Contributions to the efficient use of general purpose coprocessors: kernel density estimation as case study

142 p.

Combination of web usage, content and structure information for diverse web mining applications in the tourism context and the context of users with disabilities

188 p.

Contributions to High-Throughput Computing Based on the Peer-to-Peer Paradigm

XII, 116 p.

Contributions on agreement in dynamic distributed systems

139 p.

Robotic control systems based on bioinspired multi-agent systems: application of the principles of neuroscience to robotics

Robotics is a field that presents a large number of problems because it depends on a large number of disciplines, devices, technologies and tasks. Its expansion from perfectly controlled industrial environments toward open and dynamic environment presents a many new challenges, such as robots household robots or professional robots. To facilitate the rapid development of robotic systems, low cost, reusability of code, its medium and long term maintainability and robustness are required novel approaches to provide generic models and software systems who develop paradigms capable of solving these problems. For this purpose, in this paper we propose a model based on multi-agent systems inspired by the human nervous system able to transfer the control characteristics of the biological system and able to take advantage of the best properties of distributed software systems.

Difusión masiva de información en los modelos de gestión de redes: aplicación a los servicios de alta disponibilidad sobre Internet

En la presente tesis se propone un modelo de gestión de redes que incorpora en su definición la gestión y difusión masiva de la información sobre redes no propietarias como Internet. Este modelo viene a solucionar uno de los problemas más comunes para cualquier aplicación, tanto de gestión como de usuario, proporcionando un mecanismo sencillo, intuitivo y normalizado para transferir grandes volúmenes de información, con independencia de su localización o los protocolos de acceso. Algunas de las características más notables del modelo se pueden sintetizar en las siguientes ideas. La creación de herramientas siguiendo el modelo permite que los desarrolladores de aplicaciones puedan centrarse en la lógica de la aplicación, en lugar de tener que resolver, generalmente a medida, el problema de la transferencia de grandes volúmenes de información. El modelo se ha concebido para ser compatible con los estándares existentes, tomando como base el marco de trabajo definido por ISO/IEC para sistemas OSI. Para que la difusión de la información se realice de forma escalable y con el menor impacto posible sobre la red de comunicaciones se ha propuesto un método de difusión fundamentando en técnicas colaborativas y de multicast. Las principales áreas de aplicaciones del modelo se encuentran en: los sistemas de gestión como las copias de seguridad en red, sistemas para la continuidad en el negocio y alta disponibilidad o los sistemas de mantenimiento de redes de computadoras; aplicaciones de usuario como las aplicaciones eBusiness, sistemas de compartición de archivos o sistemas multimedia; y, en general, cualquier tipo de aplicación que conlleve la transferencia de importantes volúmenes de información a través de redes de área amplia como Internet. Los principales resultados de la investigación son: un modelo de gestión de redes, un mecanismo de difusión de la información concretado en un protocolo de transporte y otro de usuario y una librería que implementa los protocolos propuestos. Para validar la propuesta se ha construido un escenario de pruebas real y se ha implementado el prototipo de un sistema de recuperación integral de nodos basado en el modelo y utilizando las librerías creadas. Las pruebas de escalabilidad, carga y tiempos de transferencia realizados sobre el prototipo han permitido verificar la validez e idoneidad de la propuesta comprobando que su aplicación es escalable respecto del tamaño del sistema gestionado, sencillo de implantar y compatible con los sistemas existentes.

Red de coordinación de la implantación del primer curso del Grado en Ingeniería en Sonido e Imagen

El profesorado de la red docente realizó durante el curso 2009/10 un proyecto para la planificación de las asignaturas del primer curso del Grado en Ingeniería en Sonido e Imagen de la Escuela Politécnica Superior, y nos toca ahora la puesta a punto del primer curso del Grado. En el marco creado por los nuevos estudios dentro del EEES, el proyecto tiene como objetivo principal es el seguimiento, coordinación, evaluación, y mejora de la planificación realizada el curso anterior ya con las nuevas experiencias.

