Browsing by Contributor "Mazzanti Castrillejo, Fernando Pablo"
Now showing items 1-20 of 20
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A comparative study of different gradient approximations for Restricted Boltzmann Machines
(Universitat Politècnica de Catalunya, 2023-06-29)
Master thesis
Open Access
Covenantee: Universitat Rovira i Virgili. Escola Tècnica Superior d'Enginyeria / Universitat de Barcelona. Facultat de Matemàtiques i InformàticaThis project consists of the theoretical study of Restricted Boltzmann Machines(RBMs) and focuses on the gradient approximations of RBMs. RBMs suffer from the dilemma of accurate learning with the exact gradient. Based on ... -
Analysis of Restricted Boltzmann Machines with pattern-dependant weights
(Universitat Politècnica de Catalunya, 2021-01-24)
Master thesis
Open AccessThis project will consist on the theoretical and experimental analysis of Restricted Boltzmann Machines where the matrix of weights is defined as a function of a set of adjustable patterns, derivation of the learning ... -
Classical Field simulations of a 1D quasi-condensate gas
(Universitat Politècnica de Catalunya, 2023-07-07)
Bachelor thesis
Open Access
Covenantee: Université Paris-SaclayThis thesis presents a numerical work on ultracold 1D boson gases. We first present a theoretical framework that explains the physics of 1D Bose gases. We then perform numerical simulations of these systems described by ... -
Correlations in spin-orbit coupled ultracold quantum gases
(Universitat Politècnica de Catalunya, 2020-12-14)
Doctoral thesis
Open AccessThe main goal of this thesis is the computation of ground state properties of quantum many-body systems under Spin Orbit coupling (SOC) interactions out of the ultradilute regime. We present two approaches to fulfill this ... -
Diagrammatic expansions of Hubbard models
(Universitat Politècnica de Catalunya, 2016-06-19)
Bachelor thesis
Open AccessOptical lattice are periodic structures made of light, they are formed by the interference of laser beams producing standing waves. The depth and the periodicity of the optical lattice can be highly controlled, therefore, ... -
Discovering Interpretable Dynamics with Partial Information
(Universitat Politècnica de Catalunya, 2020-05-25)
Bachelor thesis
Restricted access - author's decision
Covenantee: Massachusetts Institute of TechnologyEs construeix un algoritme amb intel·ligència artificial i se'n demostra el seu funcionament. Aquest algoritme, donades observacions de part d'un sistema regit per una equació diferencial (ja siguin EDO's o EDP's), és capaç ... -
Dynamics of Many-Body Quantum Systems
(Universitat Politècnica de Catalunya, 2015-07-03)
Bachelor thesis
Open AccessWe study the ground state and the excitations of quantum bose systems. The hypernetted chain equations (HNC) are introduced and we show that the methods based on them produce acceptable approximations of the static structure ... -
Estudio sobre la optimización de los parámetros en GPU
(Universitat Politècnica de Catalunya, 2023-06-28)
Bachelor thesis
Open AccessEste es un Trabajo Final de Grado de Ingeniería Informática, de la especialidad de computación para la Facultad de Informática de Barcelona, perteneciente a la Universidad Politécnica de Catalunya. El proyecto trata sobre ... -
Experimental Analysis of Parallel Tempering in Restricted Boltzmann Machines for Machine Learning
(Universitat Politècnica de Catalunya, 2020-01-31)
Master thesis
Open AccessThis project focuses on Restricted Boltzmann Machines (RBM), which are graphical probabilistic models that can be used in the pre-training step of deep learning models. Due to its probabilistic nature and its nice ... -
Ground-state wave-function optimization for a quantum system of N bosons
(Universitat Politècnica de Catalunya, 2020-06-29)
Bachelor thesis
Open AccessAquest treball s'emmarca en el camp de l'estudi i simulació del comportament de sistemes quàntics complexos, les propietats dels quals vénen dictades per les lleis de la física quàntica. Aquestes juguen un paper fonamental ... -
Helium nucleation in liquid metals
(Universitat Politècnica de Catalunya, 2020-11-24)
Master thesis
Open AccessObtaining a successful nuclear fusion reaction is a really hard task. One of the factors that we must consider is the high temperatures that the blanket that wraps up the plasma can achieve. Due to this issue, the metals ... -
Implementation of restricted Boltzmann machines based on archetype selection
(Universitat Politècnica de Catalunya, 2023-05-15)
Bachelor thesis
Open AccessRestricted Boltzmann Machines are a type of Artificial Neural Network that are used in probability density estimation or classification. In this study, we want to test the ability to generalize a concept of an RBM and ... -
Mean field study of doubly Dipolar Bose condensates
(Universitat Politècnica de Catalunya, 2023-07-10)
Bachelor thesis
Open AccessStudy of the behavior and configurations of a weakly interacting Bose-Einstein condensate under the influence of doubly dipolar interactions. -
Microscopic description of confined bosonic dipolar quantum gases in two dimensions
(Universitat Politècnica de Catalunya, 2015-06-21)
Bachelor thesis
Open AccessWe present a microscopic description of the two dimensional quantum few body problem involving confined polarized bosons. Due to anisotropy of the dipolar interaction, the system presents an interesting behaviour in terms ... -
Microscopic description of two dimensional dipolar quantum gases
(Universitat Politècnica de Catalunya, 2015-02-13)
Doctoral thesis
Open AccessA microscopic description of the many-body properties of anisotropic homogeneous gases of bosonic dipoles in two dimensions is presented and discussed. By changing the polarization angle with respect to the plane, we study ... -
Prediction of Diabetic Retinopathy (DR), DR progression and relationship with clinical data using Optical Coherence Tomography Angiography
(Universitat Politècnica de Catalunya, 2023-10-27)
Master thesis
Open AccessDiabetic retinopathy (DR) is a common complication of diabetes and a leading cause of blindness. Early detection and treatment are critical to prevent vision loss. Optical coherence tomography angiography (OCTA) is an ... -
Restricted Boltzmann Machine learning through RAPID equations
(Universitat Politècnica de Catalunya, 2021-09-10)
Master thesis
Open AccessThis work consists on the theoretical study of Restricted Bolzmann Machines, neural networks that can learn the empirical distribution of different datasets. Particularly, we have studied RAPID, an alternative model that ... -
Restricted Boltzmann Machines with Three-Body Weights
(Universitat Politècnica de Catalunya, 2020-04)
Bachelor thesis
Open AccessLas Máquinas de Boltzmann Restringidas son un tipo de red neuronal capaz de aprender la distribución de probabilidad de los datos de entrenamiento. Esta característica lo hace un modelo muy útil, el cuál ha sido utilizado ... -
Simulation of differential equations using nVidia CUDA
(Universitat Politècnica de Catalunya, 2024-05-13)
Bachelor thesis
Open AccessEl proyecto trata sobre la segunda parte del decimosexto problema de Hilbert, es decir, la búsqueda de ciclos límites en sistemas de ecuaciones diferenciales cuadráticas. Se ha desarrollado un programa en CUDA C para tener ... -
Ultracold Bose and Fermi dipolar gases : a quantum Monte Carlo study
(Universitat Politècnica de Catalunya, 2019-12-13)
Doctoral thesis
Open AccessThe object of study of this thesis are dipolar systems in the quantum degenerate regime. In general, dealing with many-body systems and evaluating their properties requires to deal with the the Schrödinger equation. In the ...
