Now showing items 1-20 of 37

    • Artificial neural networks as emerging tools for earthquake detection 

      Rojas, Otilio; Otero Calviño, Beatriz; Alvarado, Leonardo; Mus, Sergi; Tous Liesa, Rubén (2019)
      Article
      Open Access
      As seismic networks continue to spread and monitoring sensors become more ef¿cient, the abundance of data highly surpasses the processing capabilities of earthquake interpretation analysts. Earthquake catalogs are fundamental ...
    • Assessing the participatory design of a project-based course on computer network applications 

      Freitag, Fèlix; Tous Liesa, Rubén; Navarro Moldes, Leandro (Scitepress, 2019)
      Conference report
      Open Access
      New teaching methodologies which foster student involvement, such as project-based learning, are nowadays part of the study curriculum of many engineering schools. Project-based learning courses, however, often build upon ...
    • Automated curation of brand-related social media images with deep learning 

      Tous Liesa, Rubén; Gómez Parada, Mauro; Poveda, Jonatan; Cruz, Leonel; Wust, Otto; Makni, Mouna; Ayguadé Parra, Eduard (2018-10)
      Article
      Open Access
      This paper presents a work consisting in using deep convolutional neural networks (CNNs) to facilitate the curation of brand-related social media images. The final goal is to facilitate searching and discovering user-generated ...
    • CBIR - Content based information retrieval in Optical Biopsies 

      Tous Liesa, Rubén; Ferrer-Roca, Olga; Delgado Mercè, Jaime (2010)
      Conference report
      Restricted access - publisher's policy
      The present paper describes the design and usage of an Internet medical image search engine based on the queryby-example paradigm and the multimedia standard ISO-15938-12:2008. The system, which allows combining Content ...
    • Deep neural networks for earthquake detection and source region estimation in north-central Venezuela 

      Tous Liesa, Rubén; Alvarado Bermúdez, Leonardo; Otero Calviño, Beatriz; Cruz de la Cruz, Stalin Leonel; Rojas Ulacio, Otilio (2020-10-01)
      Article
      Open Access
      Reliable earthquake detection algorithms are necessary to properly analyze and catalog the continuously growing seismic records. We report the results of applying a deep convolutional neural network, called UPC‐UCV ...
    • Distributed training of deep neural networks with spark: The MareNostrum experience 

      Cruz, Leonel; Tous Liesa, Rubén; Otero Calviño, Beatriz (Elsevier, 2019-07-01)
      Article
      Open Access
      Deployment of a distributed deep learning technology stack on a large parallel system is a very complex process, involving the integration and configuration of several layers of both, general-purpose and custom software. ...
    • Dynamic configuration of partitioning in spark applications 

      Gounaris, Anastasios; Kougka, Georgia; Tous Liesa, Rubén; Tripiana, Carlos; Torres Viñals, Jordi (2017-07-01)
      Article
      Open Access
      Spark has become one of the main options for large-scale analytics running on top of shared-nothing clusters. This work aims to make a deep dive into the parallelism configuration and shed light on the behavior of parallel ...
    • Epicentral region estimation using convolutional neural networks 

      Cruz de la Cruz, Stalin Leonel; Tous Liesa, Rubén; Otero Calviño, Beatriz; Alvarado Bermúdez, Leonardo; Mus León, Sergi; Rojas Ulacio, Otilio Jose (Springer Nature, 2022)
      Conference report
      Open Access
      Recent works have assessed the capability of deep neural networks of estimating the epicentral source region of a seismic event from a single-station three-channel signal. In all the cases, the geographical partitioning ...
    • Examen Final 

      Gil, Marisa; Guerrero Zapata, Manel; Jiménez Castells, Marta; Jordán Fernández, Francisco; Macias López, Miquel; Monreal Arnal, Teresa; Otero Calviño, Beatriz; Rodríguez Luna, Eva; Tous Liesa, Rubén; Valverde Amador, Antonio Javier (Universitat Politècnica de Catalunya, 2018-01-12)
      Exam
      Restricted access to the UPC academic community
    • Examen Final 

      Gil Martín, Marçal; Guerrero Zapata, Josep Maria; Jiménez Castells, Marta; Jordán Fernández, Francisco; Macias López, Miquel; Monreal Arnal, Teresa; Otero Calviño, Beatriz; Tous Liesa, Rubén; Valverde Amador, Antonio Javier (Universitat Politècnica de Catalunya, 2019-01-17)
      Exam
      Restricted access to the UPC academic community
    • Examen Final 

