Now showing items 61-80 of 95

    Multi-level Parallelization in ROOT: New Patterns, Libraries and Utilities 

    Valls Pla, Xavier (Date of defense: 2018-10-19)

    The Large Hadron Collider (LHC) is generating Physics data at an unprecedented rate that is expected to continue increasing in the future. This situation results in increasing demands in computation and processing power ...

    Multithreaded Dense Linear Algebra on Asymmetric Multi-core Processors 

    Catalán Pallarés, Sandra (Date of defense: 2018-02-06)

    This dissertation targets two important problems. The first one is the design of low-level DLA kernels for architectures comprising two (or more) classes of cores. The main question we have to address here is how to attain ...

    Nuevos Algoritmos Basados en Grafos y Clustering para el Tratamiento de Complejidades de los Datos 

    Guzmán Ponce, Angélica (Date of defense: 2021-03-17)

    La distribución no balanceada de los datos entre las clases, así como la presencia de ruido y el traslape de clases, son complejidades de los datos que a menudo interfieren en el rendimiento de clasificadores. Para afrontar ...

    Percepción Artificial de Dibujos Lineales 

    Piquer Vicent, Ana (Date of defense: 2003-11-07)

    Los modeladores geométricos basados en percepción artificial de bocetos se han convertido durante la última década en una de las principales líneas de trabajo para obtener interfaces de diseño asistido por ordenador fáciles ...

    Perception-Based Learning for Fine Motion Planning in Robot Manipulation 

    Cervera Mateu, Enric (Date of defense: 1997-10-17)

    Robots must successfully execute tasks in the presence of uncertainty. <br/>The main sources of uncertainty are modeling, sensing, and control. Fine motion problems involve a small-scale space and contact between ...

    Privacy-enhancing technologies and privacy-enhancing cryptography for wearables 

    Casanova-Marqués, Raúl (Date of defense: 2024-04-29)

    In response to escalating privacy concerns and the need for secure digital communication, cryptographic mechanisms have been developed to ensure impervious information exchange. However, traditional cryptographic approaches ...

    Procedural Generation of Natural Environments 

    Gasch García, Cristina (Date of defense: 2021-03-12)

    The video games, simulators and virtual reality industry increasingly demands more complex and realistic natural environments, which makes manual generation difficult. To solve it, procedural techniques have been developed, ...

    Qualitative Distances and Qualitative Description of Images for Indoor Scene Description and Recognition in Robotics 

    Falomir Llansola, Zoe (Date of defense: 2011-11-28)

    <p>The automatic extraction of knowledge from the world by a robotic system as human beings interpret their environment through their senses is still an unsolved task in Artificial Intelligence. A robotic agent is in contact ...

    Qualitative theories on shape representation and movement. Application to industrial manufacturing and robotics 

    Museros Cabedo, Lledó (Date of defense: 2006-12-04)

    From the end of 80's there has been a great interest in the study of qualitative models to represent and to reason with spatial aspects. The present work is centred in the development and application of a model to reason ...

    Razonamiento geométrico basado en visión para la determinación y ejecución del agarre en robots manipuladores 

    Sanz Valero, Pedro José (Date of defense: 1996-10-04)

    Se presenta un sistema capaz de coordinar una pinza de dedos plano-paralelos y un sistema de visión con el objetivo de determinar puntos de agarre bajo condiciones de estabilidad.<br/>La elección de puntos de agarre se ...

    Received Signal Strength-based Indoor Positioning: Integrative Outlooks and Solutions 

    Mendoza Silva, Germán Martín (Date of defense: 2020-03-03)

    This thesis mainly deals with the stages of model description and evaluation of Indoor Positioning Systems based on fingerprinting. Its first contribution is a meta-review that addresses the current state of the art and ...

    Representaciones de vocabularios en tareas de traducción automática mediante modelos conexionistas 

    Casañ Núñez, Gustavo Adolfo (Date of defense: 2011-05-06)

    Trabajos anteriores de traducción automática con modelos conexionistas han obtenido resultados interesantes pero han resultado muy problemáticos de adaptar a tareas reales. En este trabajo se parte del modelo RECONTRA (una ...

    Reutilización de servicios web mediante componentes integrados 

    Granell Canut, Carlos (Date of defense: 2006-07-20)

    Desde los inicios de la era de la información la reutilización ha supuesto una práctica habitual para el desarrollo de aplicaciones software. Actualmente, la reutilización de software continúa siendo una aspecto esencial ...

    Scalable methods to analyze Semantic Web data 

    Nebot Romero, María Victoria (Date of defense: 2013-01-29)

    Semantic Web data is currently being heavily used as a data representation format in scientific communities, social networks, business companies, news portals and other domains. The irruption and availability of Semantic ...

    Semantic-based approach for the discovery of Life Sciences web resources driven by rich user’s requirements 

    Pérez Catalán, María (Date of defense: 2013-09-12)

    Web resources have been gaining popularity as providers of relevant data, whether those stored in datasets or those resulting from the execution of complex functions such as the alignment of protein sequences. Although ...

    Simplification Techniques for Interactive Applications 

    González Ballester, Carlos (Date of defense: 2010-07-09)

    Interactive applications with 3D graphics are used everyday in a lot of different fields, such as games, teaching, learning environments and virtual reality. The scenarios showed in interactive applications usually tend ...

    Simulaciones hiperrealistas para robótica educativa 

    Alemany Julià, Jaime (Date of defense: 2016-02-04)

    Esta tesis se centra en el estudio y desarrollo de simulaciones que explotan las capacidades del hardware y del software actuales para ofrecer experiencias más didácticas y atractivas en robótica educativa. Para conseguir ...

    Sistema interactivo de realidad aumentada y gamificación para la rehabilitación y mejora física asistida en entornos no supervisados basado en cámaras RGB-D 

    Fuertes Muñoz, Gabriel (Date of defense: 2023-04-28)

    KineActiv es un sistema que permite la rehabilitación de miembros superiores e inferiores de manera autónoma, no supervisada por un fisioterapeuta. Se ha desarrollado un entorno de realidad aumentada, usado cámaras RGB-D, ...

    Sobre la percepción de indicios en bocetos de ingeniería y su aplicación al modelado basado en bocetos 

    Plumed Ferrer, Raquel (Date of defense: 2014-12-19)

    <p>Los bocetos de ingeniería son un tipo importante de gráficos, porque ayudan a los diseñadores de productos industriales durante la fase más creativa del diseño conceptual. A tal fin, las aplicaciones informáticas de ...

    Sparse Linear System Solvers on GPUs: Parallel Preconditioning, Workload Balancing, and Communication Reduction 

    Flegar, Goran (Date of defense: 2019-06-21)

    With the breakdown of Dennard scaling in the mid-2000s and the end of Moore's law on the horizon, the high performance computing community is turning its attention towards unconventional accelerator hardware to ensure the ...