Ara es mostren els items 54-73 de 103

    • Hecuba: NoSql made easy 

      Alomar, Guillem; Becerra Fontal, Yolanda; Torres Viñals, Jordi (Barcelona Supercomputing Center, 2015-05-05)
      Text en actes de congrés
      Accés obert
      Non-relational databases are nowadays a common solution when dealing with huge data set and massive query work load. These systems have been redesigned from scratch in order to achieve scalability and availability at ...
    • Heterogeneous QoS resource manager with prediction 

      Nou Castell, Ramon; Torres Viñals, Jordi (IARIA, 2009)
      Text en actes de congrés
      Accés obert
      As long as computers continue to get more CPU processing power, data centers need to optimize their power usage. We can do this and maintain the same complexity level as before by using virtualized environments. We can put ...
    • Hierarchical object detection with deep reinforcement learning 

      Bellver, Míriam; Giró Nieto, Xavier; Marqués Acosta, Fernando; Torres Viñals, Jordi (IOS Press, 2017-11-23)
      Capítol de llibre
      Accés restringit per política de l'editorial
      Deep learning and image processing are two areas of great interest to academics and industry professionals alike. The areas of application of these two disciplines range widely, encompassing fields such as medicine, robotics, ...
    • How2Sign: A large-scale multimodal dataset for continuous American sign language 

      Cardoso Duarte, Amanda; Palaskar, Shruti; Ventura Ripol, Lucas; Ghadiyaram, Deepti; DeHaan, Kenneth; Metze, Florian; Torres Viñals, Jordi; Giró Nieto, Xavier (Institute of Electrical and Electronics Engineers (IEEE), 2021)
      Comunicació de congrés
      Accés obert
      One of the factors that have hindered progress in the areas of sign language recognition, translation, and production is the absence of large annotated datasets. Towards this end, we introduce How2Sign, a multimodal and ...
    • Improving accuracy and speeding up document image classification through parallel systems 

      Ferrando Monsonís, Javier; Domínguez, Juan Luis; Torres Viñals, Jordi; García Fuentes, Raul; García Doménech, David; Garrido Miñambres, Daniel; Cortada, Jordi; Valero Cortés, Mateo (Springer, 2020)
      Text en actes de congrés
      Accés obert
      This paper presents a study showing the benefits of the EfficientNet models compared with heavier Convolutional Neural Networks (CNNs) in the Document Classification task, essential problem in the digitalization process ...
    • Improving web server performance through main memory compression 

      Beltran Querol, Vicenç; Torres Viñals, Jordi; Ayguadé Parra, Eduard (IEEE Computer Society, 2008)
      Comunicació de congrés
      Accés obert
      Current web servers are highly multithreaded applications whose scalability benefits from the current multicore/multiprocessor trend. However, some workloads can not capitalize on this because their performance is limited by ...
    • Instrumentation environment for Java threaded applications 

      Guitart Fernández, Jordi; Torres Viñals, Jordi; Ayguadé Parra, Eduard; Oliver, Jose; Labarta Mancho, Jesús José (XI Jornadas de Paralelismo, 2000)
      Text en actes de congrés
      Accés restringit per política de l'editorial
      The rapid maturing process of the Java technology is encouraging users to develope of portable applications using the Java language. As an important part of the definition of the Java language, the use of threads is becoming ...
    • Introducing Virtual Execution Environment for Application Lifecycle Management and SLA-Driven Resource Distribution within Service Providers 

      Goiri Presa, Íñigo; Julià, Ferran; Ejarque, Jorge; Palol, Marc de; Badia Sala, Rosa Maria; Guitart Fernández, Jordi; Torres Viñals, Jordi (IEEE Computer Society Publications, 2009-07)
      Text en actes de congrés
      Accés obert
      Resource management is a key challenge that service providers must adequately face in order to ensure their profitability. This paper describes a proof-of-concept framework for facilitating resource management in service ...
    • J2EE instrumentation for software aging root cause application component determination with AspectJ 

      Alonso López, Javier; Torres Viñals, Jordi; Berral García, Josep Lluís; Gavaldà Mestre, Ricard (IEEE Computer Society Publications, 2010-04-23)
      Text en actes de congrés
      Accés obert
      Unplanned system outages have a negative impact on company revenues and image. While the last decades have seen a lot of efforts from industry and academia to avoid them, they still happen and their impact is increasing. ...
    • Java instrumentation suite: accurate analysis of Java threaded applications 

