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https://hdl.handle.net/20.500.14454/1637

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Solidarity-based enterprises: new comprising concept for the enterprise of the future
(CIRIEC-ESPAÑA - International Center of Research and Information on the Public and Cooperative Economy, Spanish National Section (Centro Internacional de Investigación e Información sobre la Economía Pública, Social y Cooperativa), 2005) Retolaza Ávalos, José Luis; Mugarra Elorriaga, Aitziber; Enciso-Santocildes, Marta
A generic matching algorithm for semantic discovery
(IEEE, 2007) Aguilera, Unai; Abaitua, Joseba; Díaz Labrador, Josuka; Buján Carballal, David; López de Ipiña González de Artaza, Diego
This paper presents a generic semantic discovery algorithm, based in OWL, for UDDI registries that is not bound to any specific ontology or concepts from it. It enables to match instances and properties without specifically knowing the ontologies being matched and it enables to use all concepts contained in the request resulting in a matching closer to the user needs. Also, the generality of the proposed algorithm enables to change the ontology being used to describe an element in the registry without needing to modify the algorithm and therefore, it enables to use other OWL ontologies to describe the information stored in the registry
A semantic matching algorithm for discovery in UDDI
(IEEE, 2007) Aguilera, Unai; Abaitua, Joseba; Díaz Labrador, Josuka; Buján Carballal, David; López de Ipiña González de Artaza, Diego
One of the key objectives of web service technology is to construct processes that enable service providers to interconnect with their clients. The industry has developed the UDDI registry to enable the register of services and to make them available to their users. However, the keyword-based search of UDDI frequently return no results because there is no relation between the concepts used by the providers and those used by the clients. This paper presents an UDDI registry extended with semantic functionality by means of a generic semantic discovery algorithm that is not bound to any specific ontology or concepts from it. It enables to match instances and properties without specifically knowing the ontologies being matched. Furthermore, we present an ontology which represents the information associated with a business entity in UDDI, and which enables users to register and search business information semantically also using the former algorithm
Internet browsing through RFID-powered gadgets
(IOS Press, 2009) Muguira Urtubi, Leire; Ruiz de Garibay Pascual, Jonathan; Vazquez, Juan-Ignacio
The vision of the Internet of Things is challenging researchers from different fields with the common goal of designing innovative Internet-connected experiences or augmenting existing objects' capabilities with Internet-related features. During these first stages, researchers must explore new ways and concepts, and share the results with the scientific community. In this paper, we present our work on creating RFID-based smart gadgets in order to take Internet experience to the next level, merging the on-line and the tangible worlds into a single continuous space.
Interacting with the digital world through RFID-powered gadgets
(IEEE, 2009) Muguira Urtubi, Leire; Ruiz de Garibay Pascual, Jonathan; Vazquez, Juan-Ignacio
The Internet of Things is a field of the Future Internet that has a significant support from different institutions. Research has been done in this area for years and although it has progressed significantly, their goals remain the same: designing innovative Internet-connected experiences and augmenting existing objects' capabilities with Internet-related features. The scientific community has explored new ways and concepts, such as, service generation and consumption or user interaction. In this paper we present our work on creating RFID-based smart gadgets in order to take Internet experience to the next level, merging the on-line and the tangible worlds into a single continuous space.
A model of non functional properties for grid resources
(Springer, 2009) Buján Carballal, David; Corcho García, Óscar; Díaz Labrador, Josuka
So far, Grid information providers basically give functional values about resources, although some of them also provide aggregated information. Therefore, existing Grid information models essentially represent this syntactic information and also propose different taxonomies of resources. Hence, Grid information consumers commonly use functional properties to select resources in order to send jobs to a Grid. There are some approaches that try to use isolated techniques to take into consideration some QoS properties, like performance. In this paper, we propose a unified model for representing Grid resources and their non functional properties, adding semantics to Grid information systems. On one hand, this model is an ontology-based model developed to integrate existing approaches of Grid information models and non functional properties representations in general. But on the other hand, our model also proposes a measuring system - currently in development - for some non functional properties like reliability, availability and performance. Here we only present an overview about how to represent and measure reliability information of resources in Grids. This example is used to illustrate our work in progress.
