41 research outputs found

    Framework para la generación de video juegos educativos en sistemas de realidad aumentada : Líneas de investigación del grupo de realidad aumentada aplicada

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    El presente proyecto se orienta al desarrollo de juegos educativos en el contexto de realidad aumentada a fin de generar juegos educativos con una mecánica similar al de juego la oca, alimentado por los contenidos publicados en el sistema de catálogos aumentados, facilitando una herramienta lúdica dinámica y colaborativa para entornos educativos. Se propone que el editor web del sistema de catalogo aumentado permita al usuario armar categorías de preguntas y respuestas a partir de contenidos virtuales y marcadores del sistema para que sean utilizados en el visor de realidad aumentada. El mismo se busca ampliarlo con una nueva funcionalidad que permita reproducir la mecánica del juego de preguntas y respuestas.Eje: Tecnología Informática Aplicada en Educación.Red de Universidades con Carreras en Informátic

    Framework para la generación de templates en sistema de catálogos de realidad aumentada

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    Se presenta el desarrollo de un sistema de aumentación de metacontenidos sobre las bases del sistema de catálogo virtuales aumentados, a fin de mejorar la usabilidad del sistema original para los usuarios no expertos. Se propone pues la incorporación del concepto de template de aumentación de la realidad para los catálogos de realidad aumentada. Los mismos permiten predefinir la cantidad y tipos de contenidos de realidad aumentada, junto con sus transformaciones geométricas y el orden de visualización relativo al resto de los elementos. Así, al aplicarlo a un catálogo aumentado, ayudará a mantener un formato uniforme entre todos sus marcadores, como también simplificará la carga del material a aumentar por parte de los usuarios no expertos al incorporar terminologías propias del tema de explotación de dicho catálogo.X Workshop Innovación en Sistemas de Software (WISS)Red de Universidades con Carreras en Informática (RedUNCI

    Desarrollo de un prototipo de realidad aumentada de tipo geoespacial

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    El proyecto colaborativo comprende el desarrollo de un prototipo basal de aplicación de Realidad Aumentada para dispositivos móviles con base tecnológica en un sistema GIS (Sistema de Información Geográfica), que permita analizar la factibilidad técnica de futuros desarrollos de productos en los cuales se visualicen elementos geoposicionados en un ambiente de realidad aumentada. Se busca definir una arquitectura que permita el desarrollo del prototipo, estandarizar y generar datos a proyectar, definir e implementar técnicas de proyección de coordenadas, implementar procesos de localización y visualización así como desarrollar una mínima interfaz gráfica de usuario.Sociedad Argentina de Informática e Investigación Operativ

    Desarrollo de un prototipo de realidad aumentada de tipo geoespacial

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    El proyecto colaborativo comprende el desarrollo de un prototipo basal de aplicación de Realidad Aumentada para dispositivos móviles con base tecnológica en un sistema GIS (Sistema de Información Geográfica), que permita analizar la factibilidad técnica de futuros desarrollos de productos en los cuales se visualicen elementos geoposicionados en un ambiente de realidad aumentada. Se busca definir una arquitectura que permita el desarrollo del prototipo, estandarizar y generar datos a proyectar, definir e implementar técnicas de proyección de coordenadas, implementar procesos de localización y visualización así como desarrollar una mínima interfaz gráfica de usuario.Sociedad Argentina de Informática e Investigación Operativ

    Desarrollo de un prototipo de realidad aumentada de tipo geoespacial

    Get PDF
    El proyecto colaborativo comprende el desarrollo de un prototipo basal de aplicación de Realidad Aumentada para dispositivos móviles con base tecnológica en un sistema GIS (Sistema de Información Geográfica), que permita analizar la factibilidad técnica de futuros desarrollos de productos en los cuales se visualicen elementos geoposicionados en un ambiente de realidad aumentada. Se busca definir una arquitectura que permita el desarrollo del prototipo, estandarizar y generar datos a proyectar, definir e implementar técnicas de proyección de coordenadas, implementar procesos de localización y visualización así como desarrollar una mínima interfaz gráfica de usuario.Sociedad Argentina de Informática e Investigación Operativ