      Guitart Fernández, Jordi; Torres Viñals, Jordi; Ayguadé Parra, Eduard; Oliver, Jose; Labarta Mancho, Jesús José (2000)
      Text en actes de congrés
      Accés obert
      The rapid maturing process of the Java technology is encouraging users the development of portable applications using the Java language. As an important part of the definition of the Java language, the use of threads is ...
    • "Living in Barcelona" Li-BCN workload 2010 

      Berral García, Josep Lluís; Gavaldà Mestre, Ricard; Torres Viñals, Jordi (2011)
      Report de recerca
      Accés obert
      Nowadays lots of Internet users are clients of web hosting companies, willing to offer their web services, store their content, or just publish their web sites on the network. This has made the hosting companies to use big ...
    • Loop parallelization: revisiting framework of unimodular transformations 

      Torres Viñals, Jordi; Ayguadé Parra, Eduard; Labarta Mancho, Jesús José; Valero Cortés, Mateo (Institute of Electrical and Electronics Engineers (IEEE), 1996)
      Text en actes de congrés
      Accés obert
      The paper extends the framework of linear loop transformations adding a new nonlinear step at the transformation process. The current framework of linear loop transformation cannot identify a significant fraction of ...
    • Managing SLAs of heterogeneous workloads using dynamic application placement 

      Carrera Pérez, David; Steinder, Malgorzata; Whalley, Ian; Torres Viñals, Jordi; Ayguadé Parra, Eduard (ACM Press, NY, 2008)
      Text en actes de congrés
      Accés obert
      In this paper we address the problem of managing heterogeneous workloads in a virtualized data center. We consider two different workloads: transactional applications and long-running jobs. We present a technique that ...
    • Mask-guided sample selection for semi-supervised instance segmentation 

      Bellver Bueno, Míriam; Salvador Aguilera, Amaia; Torres Viñals, Jordi; Giró Nieto, Xavier (2020-07-05)
      Article
      Accés obert
      Image segmentation methods are usually trained with pixel-level annotations, which require significant human effort to collect. Weakly-supervised pipelines are the most common solution to address this constraint because ...
    • Matching renewable energy supply and demand in green datacenters 

      Goiri, Iñigo; Haque, Md E.; Le, Kien; Beauchea, Ryan; Nguyen, Thu D.; Guitart Fernández, Jordi; Torres Viñals, Jordi; Bianchini, Ricardo (Elsevier, 2015-02-01)
      Article
      Accés obert
      In this paper, we propose GreenSlot, a scheduler for parallel batch jobs in a datacenter powered by a photovoltaic solar array and the electrical grid (as a backup). GreenSlot predicts the amount of solar energy that will ...
    • Maximizing revenue in Grid markets using an economically enhanced resource manager 

      Macías Lloret, Mario; Rana, Omer; Smith, Garry; Guitart Fernández, Jordi; Torres Viñals, Jordi (2008-09-01)
      Article
      Accés restringit per política de l'editorial
      Traditional resource management has had as its main objective the optimization of throughput, based on parameters such as CPU, memory, and network bandwidth. With the appearance of Grid markets, new variables that determine ...
    • Mining urban events from the tweet stream through a probabilistic mixture model 

      Capdevila Pujol, Joan; Cerquides, Jesús; Torres Viñals, Jordi (2017-08-30)
      Article
      Accés obert
      The geographical identification of content in Social Networks have enabled to bridge the gap between online social platforms and the physical world. Although vast amounts of data in such networks are due to breaking news ...
    • Model-based ML for retrospective event detection 

      Capdevila Pujol, Joan; Cerquides, Jesús; Torres Viñals, Jordi (Barcelona Supercomputing Center, 2018-04-24)
      Text en actes de congrés
      Accés obert
    • Modeling cloud resources using machine learning 

      Berral García, Josep Lluís; Gavaldà Mestre, Ricard; Torres Viñals, Jordi (2013)
      Report de recerca
      Accés obert
      Cloud computing is a new Internet infrastructure paradigm where management optimization has become a challenge to be solved, as all current management systems are human-driven or ad-hoc automatic systems that must be tuned ...
    • Multifaceted resource management for dealing with heterogeneous workloads in virtualized data centers 

      Goiri Presa, Íñigo; Fitó, Josep Oriol; Julià Masso, Ferran; Nou Castell, Ramon; Berral García, Josep Lluís; Guitart Fernández, Jordi; Torres Viñals, Jordi (IEEE Computer Society Publications, 2010)
      Comunicació de congrés
      Accés obert
      As long as virtualization has been introduced in data centers, it has been opening new chances for resource management. Now, it is not just used as a tool for consolidating underused nodes and save power, it also allows ...