      Gil, Marisa; Guerrero Zapata, Manel; Jordán Fernández, Francisco; Macia, Sandra; Monreal Arnal, Teresa; Otero Calviño, Beatriz; Tous Liesa, Rubén; Valverde Amador, Antonio Javier; Jiménez Castells, Marta (Universitat Politècnica de Catalunya, 2020-01-17)
      Exam
      Restricted access to the UPC academic community
    • Examen Final 

      Gil Martín, Marçal; Guerrero Zapata, Josep Maria; Jiménez Castells, Marta; Jordán Fernández, Francisco; Macias López, Miquel; Otero Calviño, Beatriz; Tous Liesa, Rubén; Valverde Amador, Antonio Javier (Universitat Politècnica de Catalunya, 2021-01-18)
      Exam
      Restricted access to the UPC academic community
    • Exploring image transformations with diffusion models: A survey of applications and implementation code 

      Arellano García, Silvia; Otero Calviño, Beatriz; Tous Liesa, Rubén (Springer, 2023)
      Conference report
      Restricted access - publisher's policy
      Diffusion Models have become increasingly popular in recent years and their applications span a wide range of fields. This survey focuses on the use of diffusion models in computer vision, specially in the branch of image ...
    • How MPEG Query Format enables advanced multimedia functionalities 

      Carreras Coch, Anna; Tous Liesa, Rubén; Delgado Mercè, Jaime (2009)
      Conference report
      Open Access
      In December 2008, ISO/IEC SC29WG11 (more commonly known as MPEG) published the ISO/IEC 15938-12 standard, i.e. the MPEG Query Format (MPQF), providing a uniform search&retrieval interface for multimedia repositories. While ...
    • Human pose completion in partial body camera shots 

      Tous Liesa, Rubén; Nin Guerrero, Jordi; Igual Muñoz, Laura (2023-07-28)
      Article
      Restricted access - publisher's policy
      Many actual images contain partial body camera shots, in which a significant part of the body is not visible. This issue is especially prevalent in film images, where less than 10% are full-body shots. Most 2D human pose ...
    • La Influencia del orden de las preguntas en los exámenes de primer curso 

      López Álvarez, David; Cortés Martínez, Jordi; Fernández Barta, Montserrat; Parcerisa Bundó, Joan Manuel; Tous Liesa, Rubén; Tubella Murgadas, Jordi (Universitat Jaume I. Escola Superior de Tecnologia i Ciències Experimentals, 2013-07-10)
      Conference report
      Open Access
      El orden de las preguntas en un examen no debería tener influencia en sus resultados. Sin embargo, los autores tenemos la sensación de que los estudiantes de primero suelen ser secuenciales a la hora de resolver los ...
    • JPSearch: new international standard providing interoperable framework for image search and sharing 

      Yoon, Kyoungro; Kim, Youngseop; Park, Je-Ho; Delgado Mercè, Jaime; Yamada, Akio; Dufaux, Frederic; Tous Liesa, Rubén (2012-08)
      Article
      Restricted access - publisher's policy
      For the last 15 years, there have been various research and great advances in the field of content-based search and retrieval of images. In this paper, we present an overview of the JPSearch Standard, which is a recently ...
    • Long short-term memory networks for earthquake detection in Venezuelan regions 

      Mus León, Sergi; Gutiérrez Escobar, Norma; Tous Liesa, Rubén; Otero Calviño, Beatriz; Cruz de la Cruz, Stalin Leonel; Llácer Giner, David; Alvarado Bermúdez, Leonardo; Rojas, Otilio (Springer, 2019)
      Conference lecture
      Open Access
      Reliable earthquake detection and location algorithms are necessary to properly catalog and analyze the continuously growing seismic records. This paper reports the results of applying Long Short-Term Memory (LSTM) networks ...
    • Low-cost training of image-to-image diffusion models with incremental learning and task/domain adaptation 

      Antona Pizà, Héctor; Otero Calviño, Beatriz; Tous Liesa, Rubén (2024-02-10)
      Article
      Open Access
      Diffusion models specialized in image-to-image translation tasks, like inpainting and colorization, have outperformed the state of the art, yet their computational requirements are exceptionally demanding. This study ...
    • Modelo en red de los contenidos mediáticos en la era de los dispositivos inteligentes 

      Morales Morante, Luís Fernando; Mas Manchón, Lluís; Tous Liesa, Rubén (2016-01-01)
      Article
      Open Access
      The changes in the information technologies of the last two decades, represented by the democratization of the Internet and the availability of portable and intelligent handhelds, is associated with new business, communication ...