Doctorat en Teoria del Senyal i Comunicacions
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Articles de revista [182]
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Effect of electron number densities on the radio signal propagation in an inductively coupled plasma facility
(2023-11)
Article
Open AccessSpacecraft entering a planetary atmosphere are surrounded by a plasma layer containing high levels of ionization, due to the extreme temperatures in the shock layer. The high electron number densities cause attenuation of ... -
Prediction models using artificial intelligence and longitudinal data from electronic health records: a systematic methodological review
(2023-09-02)
Article
Open AccessObjective: To describe and appraise the use of artificial intelligence (AI) techniques that can cope with longitudinal data from electronic health records (EHRs) to predict health-related outcomes. Methods: This ... -
Measuring the mixing of contextual information in the transformer
(Association for Computational Linguistics, 2022)
Conference lecture
Open AccessThe Transformer architecture aggregates input information through the self-attention mechanism, but there is no clear understanding of how this information is mixed across the entire model. Additionally, recent works have ... -
Explaining how transformers use context to build predictions
(Association for Computational Linguistics, 2023)
Conference lecture
Open AccessLanguage 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 ... -
Satellite edge computing for real-time and very-high resolution Earth observation
(2023-07-18)
Article
Open AccessIn high-resolution Earth observation imagery, Low Earth Orbit (LEO) satellites capture and transmit images to ground to create an updated map of an area of interest. Such maps provide valuable information for meteorology ... -
Contribution of frailty to multimorbidity patterns and trajectories: Longitudinal dynamic cohort study of aging people
(2023-06-27)
Article
Open AccessBackground: Multimorbidity and frailty are characteristics of aging that need individualized evaluation, and there is a 2-way causal relationship between them. Thus, considering frailty in analyses of multimorbidity is ... -
Design and validation of a dual-band circular polarization patch antenna and stripline combiner for the FSSCat mission
(2023-07)
Article
Open AccessThe FMPL-2 payload on board the 3Cat-5/A 6 Unit CubeSat, part of the FSSCat CubeSat mission, includes a dual L-Band Microwave Radiometer and a Global Navigation Satellite System Reflectometer, in one instrument, implemented ... -
Fresh volcanic aerosols injected in the atmosphere during the volcano eruptive activity at the Cumbre Vieja area (La Palma, Canary Islands): Temporal evolution and vertical impact
(Elsevier, 2023-05)
Article
Restricted access - publisher's policyFor the first time in fifty years, the Cumbre Vieja volcanic area (La Palma, Canary Islands, Spain) erupted on September 19, 2021, giving birth to a new volcano. Fresh volcanic aerosols were continuously injected into the ... -
Determination of pumping and dynamic vacuum properties of conductive quaternary alloy of TiZrVAg non-evaporable getter
Conference report
Open AccessNon Evaporable Getter (NEG) coating has been employed extensively in the particle accelerator especial-ly where the vacuum conductance of the vessel is se-verely restricted and ultra-high vacuum condition is required. NEG ... -
Data driven joint sensor fusion and regression based on geometric mean squared error
(Institute of Electrical and Electronics Engineers (IEEE), 2023)
Conference lecture
Open AccessThis paper explores the problem of estimating a temporal series measured from multiple independent sensors with unequal and stationary measurement errors with unknown variances. By formulating the data fusion problem as a ... -
Sign language translation from instructional videos
(Computer Vision Foundation, 2023)
Conference report
Open AccessThe advances in automatic sign language translation (SLT) to spoken languages have been mostly benchmarked with datasets of limited size and restricted domains. Our work advances the state of the art by providing the first ... -
A GPU parallel randomized CUR compression method for the Method of Moments
(2023-06-01)
Article
Restricted access - publisher's policyIn this work, we propose a GPU parallel implementation of the randomized CUR (or Pseudo Skeleton) Approximation to compress the -matrices of linear systems that arise in the discretization of integral equations modeling ...
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