Ara es mostren els items 21-35 de 35

    • Introduction to natural language understanding and chatbots 

      Cristino Marcos, Víctor (Universitat Politècnica de Catalunya, 2018-09)
      Treball Final de Grau
      Accés obert
      The aim of this thesis is to give an introduction to Natural Language Understanding. Many tools and language models are described along this work in order to teach a machine the ability to analyze and understand human ...
    • Lesiones en la lucha tradicional: el caso de la lucha leonesa (2005-2015) 

      Blasco Carmona, M. J.; Casals Toquero, Martí; Fernández Villa, Tania; Langohr, Klaus (2018-12-01)
      Article
      Accés obert
      El objetivo de este estudio fue describir la localización anatómica, el tipo y la gravedad de las lesiones ocurridas en las competiciones oficiales de las ligas de verano masculinas (2005-2015) de Lucha Leonesa. Al objeto ...
    • Median bilinear models in presence of extreme values 

      Santolino, Miguel (Institut d'Estadística de Catalunya, 2021-12-02)
      Article
      Accés obert
      Bilinear regression models involving a nonlinear interaction term are applied in many fields (e.g., Goodman’s RC model, Lee-Carter mortality model or CAPM financial model). In many of these contexts data often exhibit ...
    • On doubling and volume: chains 

      Freiman, Gregory A.; Serra Albó, Oriol (\Institute of Mathematics, Polish Academy of Sciences\, 2018-10-01)
      Article
      Accés obert
      The well-known Freiman–Ruzsa theorem provides a structural description of a set A of integers with |2A|=c|A| as a subset of a d–dimensional arithmetic progression P with |P|=c'|A|, where d and c' depend only on c. The ...
    • On Motzkin’s problem in the circle group 

      Candela Pokorna, Pablo; Catalá, Carlos; Rué Perna, Juan José; Serra Albó, Oriol (2021-09-01)
      Article
      Accés obert
      Given a subset D of the interval (0,1), if a Borel set A¿[0,1) contains no pair of elements whose difference modulo 1 is in D, then how large can the Lebesgue measure of A be? This is the analogue in the circle group of a ...
    • Optimal non-perfect uniform secret sharing schemes 

      Farràs Ventura, Oriol; Hansen, Torben; Kaced, Tarik; Padró Laimon, Carles (Springer, 2014)
      Text en actes de congrés
      Accés obert
      A secret sharing scheme is non-perfect if some subsets of participants that cannot recover the secret value have partial information about it. The information ratio of a secret sharing scheme is the ratio between the maximum ...
    • Product of primes in arithmetic progressions 

      Ramaré, Olivier; Srivastav, Priyamvad; Serra Albó, Oriol (2020-05-01)
      Article
      Accés obert
      We prove that, for all q=2 and for all invertible residue classes a modulo q, there exists a natural number n=(650q)9 that is congruent to a modulo q and that is the product of exactly three primes, all of which are below ...
    • Safety and efficacy of thrombectomy in acute ischaemic stroke (REVASCAT): 1-year follow-up of a randomised open-label trial 

      Dávalos Errando, Antoni; Cobo Valeri, Erik; Molina, Carlos A.; Chamorro, Ángel; de Miquel, Maria Angeles; San Román, L.; Serena Leal, Joaquín; López-Cancio, Elena; Ribó, Marc; Millán, Mónica; Urra, Xabier; Cardona, Pere; Tomasello, Alejandro; Castaño, Carlos; Blasco, Jordi; Aja, Lucia; Rublera, Marta; Gomis Cortina, Meritxell; Renú, Arturo; Lara, Blanca; Fàbregas, Joan Martí; Jankowitz, Brian; Cerdà, Neus; Jovin, Tudor G. (2017-03-16)
      Article
      Accés obert
    • Sample size computation for non-inferiority trials with survival endpoint and interim analyses 

      Alonso García, Lucia Alexandra (Universitat Politècnica de Catalunya / Universitat de Barcelona, 2018-06)
      Projecte Final de Màster Oficial
      Accés restringit per decisió de l'autor
      The main goal of this master thesis is to compute the sample size of the OPTIMAL study (OPTimizing Irradiation through Molecular Assessment of Lymph node), which is a non-inferiority clinical trial with survival data and ...
    • SEIRD COVID-19 formal characterization and model comparison validation 

      Fonseca Casas, Pau; García Carrasco, Víctor; Garcia Subirana, Joan (Multidisciplinary Digital Publishing Institute, 2020-07-27)
      Article
      Accés obert
      Based on a SEIRD model (Susceptible, Exposed, Infective, Recovered and Deceased) for COVID-19 infection with a new parametrization using a high infection rate, and a low fatality, we define the model in System Dynamics, ...
    • The rado multiplicity problem in vector spaces over finite fields 

      Rué Perna, Juan José; Spiegel, Christoph (Muni press, 2023)
      Comunicació de congrés
      Accés obert
      We study an analogue of the Ramsey multiplicity problem for additive structures, establishing the minimum number of monochromatic $3$-APs in $3$-colorings of $\mathbb{F}_3^n$ and obtaining the first non-trivial lower bound ...
    • The same Fibonacci Number 

      Díaz Barrero, José Luis (2017-05)
      Article
      Accés restringit per decisió de l'autor
    • Towards 3n - 4 in groups of prime order 

      Lev, Vsevolod; Serra Albó, Oriol (2023-06-16)
      Article
      Accés obert
      We show that if A is a subset of a group of prime order p such that |2.Al < 2.7652|Al and 10 < |A| < 1.25 - 10-®p, then A is contained in an arithmetic progression with at most 2A - [Al + 1 terms, and 2.4 contains an ...
    • Towards a representation of cellular automaton using specification and description language 

      Fonseca Casas, Pau (Springer, 2019)
      Text en actes de congrés
      Accés restringit per política de l'editorial
      Environmental simulation is complex, not only due to the inherent complexity of the phenomenon that we are facing but also to the fact that the personnel involved in this kind of projects belongs to different areas and ...
    • Which method to use? An assessment of data mining methods in Environmental Data Science 

      Gibert, Karina; Izquierdo Sebastián, Joaquín; Sànchez-Marrè, Miquel; Hamilton, Serena H.; Rodriguez Roda, Ignasi; Holmes, Geoffrey (Elsevier, 2018-12)
      Article
      Accés obert
      Data Mining (DM) is a fundamental component of the Data Science process. Over recent years a huge library of DM algorithms has been developed to tackle a variety of problems in fields such as medical imaging and traffic ...