• Extremes of error exponents

  Guillén i Fàbregas, Albert; Land, Ingmar; Martinez, Alfonso (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 ...
• Mismatched decoding: error exponents, second-order rates and saddlepoint approximations

  Scarlett, Jonathan; Martinez, Alfonso; Guillén i Fàbregas, Albert (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 ...
• Expurgated random-coding ensembles: exponents, refinements and connections

  Scarlett, Jonathan; Peng, Li; Merhav, Neri; Martinez, Alfonso; Guillén i Fàbregas, Albert (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 ...
• MIMO block-fading channels with mismatched CSI

  Asyhari, A. Taufiq; Guillén i Fàbregas, Albert (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 ...
• Hypernym extraction: combining machine-learning and dependency grammar

  Espinosa-Anke, Luis; Ronzano, Francesco; Saggion, Horacio (Springer, 2015)

  Hypernym extraction is a crucial task for semantically motivated NLP tasks such as taxonomy and ontology learning, textual entailment or paraphrase identification. In this paper, we describe an approach to hypernym extraction ...
• A Derivation of the source-channel error exponent using nonidentical product distributions

  Tauste Campo, Adrià; Vazquez-Vilar, Gonzalo; Guillén i Fàbregas, Albert; Koch, Tobias; Martinez, Alfonso (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 ...
• Second-order rate region of constant-composition codes for the multiple-access channel

  Scarlett, Jonathan; Martinez, Alfonso; Guillén i Fàbregas, Albert (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, ...
• A Counter-example to the mismatched decoding converse for binary-input discrete memoryless channels

  Scarlett, Jonathan; Somekh-Baruch, Anelia; Martinez, Alfonso; Guillén i Fàbregas, Albert (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 ...
• Bayesian M-Ary hypothesis testing: the meta-converse and Verdú-Han bounds are tight

  Vazquez-Vilar, Gonzalo; Tauste Campo, Adrià; Guillén i Fàbregas, Albert; Martinez, Alfonso (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 ...
• Multiuser random coding techniques for mismatched decoding

  Scarlett, Jonathan; Martinez, Alfonso; Guillén i Fàbregas, Albert (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 ...
• 3D-printing of transparent bio-microfluidic devices in PEG-DA

  Urrios, Arturo; Parra-Cabrera, Cesar; Bhattacharjee, Nirveek; Gonzalez-Suarez, Alan M.; Rigat-Brugarolas, Luis G.; Nallapatti, Umashree; Samitier, Josep; DeForest, Cole A.; Posas Garriga, Francesc; Garcia-Cordero, José L.; Folch, Albert (Royal Society of Chemistry, 2016)

  The vast majority of microfluidic systems are molded in poly(dimethylsiloxane) (PDMS) by soft lithography due to the favorable properties of PDMS: biocompatible, elastomeric, transparent, gas-permeable, inexpensive, and ...
• Genomic insights into the origin of farming in the ancient Near East

  Lazaridis, Iosif; Comas, David, 1969-; Reich, David (2016)

  We report genome-wide ancient DNA from 44 ancient Near Easterners ranging in time between ~12,000 and 1,400 bc, from Natufian hunter-gatherers to Bronze Age farmers. We show that the earliest populations of the Near East ...
• Width and complexity of belief tracking in non-deterministic conformant and contingent planning

  Bonet, Blai; Geffner, Héctor (Association for the Advancement of Artificial Intelligence (AAAI), 2012)

  It has been shown recently that the complexity of belief tracking in deterministic conformant and contingent planning is exponential in a width parameter that is often bounded and small. In this work, we introduce a new ...
• Action selection for MDPs: anytime AO* vs. UCT

  Bonet, Blai; Geffner, Héctor (Association for the Advancement of Artificial Intelligence (AAAI), 2012)

  In the presence of non-admissible heuristics, A* and other best-first algorithms can be converted into anytime optimal algorithms over OR graphs, by simply continuing the search after the first solution is found. The ...
• Maternal smoking during pregnancy and early childhood and development of asthma and rhinoconjunctivitis - a MeDALL Project

