Now showing items 21-40 of 94

    Generalized least squares-based parametric motion estimation and segmentation 

    Montoliu Colás, Raúl (Date of defense: 2008-09-22)

    El análisis del movimiento es uno de los campos más importantes de la visión por computador. Esto es debido a que el mundo real está en continuo movimiento y es obvio que podremos obtener mucha más información de escenas ...

    Utilización del paralelismo multihebra en el precondicionado y la resolución iterativa de sistemas lineales dispersos 

    Martín Huertas, Alberto Fco. (Date of defense: 2010-07-15)

    La resolución eficiente de sistemas de ecuaciones lineales dispersos y de gran dimensión es uno de los problemas del álgebra lineal moderna que surge con mayor frecuencia en aplicaciones científicas e ingenieriles. La ...

    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 ...

    Data selection and spectral-spatial characterisation for hyperspectral image segmentation. Applications to remote sensing 

    Rajadell Rojas, Olga (Date of defense: 2013-12-17)

    El análisis de imágenes ha impulsado muchos descubrimientos en la ciencia actual. Esta tesis se centra en el análisis de imágenes remotas para inspección aérea, exactamente en el problema de segmentación y clasificación ...

    Energy-aware matrix computacion on multirhreaded architectures 

    Dolz Zaragozá, Manuel Francisco (Date of defense: 2014-03-21)

    Desde hace décadas, la computación de altas prestaciones ha concentrado sus esfuerzos en la optimización de algoritmos aplicados a la resolución de problemas complejos que aparecen en un amplio abanico de aplicaciones de ...

    Face gender classification under realistic conditions. Dealing with neutral, expressive and partially occluded faces 

    Andreu Cabedo, Yasmina (Date of defense: 2014-09-09)

    Esta tesis se centra en la clasificación de género a partir de imágenes faciales tratando el problema con un enfoque más realista que el tradicionalmente utilizado en la literatura. En entornos reales, pueden surgir varios ...

    Diseño de un sistema de comunicaciones para virtualización remota de aceleradores gráficos sobre sistemas heterogéneos 

    Roca Sanz, Vicente Ramón (Date of defense: 2015-12-21)

    El consumo de energía es una de las principales preocupaciones en el diseño de cualquier sistema de HPC y ha sido recientemente reconocido como uno de los grandes retos para alcanzar el siguiente hito en el rendimiento ...

    Modeling and analyzing opinions from customer reviews 

    García Moya, Lisette (Date of defense: 2016-01-11)

    The main motivation behind this thesis is the problem of aspect-based sentiment summarization and its application to Business Intelligence (BI). Given a collection of opinion posts, aspect-based summarization has to do ...

    Discovering and Describing Coherent and Meaningful Topics from Document Collections 

    Anaya Sánchez, Henry (Date of defense: 2016-01-25)

    The main motivation behind this thesis is the problem of automatically discovering and describing coherent and meaningful topics underlying a target collection of text documents; where a topic is a theme that runs through ...

    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 ...

    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 ...

    Computación de altas prestaciones en genómica 

    Martínez Pérez, Héctor (Date of defense: 2020-01-28)

    Esta tesis se centra en la aplicación de técnicas de computación de altas prestaciones a dos problemas bioinformáticos. La primera parte del trabajo ha consistido en el desarrollo de un software eficiente para el alineamiento ...

    Analysis and Development of a Platform for Generating Context-Aware Apps for Mental Health 

    Miralles Tena, Ignacio (Date of defense: 2019-12-19)

    This work gathers a research carried out on the use of context-aware technologies in their application to the field of mental health. It starts performing a review of mobile technologies used in psychological interventions ...

    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 ...

    Aplicación de la visión artificial a la manipulación robótica en el contexto de la intervención subacuática 

    Fornas García, David (Date of defense: 2019-02-06)

    En esta tesis se describe un sistema integral para la manipulación de objetos guiada por visión en escenarios subacuáticos en el contexto de la arqueología. El sistema propuesto consiste en la reconstrucción en 3D del ...

    Framework for Autonomous Underwater Grasping of Unknown Objects 

    Peñalver Monfort, Antonio (Date of defense: 2018-11-30)

    This thesis studies the problem of autonomously grasping an unknown object in an underwater scenario using an I-AUV. Firstly, a new approach to autonomously obtain an accurate and complete 3D reconstruction of an object ...

    High-throughput Computation through Efficient Resource Management 

    Iserte Agut, Sergio (Date of defense: 2018-11-23)

    This proposal addresses, from two different approaches, the improvement of data centers productivity through an efficient resource management. On the one hand, the combination of GPU remote virtualization technologies with ...

    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 ...

    Application and use of quality metrics for the prediction of grasp success and evaluation of artificial hands 

    Rubert Escuder, Carlos (Date of defense: 2018-10-08)

    Artificial manipulation has been one of the main areas of interest in robotics for decades. Finding a proper grasp to seize objects and design robotic hands capable of such grasps are two of the main problems in such ...

    Unification of Lightweight Thread Solutions and their Application in High Performance Programming 

    Castelló Gimeno, Adrián (Date of defense: 2018-10-02)

    Lightweight thread (LWT) libraries have been developed to tackle fine-grained and dynamic software requirements. These libraries are based on the concept of threads that are managed in the user-space. This thesis aims ...