22 resultados para 090903 Geospatial Information Systems


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This paper discusses how agent technology can be applied to the design of advanced Information Systems for Decision Support. In particular, it describes the different steps and models that are necessary to engineer Decision Support Systems based on a multiagent architecture. The approach is illustrated by a case study in the traffic management domain.

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This paper is about analysis and assess of three experiences on telematic and electronic voting dealing with such aspects as security and achievement of the social requirements. These experiences have been chosen taking into account the deepness of the public documentation and the technological challenge they faces.

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This paper is about analysis and assess of three experiences on telematic and electronic voting dealing with such aspects as security and achievement of the social requirements. These experiences have been chosen taking into account the deepness of the public documentation and the technological challenge they faces.

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Due to the advancement of both, information technology in general, and databases in particular; data storage devices are becoming cheaper and data processing speed is increasing. As result of this, organizations tend to store large volumes of data holding great potential information. Decision Support Systems, DSS try to use the stored data to obtain valuable information for organizations. In this paper, we use both data models and use cases to represent the functionality of data processing in DSS following Software Engineering processes. We propose a methodology to develop DSS in the Analysis phase, respective of data processing modeling. We have used, as a starting point, a data model adapted to the semantics involved in multidimensional databases or data warehouses, DW. Also, we have taken an algorithm that provides us with all the possible ways to automatically cross check multidimensional model data. Using the aforementioned, we propose diagrams and descriptions of use cases, which can be considered as patterns representing the DSS functionality, in regard to DW data processing, DW on which DSS are based. We highlight the reusability and automation benefits that this can be achieved, and we think this study can serve as a guide in the development of DSS.

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The implementation of Internet technologies has led to e-Manufacturing technologies becoming more widely used and to the development of tools for compiling, transforming and synchronising manufacturing data through the Web. In this context, a potential area for development is the extension of virtual manufacturing to performance measurement (PM) processes, a critical area for decision making and implementing improvement actions in manufacturing. This paper proposes a PM information framework to integrate decision support systems in e-Manufacturing. Specifically, the proposed framework offers a homogeneous PM information exchange model that can be applied through decision support in e-Manufacturing environment. Its application improves the necessary interoperability in decision-making data processing tasks. It comprises three sub-systems: a data model, a PM information platform and PM-Web services architecture. A practical example of data exchange for measurement processes in the area of equipment maintenance is shown to demonstrate the utility of the model.

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Este proyecto tiene como objetivo ampliar, mediante la caracterización espectral y multitemporal por técnicas de teledetección y medidas in situ, el estudio del corredor fluvial para el río Tinguiririca en Chile. Consiste en estudiar la cobertura del terreno, evaluar su dinámica de cambio e identificar zonas de acumulación de materiales de alteración hidrotermal arcillosos y óxidos de hierro, presentes en la cuenca durante las últimas tres décadas que puedan explicar su evolución temporal. Se pretenden obtener nuevas variables geoespaciales que ayuden a comprender las posibles causas de variación del cauce, elaborando cartografía para una posterior fase de investigación mediante modelización hidráulica que vaya dirigida a paliar el impacto de las riadas periódicas. Para ello, se han empleado, tratado y explotado imágenes de los sensores remotos TM, ETM+, OLI y TIRS tomadas en un período comprendido entre 1993 y 2014, que se han contrastado con perfiles batimétricos, datos GPS, supervisión y muestreo tomados sobre el terreno. Se ha realizado así mismo, un estudio prospectivo de caso sobre cómo afectarían las variables obtenidas por teledetección a la modelización hidráulica, en particular, la rugosidad, proponiendo un marco metodológico global de integración de las tres técnicas: sistemas de información geográfica, teledetección y modelización hidráulica. ABSTRACT This project aims to develop the study of Tinguiririca River corridor in Chile, through spectral characterization and multitemporal remote sensing and other measurements. This involves studying the land cover, its dynamic changes and identifies clayey materials and iron oxides accumulations of hydrothermal alteration, present in the basin during the last three decades to explain their evolution. It aims to obtain new geospatial variables in order to understand the possible causes of channel variation, developing mapping to a later research stage using hydraulic modeling so as to mitigate the impact of periodic floods. In this way, it has used processed and exploited images of TM, ETM +, OLI and TIRS remote sensing, taken in a period between 1993 and 2014 which it has been compared with bathymetric profiles, GPS, monitoring and sampling data collected in the field . It has done a prospective study about the variables obtained condition on hydraulic modeling, roughness in particular, proposing IX a complete methodological framework about the integration of the three techniques: geographic information systems, remote sensing and modeling hydraulics

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Este Trabajo Fin de Grado trata de dar respuesta a un problema de movilidad sostenible en el municipio de Madrid. Mediante las herramientas de análisis geoespacial de los Sistemas de Información Geográfica (SIG) se buscan soluciones para la ampliación de la red de estaciones de suministro de combustibles alternativos como el Gas Licuado de Petróleo (GLP), Gas Natural Comprimido (GNC) y electricidad. Los resultados obtenidos determinan las posibles ubicaciones de los nuevos puntos atendiendo a criterios específicos según el tipo de combustible. Estas soluciones procuran que se alcancen las medidas impuestas por las directivas europeas en la materia de las Smart Cities. Además, con este Trabajo se muestran las capacidades de gestión de los SIG en el ámbito urbano y sus posibles aplicaciones. ABSTRACT: This Final Project answers the problem of sustainable mobility in the city of Madrid. By means of geospatial analysis tools of Geographic Information Systems (GIS) solutions are searched to extend the supply stations network for alternative fuels like Liquefied Petroleum Gas (LPG), Compressed Natural Gas (CNG) and electricity. The final results are the best possible locations of new items according to specific criteria depending on the type of fuel. These solutions seek to the measures imposed by the European directives are reached in the field of Smart Cities. In addition, This Final Project shows management capabilities of GIS in urban areas and their possible application.