • A New role of ontologies and advanced scientific visualization in big data analytics 

    Chuprina, Svetlana (Barcelona Supercomputing Center, 2016-09-10)
    Conference report
    Open Access
    Accessing and contextual semantic searching structured, semi-structured and unstructured information resources and their ontology based analysis in a uniform way across text-free Big Data query implementation is a main ...
  • An integration-oriented ontology to govern evolution in big data ecosystems 

    Nadal Francesch, Sergi; Romero Moral, Óscar; Abelló Gamazo, Alberto; Vassiliadis, Panos; Vansummeren, Stijn (CEUR-WS.org, 2017)
    Conference lecture
    Open Access
    Big Data architectures allow to flexibly store and process heterogeneous data, from multiple sources, in its original format. The structure of those data, commonly supplied by means of REST APIs, is continuously evolving, ...
  • An integration-oriented ontology to govern evolution in big data ecosystems 

    Nadal Francesch, Sergi; Romero Moral, Óscar; Abelló Gamazo, Alberto; Vassiliadis, Panos; Vansummeren, Stijn (2019-01)
    Article
    Restricted access - publisher's policy
    Big Data architectures allow to flexibly store and process heterogeneous data, from multiple sources, in their original format. The structure of those data, commonly supplied by means of REST APIs, is continuously evolving. ...
  • Apache Mahout’s k-Means vs. fuzzy k-Means performance evaluation 

    Xhafa Xhafa, Fatos; Bogza, Adriana; Caballé Llobet, Santiago; Barolli, Leonard (Institute of Electrical and Electronics Engineers (IEEE), 2016)
    Conference report
    Open Access
    The emergence of the Big Data as a disruptive technology for next generation of intelligent systems, has brought many issues of how to extract and make use of the knowledge obtained from the data within short times, limited ...
  • Aplicació als Smart Buildings 

    Garrido I Gallardo, Joel (Universitat Politècnica de Catalunya, 2018-06-21)
    Bachelor thesis
    Open Access
    Aquest projecte presenta l’estimació dels costos d’il·luminació d’un edifici d’oficines, així com la proposta de modificacions per poder ser més sostenible i reduir el consum econòmic i energètic de l’edifici mitjançant ...
  • Aplicación de técnicas de big data en validación de auditorías financieras 

    Calabro Sanchez, Domenico (Universitat Politècnica de Catalunya, 2018-10-15)
    Bachelor thesis
    Open Access
    This project is based on the creation of a work methodology for Audit based on Data Analytics. During the project, a work plan is developed to address the different cases that can be presented in the Audit, and later, three ...
  • Aplicación web para la gestión de información en materia de seguridad en una corporación 

    Valentí Mañé, Marcos (Universitat Politècnica de Catalunya, 2016-10-26)
    Bachelor thesis
    Restricted access - confidentiality agreement
  • A Quick View on Current Techniques and Machine Learning Algorithms for Big Data Analytics 

    Berral García, Josep Lluís (Institute of Electrical and Electronics Engineers (IEEE), 2016)
    Conference report
    Open Access
    Big-data is an excellent source of knowledge and information from our systems and clients, but dealing with such amount of data requires automation, and this brings us to data mining and machine leaming techniques. In ...
  • Arduino i l'internet de les coses aplicat a la domòtica. Una primera aproximació per a alumnes de 4rt de ESO 

    Sanàbria Ortega, Fernando Guillermo (Universitat Politècnica de Catalunya, 2017-06-22)
    Master thesis
    Open Access
    Aquest Treball Final de Màster (TFM) s'ha desenvolupat amb la finalitat de què sigui un treball el més transversal possible dins del àrea de Tecnologia per els alumnes de 4rt de ESO. La finalitat és els alumnes puguin ...
  • A resilient and distributed near real-time traffic forecasting application for Fog computing environments 

    Pérez, Juan Luis; Gutiérrez Torre, Alberto; Berral García, Josep Lluís; Carrera Pérez, David (Elsevier, 2018-10-01)
    Article
    Open Access
    In this paper we propose an architecture for a city-wide traffic modeling and prediction service based on the Fog Computing paradigm. The work assumes an scenario in which a number of distributed antennas receive data ...
  • A resilient and distributed near real-time traffic forecasting application for Fog computing environments 

    Pérez, Juan L.; Gutierrez-Torre, Alberto; Berral, Josep Ll.; Carrera, David (Elsevier, 2018-10)
    Article
    Open Access
    In this paper we propose an architecture for a city-wide traffic modeling and prediction service based on the Fog Computing paradigm. The work assumes an scenario in which a number of distributed antennas receive data ...
  • Arquitectura Big Data en Cloud per l'estudi del subministrament d'aigua 

    Moral Buendía, Jacobo (Universitat Politècnica de Catalunya, 2019-07-01)
    Bachelor thesis
    Open Access
    Big data y cloud son dos conceptos muy utilizados en el contexto de la ingeniería informática. En este trabajo diseño una arquitectura en cloud enfocada al tratamiento de big data e implemento, en la medida de lo posible, ...
  • A scalable synthetic traffic model of Graph500 for computer networks analysis 

    Fuentes Sáez, Pablo; Benito, Mariano; Vallejo, Enrique; Bosque Orero, José Luis; Beivide Palacio, Ramon; Anghel, Andreea; Rodríguez Herrera, Germán; Gusat, Mitch; Minkenberg, Cyriel; Valero Cortés, Mateo (2017-12-25)
    Article
    Open Access
    The Graph500 benchmark attempts to steer the design of High-Performance Computing systems to maximize the performance under memory-constricted application workloads. A realistic simulation of such benchmarks for architectural ...
  • A software reference architecture for semantic-aware big data systems 

    Nadal Francesch, Sergi; Herrero Otal, Víctor; Romero Moral, Óscar; Abelló Gamazo, Alberto; Franch Gutiérrez, Javier; Vansummeren, Stijn; Valerio, Danilo (2016-06-13)
    Article
    Open Access
    Context: Big Data systems are a class of software systems that ingest, store, process and serve massive amounts of heterogeneous data, from multiple sources. Despite their undisputed impact in current society, their ...
  • Atnight project, designing the nocturnal landscape collectively 

    Martinez-Diez, Pablo; Santamaria Varas, Mar (2016)
    Conference report
    Restricted access - publisher's policy
  • ATUN-HL: auto tuning of hybrid layouts using workload and data characteristics 

    Munir, Rana Faisal; Abelló Gamazo, Alberto; Romero Moral, Óscar; Thiele, Maik; Lehner, Wolfgang (2018)
    Conference report
    Open Access
    Ad-hoc analysis implies processing data in near real-time. Thus, raw data (i.e., neither normalized nor transformed) is typically dumped into a distributed engine, where it is generally stored into a hybrid layout. Hybrid ...
  • Automatic query driven data modelling in cassandra 

    Hernández, Roger; Becerra Fontal, Yolanda; Torres Viñals, Jordi; Ayguadé Parra, Eduard (Elsevier, 2015)
    Conference report
    Open Access
    Non-relational databases have recently been the preferred choice when it comes to dealing with BigData challenges, but their performance is very sensitive to the chosen data organisations. We have seen differences of over ...
  • Big Data a l’empresa: La seva situació actual i potencialitat de creixement a Espanya 

    De Pineda Pujols, Marc (Universitat Politècnica de Catalunya, 2014-06)
    Bachelor thesis
    Restricted access - author's decision
    En aquest projecte es troba l’estudi del concepte Big Data i es dóna una visió extensa del que significa. S’han estudiat les diferents tecnologies que ofereix Big Data i alguns dels sectors on aquesta tecnologia està més ...