Now showing items 36-55 of 94

    Extremely Low and Variable Bandwidth Image Compression with Region of Interest Applied to Real Time Underwater Robotic Interventions 

    Moscoso Rubino, Eduardo (Date of defense: 2018-04-11)

    A new fast and progressive set-partitioning image compression parallel algorithm with Region Of Interest (ROI) which outputs an embedded bit oriented rate-distortion optimized stream and addresses very low bit rate compression ...

    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 ...

    Flexible techniques for heterogeneous XML data retrieval 

    Sanz Blasco, Ismael (Date of defense: 2007-10-31)

    The progressive adoption of XML by new communities of users has motivated the appearance of applications that require the management of large and complex collections, which present a large amount of heterogeneity. Some ...

    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 ...

    Framework for the Implementation of a Big Data Ecosystem in Organizations 

    Orenga Roglá, Sergio (Date of defense: 2017-06-30)

    The core of this Ph.D. thesis is the development of a framework that serves as a guide for implementing ecosystems based on Big Data and Web 2.0 technologies in organizations. Unlike existing frameworks, this framework not ...

    Game Development Based on Multi-agent Systems 

    Marín Lora, Carlos (Date of defense: 2022-10-06)

    Video game development is a multidisciplinary process that requires both technical and artistic knowledge. Even though there are tools to ease the creation of video games, they are still complex applications that require ...

    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 ...

    Hacia un diseño óptimo de la arquitectura Multilayer Feedforward 

    Fernández Redondo, Mercedes (Date of defense: 2001-09-11)

    El objetivo de esta Tesis Doctoral ha sido básicamente el de realizar un estudio comparativo sobre los diferentes métodos existentes para resolver diversos aspectos referentes al diseño de la arquitectura de red neuronal ...

    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 ...

    "Horizon: Resilience": A Smartphone-based Serious Game Intervention for Depressive Symptoms 

    Gomez-Cambronero, Águeda (Date of defense: 2023-12-11)

    Depression is the most prevalent mental disorder in our society, leading to disability and suicide deaths. Although effective evidence-based psychological treatments exist, they reach only a fraction of those in need. ...

    Improving Data Fusion in User Positioning Systems 

    Pulido Herrera, Edith (Date of defense: 2009-09-17)

    A fault detection and correction methodology for user positioning systems based on Kalman filtering is presented in this thesis. To develop this methodology, various aspects of the design of positioning systems are taken ...

    Improving resource availability for geospatial information infrastructures 

    Dí­az Sánchez, Laura (Date of defense: 2010-05-07)

    Los sistemas de información construidos mediante servicios distribuidos basados en estándares se han convertido en el paradigma de computación adoptado por defecto por la comunidad geoespacial para la construcción de ...

    Integración de la Bioinformática en la Investigación Genómica Cardiovascular: Aplicaciones en el Framingham Heart Study 

    Coltell Simón, Oscar (Date of defense: 2004-10-08)

    El objetivo principal de esta tesis es la aplicación integrada de enfoques metodológicos de las disciplinas Ingeniería del Software y Auditoría de Sistemas de Información a la Bioinformática, en función de la identificación ...

    LODStrips:Continuous Level of Detail using Triangle Strips 

    Ramos Romero, Jose Francisco (Date of defense: 2008-04-29)

    In recent years, multiresolution models have progressed substantially. At the beginning, discrete models were employed in graphics applications, due mainly to the low degree of complexity involved in implementing them, ...

    Logic-based support for Ontology Development in Open Environments 

    Jiménez Ruiz, Ernesto (Date of defense: 2010-06-24)

    El sentido filosófico del término ontología hace referencia a la esencia misma del ser, a su existencia (onto=ser). Para un sistema inteligente lo que existe es lo que puede representarse. En informática una ontología se ...

    Machine learning-based techniques for indoor localization and human activity recognition through wearable devices 

    Sansano Sansano, Emilio (Date of defense: 2020-12-22)

    This thesis approaches the study of several machine learning techniques to improve the performance of indoor positioning systems, with a special focus on wearable and low-cost devices. It also presents some tools designed ...

    Making Biosignals Available 

    Alfaras Espinàs, Miquel (Date of defense: 2021-10-22)

    This thesis is an invitation to rethink how simplistic approaches to biosignal processing enrich the potential of personal sensing in line with the fast development of what have come to be undeniably ubiquitous technologies. ...

    Matrix computations on graphics processors and clusters of gpus 

    Igual Peña, Francisco Daniel (Date of defense: 2011-05-25)

    Las arquitecturas destinadas a computación de altas prestaciones (HPC) basadas en aceleradores gráficos (GPUs) se han convertido en los últimos años en una alternativa extendida que combina altas prestaciones y un bajo ...

    Metodología de predicción de rendimiento de aplicaciones MapReduce iterativas sobre una nube híbrida 

    Clemente Castelló, Fancisco José (Date of defense: 2017-06-15)

    El cloud-bursting (despliegue de nube híbrida que complementa temporalmente máquinas virtuales locales con máquinas vituales remotas) ha experimentado una rápida adopción entre los usuarios de análisis de big data. Sin ...

    Mixed Reality Human-Robot Interface for Robotic Operations in Hazardous Environments 

    Szczurek, Krzysztof Adam (Date of defense: 2023-10-23)

    This thesis addresses the need for reliable and immersive human-robot interfaces in hazardous environments. Three key goals were achieved. Firstly, techniques were developed to provide immersive interactions while ensuring ...