    Measurement of the cosmic ray spectrum above 4×10184{\times}10^{18} eV using inclined events detected with the Pierre Auger Observatory

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    A measurement of the cosmic-ray spectrum for energies exceeding 4×10184{\times}10^{18} eV is presented, which is based on the analysis of showers with zenith angles greater than 6060^{\circ} detected with the Pierre Auger Observatory between 1 January 2004 and 31 December 2013. The measured spectrum confirms a flux suppression at the highest energies. Above 5.3×10185.3{\times}10^{18} eV, the "ankle", the flux can be described by a power law EγE^{-\gamma} with index γ=2.70±0.02(stat)±0.1(sys)\gamma=2.70 \pm 0.02 \,\text{(stat)} \pm 0.1\,\text{(sys)} followed by a smooth suppression region. For the energy (EsE_\text{s}) at which the spectral flux has fallen to one-half of its extrapolated value in the absence of suppression, we find Es=(5.12±0.25(stat)1.2+1.0(sys))×1019E_\text{s}=(5.12\pm0.25\,\text{(stat)}^{+1.0}_{-1.2}\,\text{(sys)}){\times}10^{19} eV.Comment: Replaced with published version. Added journal reference and DO

    Energy Estimation of Cosmic Rays with the Engineering Radio Array of the Pierre Auger Observatory

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    The Auger Engineering Radio Array (AERA) is part of the Pierre Auger Observatory and is used to detect the radio emission of cosmic-ray air showers. These observations are compared to the data of the surface detector stations of the Observatory, which provide well-calibrated information on the cosmic-ray energies and arrival directions. The response of the radio stations in the 30 to 80 MHz regime has been thoroughly calibrated to enable the reconstruction of the incoming electric field. For the latter, the energy deposit per area is determined from the radio pulses at each observer position and is interpolated using a two-dimensional function that takes into account signal asymmetries due to interference between the geomagnetic and charge-excess emission components. The spatial integral over the signal distribution gives a direct measurement of the energy transferred from the primary cosmic ray into radio emission in the AERA frequency range. We measure 15.8 MeV of radiation energy for a 1 EeV air shower arriving perpendicularly to the geomagnetic field. This radiation energy -- corrected for geometrical effects -- is used as a cosmic-ray energy estimator. Performing an absolute energy calibration against the surface-detector information, we observe that this radio-energy estimator scales quadratically with the cosmic-ray energy as expected for coherent emission. We find an energy resolution of the radio reconstruction of 22% for the data set and 17% for a high-quality subset containing only events with at least five radio stations with signal.Comment: Replaced with published version. Added journal reference and DO

    Measurement of the Radiation Energy in the Radio Signal of Extensive Air Showers as a Universal Estimator of Cosmic-Ray Energy

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    We measure the energy emitted by extensive air showers in the form of radio emission in the frequency range from 30 to 80 MHz. Exploiting the accurate energy scale of the Pierre Auger Observatory, we obtain a radiation energy of 15.8 \pm 0.7 (stat) \pm 6.7 (sys) MeV for cosmic rays with an energy of 1 EeV arriving perpendicularly to a geomagnetic field of 0.24 G, scaling quadratically with the cosmic-ray energy. A comparison with predictions from state-of-the-art first-principle calculations shows agreement with our measurement. The radiation energy provides direct access to the calorimetric energy in the electromagnetic cascade of extensive air showers. Comparison with our result thus allows the direct calibration of any cosmic-ray radio detector against the well-established energy scale of the Pierre Auger Observatory.Comment: Replaced with published version. Added journal reference and DOI. Supplemental material in the ancillary file

    (edited by) Proceedings of the 31st Annual ACM Symposium on Applied Computing, SAC 2016, Special track on service-oriented architectures and programming (SOAP)