RFIDGlove: a wearable RFID reader
(IEEE, 2009) Muguira Urtubi, Leire; Vazquez, Juan-Ignacio; Arruti, Asier; Ruiz de Garibay Pascual, Jonathan; Mendia, Izaskun; Renteria, Silvia
There are different experiences in the use of RFID technology for warehouse inventories. However, there is future work to do on the design of advanced reading devices, applying wearable computation techniques and wireless communications. The aim of this work is to allow a natural interaction for the user who performs inventory tasks. In this paper we show the RFIDGlove system, which consists of a glove with an integrated RFID reader, an organic micro display and a communication system. The RFIDGlove system increases the efficiency of the activities in these areas, improving the user's experience and comfort while he/she uses the system. © 2009 IEEE.
Architecture for WSN nodes integration in context aware systems using semantic messages
(Springer, 2010) Larizgoitia, Iker; Muguira Urtubi, Leire; Vazquez, Juan-Ignacio
Wireless sensor networks (WSN) are becoming extremely popular in the development of context aware systems. TraditionallyWSN have been focused on capturing data, which was later analyzed and interpreted in a server with more computational power. In this kind of scenario the problem of representing the sensor information needs to be addressed. Every node in the network might have different sensors attached; therefore their correspondent packet structures will be different. The server has to be aware of the meaning of every single structure and data in order to be able to interpret them.Multiple sensors, multiple nodes, multiple packet structures (and not following a standard format) is neither scalable nor interoperable. Context aware systems have solved this problem with the use of semantic technologies. They provide a common framework to achieve a standard definition of any domain. Nevertheless, these representations are computationally expensive, so a WSN cannot afford them. The work presented in this paper tries to bridge the gap between the sensor information and its semantic representation, by defining a simple architecture that enables the definition of this information natively in a semantic way, achieving the integration of the semantic information in the network packets. This will have several benefits, the most important being the possibility of promoting every WSN node to a real semantic information source. © 2010 ICST Institute for Computer Sciences, Social-Informatics and Telecommunications Engineering.
An environment adaptive ZigBee-based indoor positioning algorithm
(IEEE, 2010) Larrañaga, Janire; Muguira Urtubi, Leire; López Garde, Juan Manuel; Vazquez, Juan-Ignacio
Lately, there has been significant progress in the field of wireless communications and networking. Furthermore, the number of applications that require context information as the user's location will increase in the coming years. However, this issue still has not been solved indoors due to the RF (Radio Frequency) signals' behaviour in this kind of scenarios. In this paper, we present a robust, easy to deploy and flexible indoor localization system based on ZigBee Wireless Sensor Networks. It is important to mention that our localization system is based on RSSI (Received Signal Strength Indicator) level measurements since this information can be obtained directly from the messages exchanged between nodes, so no extra hardware is required. Our localization system consists of two phases: calibration and localization. Anytime a blind node needs to be located, our system performs calibration using a matrices system, so that the environment can be characterized, taking into account possible changes on it since the last request. Then, in the localization phase, the central server processes all the information and calculates the blind node's position with the new iterative algorithm we present. With this indoor positioning algorithm we can estimate the blind node's position with a good resolution (3 m average error), so we can say that this ZigBee localization algorithm provides very promising results.
New approaches in context modelling for tourism applications
(Springer Berlin, 2012) Buján Carballal, David; Martín, David; Torices, Ortzi; Uriarte, Aritz
The notion of context has been widely studied and there are several authors that have proposed different definitions of context. However, context has not been widely studied in the framework of human mobility and the notion of context has been directly imported from other computing fields without specifically addressing the tourism domain requirements. In order to store and manage context information a context data model is needed. Ontologies have been widely used in context modelling, but many of them are designed to be applied in general ubiquitous computing environments, do not contain specific concepts related to the tourism domain or some approaches do not contain enough concepts to represent context information related to the visitor or tourist on the move as we need in the TourExp project. That is why we propose a new approach to provide a better solution to model context data in tourism environments, adding more value to our solution reusing Open Data about tourist resources from Open Data Euskadi initiative and publishing it as Linked Data
WebLab-Deployer: exporting remote laboratories as SaaS through federation protocols
(IEEE, 2013) Orduña Fernández, Pablo; Larrakoetxea, Xabier; Buján Carballal, David; Angulo Martínez, Ignacio; Dziabenko, Olga; Rodríguez Gil, Luis; López de Ipiña González de Artaza, Diego; García-Zubía, Javier
