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Articles (Departament de Tecnologies de la Informació i les Comunicacions)
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Articles de recerca, en accés obert, del Departament de Tecnologies de la Informació i de les Comunicacions de la UPF.
Enviaments recents
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(Elsevier, 2018)In the last few years, there has been an increasing interest in developing systems for Automatic Lip-Reading (ALR). Similarly to other computer vision applications, methods based on Deep Learning (DL) have become very ...
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(2013)This study addresses the automatic simplification of texts in Spanish in order to make them more accessible to people with cognitive disabilities. A corpus analysis of original and manually simplified news articles was ...
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(Institute of Electrical and Electronics Engineers (IEEE), 2013)This paper determines the range of feasible values of standard error exponents for binary-input memoryless symmetric channels of fixed capacity C and shows that extremes are attained by the binary symmetric and the binary ...
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(Institute of Electrical and Electronics Engineers (IEEE), 2014)This paper considers the problem of channel coding with a given (possibly suboptimal) maximum-metric decoding rule. A cost-constrained random-coding ensemble with multiple auxiliary costs is introduced, and is shown to ...
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(Institute of Electrical and Electronics Engineers (IEEE), 2014)This paper studies expurgated random-coding bounds and exponents for channel coding with a given (possibly suboptimal) decoding rule. Variations of Gallager's analysis are presented, yielding several asymptotic and ...
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(Institute of Electrical and Electronics Engineers (IEEE), 2014)We study transmission over multiple-input multiple-output block-fading channels with imperfect channel state information (CSI) at both the transmitter and receiver. In particular, based on mismatched decoding theory for a ...
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(Institute of Electrical and Electronics Engineers (IEEE), 2014)This paper studies the random-coding exponent of joint source-channel coding for a scheme where source messages are assigned to disjoint subsets (referred to as classes), and codewords are independently generated according ...
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(Institute of Electrical and Electronics Engineers (IEEE), 2015)This paper studies the second-order asymptotics of coding rates for the discrete memoryless multiple-access channel (MAC) with a fixed target error probability. Using constant-composition random coding, coded time-sharing, ...
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(Institute of Electrical and Electronics Engineers (IEEE), 2015)This paper studies the mismatched decoding problem for binary-input discrete memoryless channels. An example is provided for which an achievable rate based on superposition coding exceeds the Csiszár-Körner-Hui rate, thus ...
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(Institute of Electrical and Electronics Engineers (IEEE), 2016)Two alternative exact characterizations of the minimum error probability of Bayesian M-ary hypothesis testing are derived. The first expression corresponds to the error probability of an induced binary hypothesis test and ...
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(Institute of Electrical and Electronics Engineers (IEEE), 2016)This paper studies multiuser random coding techniques for channel coding with a given (possibly suboptimal) decoding rule. For the mismatched discrete memoryless multiple-access channel, an error exponent is obtained that ...
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(SAGE Publications, 2018)Over the past years an increasing number of digital learning environments based on Full-Body Interaction have been developed. Research in this field is often based on Designer-Driven approaches and is only recently employing ...
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(IOS Press, 2014)Artificial Intelligence is a brain child of Alan Turing and his universal programmable computer. During the 1960s and 1970s, AI researchers used computers for exploring intuitions about intelligence and for writing programs ...
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(Institute of Electrical and Electronics Engineers (IEEE), 2016)This paper studies an almost-lossless source-channel coding scheme in which source messages are assigned to different classes and encoded with a channel code that depends on the class index. The code performance is analyzed ...
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(Institute of Electrical and Electronics Engineers (IEEE), 2016)This paper studies multiuser coding techniques for channel coding with a given (possibly suboptimal) decoding rule. For the mismatched discrete memoryless multiple-access channel, error exponents are obtained which are ...
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(SAGE Publications, 2016)While older people tend to be regarded as actual, or potential, players of digital games within literature on Game Studies, Human-Computer Interaction and Gerontechnologu, they are also often considered non-avid users of ...
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(Elsevier, 2016)Intrauterine Growth Restriction (IUGR) and premature birth are associated with higher risk of cardiovascular diseases throughout adulthood. The aim of this study was to evaluate the influence of these factors in ventricular ...
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(Lippincott Williams & Wilkins, 2016)Objective: To evaluate the cardiac structure and function of the fetuses of pregnant women with HIV infection on combined antiretroviral treatment (cART) and the HIV-related and nonrelated determinants of abnormal ...
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(Wiley, 2014)Objective To assess carotid and aortic intima–media thickness (IMT) in term small‐for‐gestational‐age (SGA) newborns with and without prenatal signs of severity. Methods This prospective study comprised 67 cases ...
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(Wiley, 2016)Objectives Intrauterine growth restriction is associated with increased cardiovascular risk later in life but the link between fetal disease and postnatal risk is not well‐documented. We evaluated longitudinally the ...