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    The SOAP track aims at bringing together researchers and practitioners having the common objective of transforming Service-Oriented Programming (SOP) into a mature discipline with both solid scientific foundations and mature software engineering development methodologies supported by dedicated tools. From the foundational point of view, many attempts to use formal methods for specification and verification in this setting have been made. Session correlation, service types, contract theories, and communication patterns are only a few examples of the aspects that have been investigated. Moreover, several formal models based upon automata, Petri nets and algebraic approaches have been developed. However, most of these approaches concentrate only on a few features of service-oriented systems in isolation, and a comprehensive approach is still lacking. From the engineering point of view, there are open issues at many levels. Among others, at the system design level, both traditional approaches based on UML and approaches taking inspiration from Business Process Modelling, e.g. BPMN, are used. At the composition level, orchestration and choreography are continuously being improved both formally and practically, with an evident need for their integration in the development process. At the description and discovery level, there are two separate communities pushing respectively the semantic approach (like ontologies and OWL) and the syntactic one (like WSDL). In particular, the role of discovery engines and protocols is not clear. In this respect, adopted standards are still missing. UDDI looked to be a good candidate, but it is no longer pushed by the main corporations, and its wide adoption seems difficult. Furthermore, a recent implementation platform, the so-called REST services, is emerging and competing with classic Web Services. Finally, features like Quality of Service, security, and dependability need to be taken seriously into account. SOAP in particular encouraged submissions on what SOP still needs in order to achieve the above goals. The PC of SOAP 2016 was formed by: • Farhad Arbab Leiden University and CWI, Amsterdam, NL • Luís Barbosa University of Minho, Braga, PT • Massimo Bartoletti Università di Cagliari, IT • Maurice H. ter Beek ISTI-CNR, Pisa, IT (co-chair) • Marcello M. Bersani Politecnico di Milano, IT • Laura Bocchi University of Kent, UK • Roberto Bruni Università di Pisa, IT • Marco Carbone IT University of Copenhagen, DK • Romain Demangeon Université Pierre et Marie Curie, FR • Schahram Dustdar Vienna University of Technology, AT • Alessandra Gorla IMDEA Software Institute, Madrid, ES • Vasileios Koutavas Trinity College Dublin, IE • Alberto Lluch Lafuente Technical University of Denmark, DK • Manuel Mazzara Innopolis University, RU • Hernán Melgratti University of Buenos Aires, AR (co-chair) • Nicola Mezzetti University of Trento, IT • Corrado Moiso Telecom Italia, IT • Alberto Núñez Universidad Complutense de Madrid, ES • Jorge A. Perez University of Groningen, NL • Gustavo Petri Purdue University, USA • António Ravara New University of Lisbon, PT • Steve Ross-Talbot Cognizant Technology Solutions, UK • Gwen Salaün Inria Grenoble - Rhône-Alpes, FR • Francesco Tiezzi Università di Camerino, IT • Hugo Torres Vieira IMT Lucca, IT (co-chair) • Emilio Tuosto University of Leicester, UK • Massimo Vecchio Università degli Studi eCampus, IT • Peter Wong Travelex, UK • Yongluan Zhou University of Southern Denmark, DK SOAP 2016 received a total of 16 submissions. Each submission was reviewed by at least 4 PC members, the vast majority even by 5 PC members. All papers were subject to an animated general discussion among the PC members (with over 100 posts in the message boards). In the end, the PC decided to select only the following four papers for an oral presentation at the conference (an acceptance rate of 25%): • JxActinium: a runtime manager for secure REST-ful COAP applications working over JXTA by Filippo Battaglia, Giancarlo Iannizzotto, and Lucia Lo Bello • Improving QoS Delivered by WS-BPEL Scenario Adaptation through Service Execution Parallelization by Dionisis Margaris, Costas Vassilakis, and Panagiotis Georgiadis • QoS-aware Adaptation for Complex Event Service by Feng Gao, Muhammad Ali, Edward Curry, and Alessandra Mileo • Service functional testing automation with intelligent scheduling and planning by Lom Messan Hillah, Ariele-Paolo Maesano, Libero Maesano, Fabio De Rosa, Fabrice Kordon, and Pierre-Henri Wuillemin We would like to thank the PC members, and a few external reviewers, for their detailed reports and the stimulating discussions during the reviewing phase; the authors of submitted papers, the session chairs and the attendees, for contributing to the success of the event; the providers of the START system, which was used to manage the submissions; and in particular all the organizers of SAC 2016, for their invitation to organize this track and for all their excellent assistance and support
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