During the last decade, remote laboratories have been extensively used as a primary learning tool in many universities around the world. However, today most of the remote laboratories are still only used by the same institution that provides or even develops them, or by direct partners in federated environments. There are two ways to support this type of federation: a) using a federated authentication system such as Shibboleth or b) installing a remote laboratory management system that supports federation natively. In both cases, the consumer institution must go through a process of deployment or complex configuration. This contribution explores providing access to laboratories using a Cloud Computing approach, considering the federated environments that do not have laboratories attached as a SaaS (Software as a Service) system. This approach not only makes adoption by other institutions easier, but also benefits from the existing features provided by Cloud Computing, such as elasticity to reuse the same resources for different institutions to balance the load
Diversidad empresarial en Europa: nuevos aires de responsabilidad y emprendimiento social
(Universidad de Deusto = Deustuko Unibertsitatea, Servicio de Publicaciones = Argitalpen Zerbitzua, 2013) Mugarra Elorriaga, Aitziber; Enciso-Santocildes, Marta; Echaniz Barrondo, Arantza
Consideraciones generales sobre la Mediación Civil y Mercantil, a próposito de la Ley 5/2012, de 6 de julio, de Mediación en Asuntos Civiles y Mercantiles
(J.M. Bosch, 2014) Larena Beldarrain, Javier
¿Qué nuevas demandas educativas, investigadoras y de servicio a la sociedad de los alumnos mayores no están todavía incorporadas de manera generalizada en nuestra oferta formativa?: propuesta de la Universidad de Deusto: DeustoBide-Escuela de Ciudadanía
(Editorial Universidad de Granada, 2015) Lázaro Fernández, Yolanda
Es una realidad que cada vez son más las personas que llegan a edades más avanzadas en nuestro entorno y que lo hacen en condiciones notablemente mejores que en épocas anteriores. Actualmente la nueva generación de personas mayores que nos encontramos tiene una experiencia significativa y presentan posibilidades de mantenerse socialmente activas y participativas. Y uno de esos planos sociales de participación es el ámbito educativo. En todas las edades, la educación cumple una importante función socializadora y ayuda a establecer relaciones de pertenencia y de intercambio y esto no es distinto en las personas adultas mayores. Esta presentación trata de mostrar qué tipo de demandas presentan el millar de personas que acuden a las propuestas formativas que desde la Universidad de Deusto venimos desarrollando para un público adulto. Un recorrido de seis programas con duración y dedicación diferentes desarrollados a lo largo de veinte años y una marcada identidad jesuita son algunos de los rasgos que nos acompañan y que nos animan a seguir trabajando en el empoderamiento de la ciudadanía, para que sepamos hacer uso de las capacidades que en cada momento de la vida tenemos para vivir más plenamente tanto individual como colectivamente.
Ambientes interculturales y pluritecnológicos desarrollan el aprendizaje de las matemáticas en y para la diversidad
(Editorial Universidad de Granada, 2015) Flores López, William Oswaldo; Auzmendi, Elena
Un hacer natural en el aprendizaje de las matemáticas que es objeto de su enseñanza, son los ambientes interculturales y pluritecnológicos. Ambientes que no puede limitarse a distribuir contenidos sino que le supone proponer un conjunto de actividades y de tareas que orienten las experiencias en las que participarán los estudiantes, teniendo como referencia la diversidad y la incorporación de tecnología. Así, los profesores, han de asumir como una de sus tareas, que delimitan y caracterizan su actuación, el seleccionar, organizar, y planificar las experiencias de aprendizaje necesarias para que un estudiantes aprenda en ambientes diversos
Integración de las tecnologías de la información y comunicación en la formación de profesores de matemáticas en y para la diversidad
(Editorial Universidad de Granada, 2015) Flores López, William Oswaldo; Auzmendi, Elena
Esta comunicación sobre la Integración de las Tecnologías de la Información y Comunicación en procesos de formación de profesores de matemáticas en y para la diversidad, constituye un potencial para el desarrollo y la formación profesional de profesor de matemáticas y presentan el uso de tecnologías como una mediación para una educación matemática en y para la diversidad. Esta es una reflexión que, a su vez, articula el componente de integración tecnológico en los ambientes mediados por TIC, los diseños didácticos, la gestión didáctica y la evaluación educativa
Agent based simulations for the estimation of sustainability indicators
(Elsevier B.V., 2015) Pijoan Lamas, Ander; Borges Hernández, Cruz E.; Oribe Garcia, Iraia; Martín Andonegui, Cristina; Alonso Vicario, Ainhoa
We present a methodology to improve the estimation of several Sustainability Indicators based on the measurement of walking distance to infrastructures combining Agent Based Simulation with Volunteer Geographic Information. Joining these two forces we construct a more realistic and accurate distribution of the infrastructures based on knowledge created by citizens and their perceptions instead of official data sources. A Situated Multi-Agent System is in charge of simulating not only the functional disparity and sociodemographic characteristics of the population but also the geographic reality in a dynamic way. Namely, the system will analyze different geographic barriers for each collective bringing new possibilities to improve the assessment of the needs of the population for a more sustainable development of the city. In this article we will describe the methodology to carry on several sustainability indicator measurements and present the results of the proposed methodology applied to several municipalities.
