Departament de Tecnologies de la Informació i les Comunicacions: Recent submissions

  • Bellalta, Boris; Daza, Vanesa; Oliver Riera, Miquel (Institute of Electrical and Electronics Engineers (IEEE), 2011)
    A queueing model for Multi-rate Multi-user MIMO systems is presented. The model is built upon the assumption that the probability distribution of available destinations among the buffered frames at the Base Station (BS) ...
  • Ríssola, Esteban A.; Ramíırez-Cifuentes, Diana; Freire, Ana; Crestani, Fabio (ACL (Association for Computational Linguistics), 2019)
    This paper describes the participation of the USI-UPF team at the shared task of the 2019 Computational Linguistics and Clinical Psychology Workshop (CLPsych2019). The goal is to assess the degree of suicide risk of ...
  • Ramíırez-Cifuentes, Diana; Largeron, Christine; Tissier, Julien; Freire, Ana; Baeza-Yates, Ricardo (Springer, 2020)
    Anorexia Nervosa (AN) is a serious mental disorder that has been proved to be traceable on social media through the analysis of users’ written posts. Here we present an approach to generate word embeddings enhanced for ...
  • Wilhelmi Roca, Francesc; Barrachina Muñoz, Sergio; Bellalta, Boris; Cano Bastidas, Cristina; Jonsson, Anders; Ram, Vishnu (Institute of Electrical and Electronics Engineers (IEEE), 2020)
    Lots of hopes have been placed on machine learning (ML) as a key enabler of future wireless networks. By taking advantage of large volumes of data, ML is expected to deal with the ever-increasing complexity of networking ...
  • Ponce-Alvarez, Adrián; Mochol, Gabriela; Hermoso Mendizábal, Ainhoa; De la Rocha, Jaime; Deco, Gustavo (eLife, 2020)
    Previous research showed that spontaneous neuronal activity presents sloppiness: the collective behavior is strongly determined by a small number of parameter combinations, defined as ‘stiff’ dimensions, while it is ...
  • Vazquez-Corral, Javier; Finlayson, Graham D.; Bertalmío, Marcelo (Optical Society of America (OSA), 2020)
    Images captured under hazy conditions (e.g. fog, air pollution) usually present faded colors and loss of contrast. To improve their visibility, a process called image dehazing can be applied. Some of the most successful ...
  • Gilson, Matthieu; Zamora-López, Gorka; Pallarés, Vicente; Adhikari, Mohit H. (MIT Press, 2020)
    Neuroimaging techniques are now widely used to study human cognition. The functional associations between brain areas have become a standard proxy to describe how cognitive processes are distributed across the brain network. ...
  • Padilla, Nelly; Saenger, Victor M.; van Hartevelt, Tim J.; Fernandes, Henrique M.; Lennartsson, Finn; Andersson, Jesper L. R.; Kringelbach, Morten L.; Deco, Gustavo; Åden, Ulrika (Oxford University Press, 2019)
    The brain operates at a critical point that is balanced between order and disorder. Even during rest, unstable periods of random behavior are interspersed with stable periods of balanced activity patterns that support ...
  • Colombaro, Ivano; Font Segura, Josep; Martinez, Alfonso (Springer, 2020)
    This paper presents an exterior-algebra generalization of electromagnetic fields and source currents as multivectors of grades r and r−1, respectively, in a flat space-time with n space and k time dimensions. Formulas for ...
  • Won, Minz; Chun, Sanghyuk; Nieto Caballero, Oriol (Institute of Electrical and Electronics Engineers (IEEE), 2020)
    We introduce a trainable front-end module for audio repre- sentation learning that exploits the inherent harmonic struc- ture of audio signals. The proposed architecture, composed of a set of filters, compels the ...
  • Barceló Vicens, Jaume; Bellalta, Boris; Cano Bastidas, Cristina; Faridi, Azadeh; Oliver, Miquel (Springer, 2014)
    This paper introduces a protocol that distributively constructs a collision-free schedule for multi-hop packet radio networks in the presence of hidden terminals. As a preliminary step, each wireless station computes the ...
  • Adame, Toni; Bel, Albert; Bellalta, Boris; Barceló Vicens, Jaume; Oliver, Miquel (Institute of Electrical and Electronics Engineers (IEEE), 2014)
    M2M communications are positioned to be one of the fastest growing technology segments in the next decade. Sensor and actuator networks connect communication machines and devices so that they automatically transmit ...
  • Liao, Ruizhi; Bellalta, Boris; Cao, Trang Minh; Barceló Vicens, Jaume; Oliver, Miquel (Springer, 2015)
    Due to the dominance of the downlink traffic in Wireless Local Area Networks (WLANs), a large number of previous research efforts have been put to enhance the downlink transmission, namely, from the Access Point (AP) to ...
  • AlSkaif, Tarek; Guerrero Zapata, Manel; Bellalta, Boris (Elsevier, 2015)
    In the area of Wireless Sensor Networks (WSNs), improving energy efficiency and network lifetime is one of the most important and challenging issues. Most of the considered WSNs are formed by nodes with limited resources, ...
  • Serra, Xavier (Audio Engineering Society, 2014)
    A fundamental concern in music information research is the use of appropriate data sets, research corpora, from which to perform the needed data processing tasks. These corpora have to be suited for the specific research ...
  • Bellalta, Boris; Checco, Alessandro; Zocca, Alessandro; Barceló Vicens, Jaume (Institute of Electrical and Electronics Engineers (IEEE), 2016)
    Next-generation wireless local area networks (WLANs) will support the use of wider channels, which is known as channel bonding, to achieve higher throughput. However, because both the channel center frequency and the channel ...
  • Bel, Albert; Adame, Toni; Bellalta, Boris (Elsevier, 2018)
    One of the main challenges when designing a new self-powered Low Power Wide Area Network (LPWAN) technology is the vast operational dependence on its scarce energy resources. Therefore, a thorough identification and ...
  • Ferraro, Andrés; Bogdanov, Dmitry; Serra, Xavier; Yoon, Jason; Comunicació presentada a: The 1st Workshop on Designing Human-Centric MIR Systems, esdeveniment satèl·lit d'ISMIR 2019, celebrat a Delft, Holanda, el dia 2 de novembre de 2019. (ACM FAT Network, 2019)
    Algorithms have an increasing influence on the music that we consume and understanding their behavior is fundamental to make sure they give a fair exposure to all artists across different styles. In this on-going work ...
  • Liao, Ruizhi; Bellalta, Boris; Oliver, Miquel; Niu, Zhisheng (Institute of Electrical and Electronics Engineers (IEEE), 2016)
    As wireless devices boom and bandwidth-hungry applications (e.g., video and cloud uploading) get popular, today's wireless local area networks (WLANs) become not only crowded but also stressed at throughput. Multiuser ...
  • Bellalta, Boris (Institute of Electrical and Electronics Engineers (IEEE), 2016)
    IEEE 802.11ax-2019 will replace both IEEE 802.11n-2009 and IEEE 802.11ac-2013 as the next high-throughput WLAN amendment. In this article, we review the expected future WLAN scenarios and use cases that justify the push ...

Search DSpace


Advanced Search

Browse

My Account

Compliant to Partaking