System for robot control inspired by the functionality and organisation of the human nervous system

This paper presents a model of a control system for robot systems inspired by the functionality and organisation of human neuroregulatory system. Our model was specified using software agents within a formal framework and implemented through Web Services. This approach allows the implementation of the control logic of a robot system with relative ease, in an incremental way, using the addition of new control centres to the system as its behaviour is observed or needs to be detailed with greater precision, without the need to modify existing functionality. The tests performed verify that the proposed model has the general characteristics of biological systems together with the desirable features of software, such as robustness, flexibility, reuse and decoupling.

A new paradigm: cloud agile manufacturing

Cloud Agile Manufacturing is a new paradigm proposed in this article. The main objective of Cloud Agile Manufacturing is to offer industrial production systems as a service. Thus users can access any functionality available in the cloud of manufacturing (process design, production, management, business integration, factories virtualization, etc.) without knowledge — or at least without having to be experts — in managing the required resources. The proposal takes advantage of many of the benefits that can offer technologies and models like: Business Process Management (BPM), Cloud Computing, Service Oriented Architectures (SOA) and Ontologies. To develop the proposal has been taken as a starting point the Semantic Industrial Machinery as a Service (SIMaaS) proposed in previous work. This proposal facilitates the effective integration of industrial machinery in a computing environment, offering it as a network service. The work also includes an analysis of the benefits and disadvantages of the proposal.

Multi-agent system for control of robots inspired on the distributed activity and hormonal regulation of humans

Robotics is an emerging field with great activity. Robotics is a field that presents several problems because it depends on a large number of disciplines, technologies, devices and tasks. Its expansion from perfectly controlled industrial environments toward open and dynamic environment presents a many new challenges. New uses are, for example, household robots or professional robots. To facilitate the low cost, rapid development of robotic systems, reusability of code, its medium and long term maintainability and robustness are required novel approaches to provide generic models and software systems who develop paradigms capable of solving these problems. For this purpose, in this paper we propose a model based on multi-agent systems inspired by the human nervous system able to transfer the control characteristics of the biological system and able to take advantage of the best properties of distributed software systems. Specifically, we model the decentralized activity and hormonal variation.

Decomposition of human behavior using model of competencies: application to robotic control system

For many years, humans and machines have shared the same physical space. To facilitate their interaction with humans, their social integration and for more rational behavior has been sought that the robots demonstrate human-like behavior. For this it is necessary to understand how human behavior is generated, discuss what tasks are performed and how relate to themselves, for subsequent implementation in robots. In this paper, we propose a model of competencies based on human neuroregulator system for analysis and decomposition of behavior into functional modules. Using this model allow separate and locate the tasks to be implemented in a robot that displays human-like behavior. As an example, we show the application of model to the autonomous movement behavior on unfamiliar environments and its implementation in various simulated and real robots with different physical configurations and physical devices of different nature. The main result of this work has been to build a model of competencies that is being used to build robotic systems capable of displaying behaviors similar to humans and consider the specific characteristics of robots.

Overcoming resistance to change in business innovation processes

This paper summarizes the experience gained in dealing with resistance to change appeared in the companies when they develop innovative processes related to the adoption of new technologies, tools, equipment, infrastructure and methodologies. Technological innovation is rapidly absorbed by society on a personal level. But at the enterprise level, resistance to innovation can occur at any hierarchical level of the company and may appear with different intensity. Depending on the type of enterprise, the hierarchical level of the employee, the intensity of resistance and other factors, the measures taken are different. In this paper we summarize our experience in the cataloging of the resistance to innovation in terms of impact on workers and showing how technology education and business training can help overcome these resistance forces. This paper describes the experience acquired over 22 projects deployed in the period 2005 to 2011 and that has affected a total of 264 workers of different cultural, technological, business and hierarchical levels.

Data normalization and integration in robotic systems using web services technologies

The robotics is one of the most active areas. We also need to join a large number of disciplines to create robots. With these premises, one problem is the management of information from multiple heterogeneous sources. Each component, hardware or software, produces data with different nature: temporal frequencies, processing needs, size, type, etc. Nowadays, technologies and software engineering paradigms such as service-oriented architectures are applied to solve this problem in other areas. This paper proposes the use of these technologies to implement a robotic control system based on services. This type of system will allow integration and collaborative work of different elements that make up a robotic system.