Reports de recerca

Enviaments recents

  • Explaining how transformers use context to build predictions 

    Ferrando Monsonís, Javier; Gallego Olsina, Gerard Ion; Tsiamas, Ioannis; Ruiz Costa-jussà, Marta (2023-05-21)
    Report de recerca
    Accés obert
    Language Generation Models produce words based on the previous context. Although existing methods offer input attributions as explanations for a model's prediction, it is still unclear how prior words affect the model's ...

  • Interpreting machine learning models for survival analysis: a study of cutaneous melanoma using the SEER database 

    Hernández Pérez, Carlos; Pachón García, Cristian; Delicado Useros, Pedro Francisco; Vilaplana Besler, Verónica (2023-06-15)
    Report de recerca
    Accés obert
    In this study, we train and compare three types of machine learning algorithms for Survival Analysis: Random Survival Forest, DeepSurv and DeepHit, using the SEER database to model cutaneous malignant melanoma. Additionally, ...

  • The 2021 volcanic eruption in La Palma Island and its impact on ionospheric scintillation as measured from GNSS reference stations, GNSS-R, and GNSS-RO 

    Molina Ordóñez, Carlos; Boudriki Semlali, Badr Eddine; Hyuk, Park; Camps Carmona, Adriano José (2022-11-11)
    Report de recerca
    Accés obert
    Ionospheric disturbances induced by seismic activity have been studied in the last years by many authors, showing an impact both before and after the occurrence of earthquakes. In this study, the ionospheric scintillation ...

  • SHAS: approaching optimal segmentation for end-to-end speech translation 

    Tsiamas, Ioannis; Gallego Olsina, Gerard Ion; Fonollosa, José A. R.; Ruiz Costa-Jussà, Marta (2022-02)
    Report de recerca
    Accés obert
    Speech translation models are unable to directly process long audios, like TED talks, which have to be split into shorter segments. Speech translation datasets provide manual segmentations of the audios, which are not ...

  • End-to-End speech translation with pre-trained models and adapters: UPC at IWSLT 2021 

    Gallego Olsina, Gerard Ion; Tsiamas, Ioannis; Escolano Peinado, Carlos; Fonollosa, José A. R.; Ruiz Costa-Jussà, Marta (2021-06-28)
    Report de recerca
    Accés obert
    This paper describes the submission to the IWSLT 2021 offline speech translation task by the UPC Machine Translation group. The task consists of building a system capable of translating English audio recordings extracted ...

  • Gender bias in multilingual neural machine translation: The architecture matters 

    Ruiz Costa-Jussà, Marta; Escolano Peinado, Carlos; Basta, Christine Raouf Saad; Ferrando Monsonís, Javier; Batlle, Roser; Kharitonova, Ksenia (2020-12-24)
    Report de recerca
    Accés obert
    Multilingual Neural Machine Translation architectures mainly differ in the amount of sharing modules and parameters among languages. In this paper, and from an algorithmic perspective, we explore if the chosen architecture, ...

  • Identifying the best machine learning algorithms for brain tumor segmentation, progression assessment, and overall survival prediction in the BRATS challenge 

    Bakas, Spyridon; Reyes, Mauricio; Jakab, Andras; Bauer, Stefan; Casamitjana Díaz, Adrià; Catà, Marcel; Combalia, Marc; Sanchez Muriana, Irina; Vilaplana Besler, Verónica (2019-03-19)
    Report de recerca
    Accés obert
    Gliomas are the most common primary brain malignancies, with different degrees of aggressiveness, variable prognosis and various heterogeneous histologic sub-regions, i.e., peritumoral edematous/invaded tissue, necrotic ...

  • The UPC speaker verification system submitted to VoxCeleb Speaker Recognition Challenge 2020 (VoxSRC-20) 

    Khan, Umair; Hernando Pericás, Francisco Javier (2020-10-27)
    Report de recerca
    Accés obert
    This report describes the submission from Technical University of Catalonia (UPC) to the VoxCeleb Speaker Recognition Challenge (VoxSRC-20) at Interspeech 2020. The final submission is a combination of three systems. ...

  • Innovative mmWave transmissions schemes channel models and antennas 

    Agustín de Dios, Adrián; Vidal Manzano, José; Pascual Iserte, Antonio; Raafat Hosny Mohamed Fahm, Ahmed; Aslam, Zahid; Corre, Yoann; Basavarajappa, Vedaprabhu; Bedia, Beatriz; Tan, Yi; Wang, Cheng-Xiang (2017-10-12)
    Report de recerca
    Accés obert
    The next generation (5G) of wireless communication will improve upon existing mobile communication standards significantly while taking into account the increasing amount of stress on the limited amount of available ...