  Thacher, Jesse D.; Antó i Boqué, Josep Maria; Bergström, Anna (National Institute of Environmental Health Sciences, 2018)

  BACKGROUND: The role of tobacco smoke exposure in the development and persistence of asthma and rhinoconjunctivitis through childhood into adolescence is unclear. OBJECTIVES: We assessed the associations of parental smoking ...
• Artificial Intelligence: From programs to solvers

  Geffner, Héctor (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 ...
• The Simons Genome Diversity Project: 300 genomes from 142 diverse populations

  Mallick, Swapan; Li, Heng; Lipson, Mark; Mathieson, Ian; Gymrek, Melissa; Racimo, Fernando; Zhao, Mengyao; Chennagiri, Niru; Nordenfelt, Susanne; Tandom, Arti; Skoglund, Pontus; Lazaridis, Iosif; Sankararaman, Sriram; Fu, Qiaomei; Rohland, Nadin; Renaud, Gabriel; Erlich, Yaniv; Willems, Thomas; Gallo, Carla; Spence, Jeffrey P.; Song, Yun S.; Poletti, Giovanni; Balloux, François; van Driem, George; de Knijff, Peter; Gallego Romero, Irene; Jha, Aashish R.; Behar, Doron M.; Bravi, Claudio M.; Capelli, Cristian; Hervig, Tor; Moreno Estrada, Andrés; Posukh, Olga L.; Balanovska, Elena; Balanovsky, Oleg; Karachanak-Yankova, Sena; Sahakyan, Hovhannes; Toncheva, Draga; Yepiskoposyan, Levon; Tyler-Smith, Chris; Xue, Yali; Abdullah, M. Syafiq; Ruiz-Linares, Andres; Beall, Cynthia M.; Di Rienzo, Anna; Jeong, Choongwon; Starikovskaya, Elena B.; Metspalu, Ene; Parik, Jüri; Villems, Richard; Henn, Brenna M.; Hodoglugil, Ugur; Mahley, Robert; Sajantila, Antii; Stamatoyannopoulos, George; Wee, Joseph T.S.; Khusainova, Rita; Khusnutdinova, Elza; Litvinov, Sergey; Ayodo, George; Comas, David, 1969-; Hammer, Michael; Kivisild, Toomas; Klitz, William; Winkler, Cheryl; Labuda, Damian; Bamshad, Michael; Jorde, Lynn B.; Tishkoff, Sarah A.; Watkins, W. Scott; Metspalu, Mait; Dryomov, Stanislav; Sukernik, Rem; Singh, Lalji; Thangaraj, Kumarasamy; Pääbo, Svante; Kelso, Janet; Patterson, Nick; Reich, David (Nature Publishing Group, 2016)

  Here we report the Simons Genome Diversity Project data set: high quality genomes from 300 individuals from 142 diverse populations. These genomes include at least 5.8 million base pairs that are not present in the human ...
• comoRbidity: an R package for the systematic analysis of disease comorbidities

  Gutiérrez Sacristán, Alba; Bravo Serrano, Àlex, 1984-; Giannoula, Alexia; Mayer, Miguel Ángel, 1960-; Sanz, Ferran; Furlong, Laura I., 1971- (Oxford University Press, 2018)

  MOTIVATION: The study of comorbidities is a major priority due to their impact on life expectancy, quality of life and healthcare cost. The availability of electronic health records (EHRs) for data mining offers the ...
• Multi-class source-channel coding

  Bocharova, Irina E.; Guillén i Fàbregas, Albert; Kudryashov, Boris D.; Martinez, Alfonso; Tauste Campo, Adrià; Vazquez-Vilar, Gonzalo (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 ...
• Heart morphology differences induced by intrauterine growth restriction and preterm birth measured on the ECG at preadolescent age

  Ortigosa, Núria; Rodriguez López, Mérida; Bailón, Raquel; Sarvari, Sebastian Imre; Sitges, Marta; Gratacós Solsona, Eduard; Bijnens, Bart; Crispi Brillas, Fàtima; Laguna, Pablo (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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