Maximizing harvested energy for linear vibration-based generators
(Elsevier Ltd, 2015) Eguiluz Urizar, Xabier; Legarda Macon, Jon; Mateu, Loreto; Zessin, Henrik; Spies, Peter
This work presents a new method that increases the energy conversion for linear vibration-based generators. Actually, these generators are chosen to have their resonance frequency equal to the ambient vibration frequency that provides the maximum power amplitude of the acceleration. Nevertheless, there is a resonance frequency at which the acceleration power amplitude is lower but the energy is substantially higher since ambient vibration signals have several frequency components. A new method performing a spectrogram analysis, which does not miss the temporal information, as the Discrete Fourier Transform (DFT) analysis does, is realized. Thus, the harvested energy is considered instead of the harvested power. The method presented in this paper is validated with several real experiments.
El Turismo Chino ¿Una oportunidad real?
(Iris-Copy, 2015) Pastor Ruiz, Ricardo
Según la OMT, en el año 2020 el número de turistas chinos que salgan de su territorio por motivos exclusivamente de ocio sobrepasarán la barrera de los cien millones. Así lo indica el Ministerio de Industria, Comercio y Turismo de España en su Plan Turismo Chino de 2012. Terminado el año 2014, esta barrera ha sido superada. Aunque la mayoría aún viaja a lugares situados dentro de sus límites de influencia, el número de turistas que viajan más lejos crece exponencialmente. Y no sólo se trata del número de visitantes sino de la calidad del turismo que exporta ya que está a la cabeza en gasto durante el viaje. De la parte que viaja a Europa, una parte muy pequeña se queda en España. ¿Qué podemos hacer para que esta situación se revierta? ¿Cómo es y qué busca el turista chino cuando viaja por Europa? ¿Está preparada España como destino para este turista? ¿Cuáles son las claves para conseguir una adaptación acorde con los gustos y el sentir de este turista? ¿Hacen las autoridades todo lo necesario para crear en el mercado chino un interés creciente? Y la más importante de todas. ¿Debe tratarse el turismo chino de una manera diferenciada? Todas estas preguntas serán respondidas en este estudio que tiene por objetivo conocer al turista chino y descubrir las claves que pueden hacer que se incrementen las visitas de estos viajeros a España.
A comparative study on the performance of evolutionary fuzzy and crisp rule based classification methods in congestion prediction
(Elsevier B.V., 2016) Onieva Caracuel, Enrique; López García, Pedro ; Masegosa Arredondo, Antonio David ; Osaba, Eneko ; Perallos Ruiz, Asier
Accurate estimation of the future state of the traffic is an attracting area for researchers in the field of Intelligent Transportation Systems (ITS). This kind of predictions can lead to traffic managers and drivers to act in consequence, reducing the economic and social impact of a possible congestion. Due to the inter-urban traffic information nature, the task of predicting the future state of the traffic requires, in most cases, a non-linear patterns search in the input data. In recent years, a wide variety of models has been used to solve this problem in the most accurate way. Due to that, models generated to provide information about the future state of the road are, usually, incomprehensible to a human operator, making impossible to give him/her an explanation about the causes of the prediction. Given the capacity of rule based systems to explain the reasoning followed to classify a new pattern, the advantages and disadvantages of such approaches are explored in this work. To conduct such task, datasets recorded from the California Department of Transportation are created. A 9-kilometer section of the I5 highway of Sacramento is used for this research. Two different types of datasets are built for the experimentation. One of them contains the entire information recorded. The other one contains with a simplified version of the information, considering only the first, middle and last monitored points of the road. Twelve prediction horizons, from 5 to 60 minutes, were considered for prediction. An experimental comparative study involving 16 state of the art techniques is performed. Techniques tested include those that fall within the categories of Evolutionary Crisp Rule Learning (ECRL) and Evolutionary Fuzzy Rule Learning (EFRL). These methods were selected since they offer to the final user, not only a prediction, but also a legible model about the way in which the decision was taken. Techniques are compared in terms of accuracy and complexity of the models generated.

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