Now showing items 1-20 of 990

    3D mapping and path planning from range data 

    Teniente Avilés, Ernesto Homar (Date of defense: 2016-02-09)

    This thesis reports research on mapping, terrain classification and path planning. These are classical problems in robotics, typically studied independently, and here we link such problems by framing them within a common ...

    3D Partial scans models for people recognition with a RGB-D sensor 

    Trejo Ramírez, Karla Andrea (Date of defense: 2020-01-22)

    Research developed in this thesis is motivated by a vision of a future where social activities and personalized services are delivered in intelligent environments, entering a new era of more natural and wholesome human-machine ...

    3D pose estimation in complex environments 

    Peñate Sánchez, Adrián (Date of defense: 2017-04-07)

    Although there has been remarkable progress in the pose estimation literature, there are still a number of limitations when existing algorithms must be applied in everyday applications, especially in uncontrolled environments. ...

    3D simulation of magneto-mechanical coupling in MRI scanners using high order FEM and POD 

    Seoane Chouciño, Marcos (Date of defense: 2020-07-15)

    Magnetic Resonance Imaging (MRI) scanners have become an essential tool in the medical industry due to their ability to produce high resolution images of the human body. To generate an image of the body, MRI scanners combine ...

    A computational study of intervertebral disc degeneration in relation to changes in regional tissue composition and disc nutrition 

    Ruiz Wills, Carlos (Date of defense: 2015-07-17)

    Up to 85% of the world population suffers from low back pain, a clinical condition often related to the intervertebral disc (IVD) degeneration (DD). Altered disc cell nutrition affects cell viability and can generate ...

    A constraint-based hypergraph partitioning approach to coreference resolution 

    Sapena Masip, Emili (Date of defense: 2012-05-16)

    The objectives of this thesis are focused on research in machine learning for coreference resolution. Coreference resolution is a natural language processing task that consists of determining the expressions in a discourse ...

    A contribution to the ranking and description of classifications 

    Sánchez Hernández, Germán (Date of defense: 2013-09-13)

    This thesis presents a novel and complete fuzzy multi-criteria decision making (MCDM) methodology. This methodology is specifically designed for selecting classifications in the framework of unsupervised learning systems. ...

    A data-driven approach to prescribe web API evolution 

    Koçi, Rediana (Date of defense: 2024-01-23)

    (English) In the last two decades, the use of web Application Programming Interfaces (APIs) has grown exponentially, providing both consumers (software developers) and providers (companies and institutions that expose their ...

    A dependency-aware parallel programming model 

    Pérez Cáncer, Josep Maria (Date of defense: 2015-02-11)

    Designing parallel codes is hard. One of the most important roadblocks to parallel programming is the presence of data dependencies. These restrict parallelism and, in general, to work them around requires complex analysis ...

    A double full-stack architecture for multi-core quantum computers 

    Rodrigo Muñoz, Santiago (Date of defense: 2023-12-18)

    (English) Despite its tremendous potential, it is still unclear how quantum computing will scale to satisfy the requirements of its most powerful applications. Continued progress in the fabrication and control of qubits ...

    A dynamic adaptive framework for improving case-based reasoning system performance 

    Orduña, Fernando (Date of defense: 2016-02-05)

    An optimal performance of a Case-Based Reasoning (CBR) system means, the CBR system must be efficient both in time and in size, and must be optimally competent. The efficiency in time is closely related to an efficient and ...

    A Dynamic Validation Infrastructure for Interoperable Grid Services 

    Luna García, Jesús (Date of defense: 2008-05-05)

    Los encargados de recursos Grid pueden autorizar el acceso a sus elementos de cómputo por medio de procedimientos bien establecidos para los clientes, regularmente a través del uso de credenciales criptográficas que en su ...

    A filtering engine for large conceptual schemas 

    Villegas Niño, Antonio (Date of defense: 2013-01-29)

    A Flexible Multitask Summarizer for Documents from Different Media, Domain and Language 

    Fuentes Fort, Maria (Date of defense: 2008-03-31)

    Automatic Summarization is probably crucial with the increase of document generation. Particularly when retrieving, managing and processing information have become decisive tasks. However, one should not expect perfect ...

    A framework for efficient execution of matrix computations 

    Herrero Zaragoza, Jose Ramón (Date of defense: 2006-07-07)

    Matrix computations lie at the heart of most scientific computational tasks. The solution of linear systems of equations is a very frequent operation in many fields in science, engineering, surveying, physics and ...

    A framework for the analytical and visual interpretation of complex spatiotemporal dynamics in soccer 

    Fernández de la Rosa, Javier (Date of defense: 2022-01-18)

    Sports analytics is an emerging field focused on the application of advanced data analysis for assessing the performance of professional athletes and teams. In soccer, the integration of data analysis is in its initial ...

    A hesitant fuzzy perceptual-based approach to model linguistic assessments 

    Porro Martorell, Olga (Date of defense: 2021-04-07)

    Multiple-criteria or multiple-attribute group decision-making is a sub-field of operations research that seek to find a common and representative solution given the preferences elicited by a pre-defined group, over a set ...

    A hierarchical parallel implementation model for algebra-based CFD simulations on hybrid supercomputers 

    Álvarez Farré, Xavier (Date of defense: 2022-09-05)

    (English) Continuous enhancement in hardware technologies enables scientific computing to advance incessantly and reach further aims. Since the start of the global race for exascale high-performance computing (HPC), ...

    A Hybrid Environment for Syntax-Semantic Tagging 

    Padró, Lluís (Date of defense: 1998-02-06)

    The thesis describes the application of the relaxation labelling algorithm to NLP disambiguation. Language is modelled through context constraint inspired on Constraint Grammars. The constraints enable the use of a real ...

    A method for the unified definition and treatment of conceptual schema quality issues 

    Aguilera Moncusí, David (Date of defense: 2014-06-06)

    The modern world is software-intensive. National infrastructures, smartphones and computers, health-care systems, e-commerce... everything is run by software. Therefore, developing high-quality software solutions is essential ...